201203317 六、發明說明: 本申β案主張201 〇年5月i 8曰申請之美國臨時申請 ''第1/345,897號之權利。以上申請案之全部教示 的方式併入本文中。 【發明所屬之技術領域】 ,“述種用於用以將化學溶劑引入至氣流之接觸器之 方法及對應的系統。將化學溶劑引導至接觸器之第—側 將氣流引導至接觸器之第二側上。接觸器之第—側 化千岭劑可渗透的。化學溶劑經由接觸器 至第二侧上,且產生與氣流之混合物。該混合物可用= =微影應用中塗底基板表面以增強圖案至基板表面之轉 【先前技術】 本發明之背景 如 光微景光學微影)係關於使用光學曝露將圖案(例 ,幾何圖案)自光遮罩轉印至塗佈有感光化學光阻之石夕 圓上。光阻至晶圓表面之黏著對圖案轉印及 I!程序中之執行的成功具有直接影響。為了增強光阻ί ^可利用化學溶劑(例如,六甲基二錢烧(hmds)) 在塗覆光阻前塗底晶圓表面。 可藉由將液體HMDS直接旋塗至石夕晶圓上來進行 曰圓底。儘管此方法有效且相對簡單,但由於典型地將 I帶額夕氣’因此在液體刪s塗底期間該等晶圓可 …分。此所夾帶之水分可與液體HMDS反應且抑 201203317 制其黏者至晶圓表面。 HMDS蒸氣塗底可用以使水分在液體hmds塗底中之 存在最小化。HMDS蒸氣常常施加至在封閉腔室中之晶圓表 面。 可藉由使用載氣(例如,典型地,E (亦即,NO)使 一罐液體HMDS起泡(使用起泡器)且獲得乂與聽⑽蒸 氣之混$物來產生HMDS蒸氣。典型地經由長管將N2與 HMDS洛氣之此混合物轉移至使用點。然而,使用起泡器產 生HMDS蒸氣效率低下’且造成各種缺點。舉例而言,起 泡益设置命令較大佔據面積,且不提供hmds蒸氣濃度之 有效率的控制。此外,起泡器設置典型地遠離使用點定位, 從而需要化與HMDS蒸氣混合物至使用點之長管道輸送。 在此長輸送期間,&與HMDS蒸氣之混合物更有可能曝露 至可增加引起晶圓上之缺陷的HMDS蒸氣之濃縮之機會的 壓降及溫度波動。 【發明内容】 本發明之總結 本發明之某些實例具體實例係關於用於使用點膜接觸 器之一種系統及一種對應的方法,該使用點膜接觸器用於 提ί、用於在應用將圖案轉印至基板表面之光學曝露前用化 學溶劑塗底基板之表面的混合物。該實例具體實例使用化 學溶劑可滲透之合成膜接觸器。該系統包括一化學溶劑 源,該化學溶劑源用於將一化學溶劑供應至該膜接觸器之 一第一側。該化學溶劑經由該膜接觸器之該第一側擴散至 201203317 該膜接觸器之一第二側。該系統進一步包括一氣體供應 源,該氣體供應源用於將一氣流供應至該膜接觸器之該第 二側且至該擴散之化學溶劑^該氣流及該擴散之化學溶劑 开> 成一用以覆蓋該基板表面之蒸氣混合物。該系統使用一 光微影光源,該光微影光源用於應用一將一圖案轉印至該 基板表面之光學曝露。覆蓋該基板表面之該混合物增強該 圖案至該基板表面之轉印。 本發明之另一實例具體實例係關於一種光微影系統, 其包括一蒸發接觸器及-光微影光源。該蒸發接觸器包括 一用於將一化學溶劑輸入至該接觸器之一第一側中之八 口。該化學溶劑經由該第一側擴散至該接觸器之一第二 側。該蒸發接觸器亦包括一用於將一氣流輸入至該接觸器 之該第二側中之入π。職流產生與該擴散之氣體之一混 合物。該蒸發接觸器進—步包括一 ^ 少U彷用於將來自該接觸器之 該第二側的該混合物輸出至一基板表面上之出σ。該光微 影光源應m案轉印至該基板表面之光學曝露該 混合物增強該圖案至該基板表面之該轉印。 本發明之又一實例具體實例係關於-種用於增強-圖 接=基板表面之轉印之光微影系統。該“包括—蒸發 該蒸發接觸器包括一用於將一化學溶劑輸入至該 蜀态之一第一側中之入口— 产 觸 用於將一氣流輸入至該接 勾益之第二側中之入口。吁與 該 δ亥化予洛劑經由該第一側擴散至 接觸益之一第二側,且力$埜_ /, ,-β .. 在3亥第—側上形成與該氣體之一 a勿。在該接觸器之該第/^丨卜 弟一惻上,一出口將該混合物輪 201203317 出至該基板表面上。該系統亦包括一光微影光源,該 景夕光源應用一將該圖案轉印 " Μ朱得叩主5亥基板表面之光學曝 混合物增強該圖案至該基板表面之轉印。 " 本發明之某些具體實例係關於一種化學蒸發系統,其 可用以改變—基板之表面能。該系統包括-化學溶劑可^ 透合成膜、-化學溶劑源、—氣體供應源及—光微影光源 該化學溶劑源將一化學溶劑供應至在該膜《一第―側上的 —入口。該化學溶劑經由該膜之該第一側擴散至該膜之一 第一側。遠氣體供應源將一氣流供應至在該膜之該第二側 上的一入口且至該擴散之化學溶劑。該氣流與該擴散之化 學溶劑形成經由在該膜之該第二側上的一出口轉移至該基 板表面上的一混合物。該光微影光源應用一將該圖案轉印 至該基板表面之光學曝露。在該基板表面上之該混合物增 強該圖案至該基板表面之轉印。 曰 泫膜接觸器可為一微孔中空纖維。該化學溶劑可為液 體或蒸氣六曱基二矽氮烷或異丙醇(IpA )。該氣流可為一 鼠氣流。 可使用一化學溶劑控制器控制至該膜之該第一側的化 學溶劑供應之流量及壓力。可使用一化學溶劑溫度控制器 控制該化學溶劑供應之一溫度。可使用一化學溶劑濃度控 制器控制該化學溶劑之濃度。 可將一氣體淨化器系統與該氣體供應源耦接以淨化該 所供應之氣流。可使用一氣體流量控制來控制至該膜之該 第二側的氣體供應之流量及壓力。可使用一氣流溫度控制 201203317 器控制該氣流之一溫度。 實例具體實例藉由使化 組分來提供較小的佔據面積 點應用使製程缺陷及污染最 定性的製程控制。 學廢料最小化且消除不必要之 及低的持有成本。另外,使用 小化’且改良對更好之製程穩 【實施方式】 本發明之詳細記述 自如在隨附圖式(其中相似的參考字元遍及不同視圖 指代相同的零件)中所說明的本發明之實例具體實例之以 下更特定描述,前述内容將顯而易見。圖式未必按比例繪 製,實情為對說明本發明之具體實例進行強調。 本發明不限於所描述之特定分子、組成物方法或協 疋’此係因為此等可變化。在描述中所使用之術語僅係為 了描述特定版本或具體實例之目的,且並不意欲限制將僅 由所附申請專利範圍限制的本發明之範®壽。 ώ本發明之實例具體實例提供用於將化學溶劑添加至氣 机且使用氣體與化學溶劑之混合物輔助將光微影圖案沈積 於塗佈有光阻之基板上的系統及方法兩者。儘管本具體實 例係針對混合物在諸如光微影之半導體製造中之用途,但 ^用途不限於此等系統。本發明之某些實例具體實例係關 、種用於(例如)在於表面之光微影處理前塗底基板中 用之化學蒸發系統。在某些具體實例中,可使用化 "、,··改變基板之表面能。蒸發系統用於將蒸氣(例如, 化學十I、 、’谷h )添加至氣流以形成氣體混合物。蒸氣在氣 201203317 二/成未汀染蒸氣,且混合物用以減少或消除在微影护 n統中之污染光學組分’維持基板上的塗層之化: 性’促進在加工期間的光阻之黏著(例如,黏著促 : 2增強圖案至基板表面之光微影轉印。在光微影中之 路用以移除基板之多個部分,且將圖案自光遮罩轉印至咸 光化學品(亦即’光阻),至基板。接著使用某—化學處二 將圖案雕刻至在光阻下之基板中。 本發明之實例具體實例係關於—種用 =之轉印的化學蒸發系該系統包括化學溶= 透。成膜、將化學溶劑供應至在犋之第一側上的入 學溶劑源,及將氣流供應至在膜之第二側上的入 供應源。化學溶劑經由膜之第一側擴散至膜之第二側,且 氣流之蒸氣混合物。、經由膜之第二側上的出口將氣 -轉移至基板表面上。該系統亦包括光微影光源,該 應用將圖案轉印至基板表面之光學曝露。在基板表面上: 混合物增強圖案至基板表面之轉印。 如本文中所使用之術語「化學溶劑」 或“(氣體)形式下之化學溶劑。化學溶劑按蒸氣形= 订進通過膜,使得在膜之腔側上 工 (氣體)形式下。 mu氣 一膜為化學溶劑可渗透合成膜(例如,骐接觸器),其包 括第一側(亦即,殼側)及第二側(亦 其化學溶劑可參透性,膜允許化學 1知因於 進入膜之第二側。在某些具體實例中幻二第-側擴散且 膜之第一側包括連 201203317 接至化學溶劑源以接收化學溶劑供應之入口,使化學溶劑 供應擴散至膜之第二側。膜之第二側包括入口及出口。 口可連接至氣體供應源以接收氣流。氣流與擴散之化學、、容 劑形成混合物,該混合物經由出口轉移出膜之第二側。 在某些具體實例中’膜接觸器可包括外殼及一或多個 微孔中空纖維膜。在此等具體實例令,外殼具有用於輸入 及輸出蒸氣或液體(例如,化學溶劑蒸氣)之入口及在中 空纖維之第一側上的對應的出口》外殼進一步包括用於輸 入氣流及輸出氣流或氣體混合物之入口及在中空纖維之第 二側上的對應的出口。微孔中空纖維膜應貢獻少於十億分 之一的使微影投影系統中的光學組件之光學性質降級的污 染物。膜可被清潔或處理以減少或移除此等污染物。 適合於在半導體製造(諸如,用於光微影應用)中使 用之任何化學溶劑可供本發明使用。在一較佳具體實例 中,化學溶劑可為較低表面張力液體,諸如用於在其塗覆 至的表面上產生較低表面張力之界面活性劑。在一特定= 佳具體實例中,化學溶劑可為液體或氣體六f基二秒氣二 (HMDS)。將HMDS用作較佳化學溶劑,此係因為並常; 在光微影中用作黏著促進劑,用於塗底基板以增強光 基板表面之結合。化學溶劑之其他實例包括^甲基_2十各 :_(聰)、異丙醇(IPA)、|L酸乙酷、環己醇、丙二醇 早甲U«(PGMEA)、丙:醇單曱喊⑽㈣或丙綱。 適合充當用於在光微影應用中之化學溶劑蒸氣之載氣 任何氣流可供本發明使用特定較佳具體實例 10 201203317 ^ 中,氣流可為氮(n2)氣。5 w 札乳體可(諸如)藓由、事化及/戍 增濕至適合於其預期用途 )藉由净化及/次 於某些光微影應用)在使例如’淨化氣流可適合 氣趙源可包括與-=Γ處!或預加工。 口及與蒸發器之淨化氣體入二再生淨化器流體連通之入 氣體出口。、-仆。。、立σ ^體連通的自淨化器之淨化 乱體出口。/尹化商可獨立地 艚入σ铉A & 立自至淨化器之源氣 肢入口移除3染物以形成淨化氣體。 本發明使用使用點接觸器 中使用的其:夕a m ’在正在光微影製程 物施加至晶圓,藉此消除對用於:,體-化學溶劑蒸氣混合 移至声面…“氣體_化學溶劑混合物轉 -fb ^ ^ ^ ^ 求另外,由於臈接觸器使用201203317 VI. INSTRUCTIONS: This patent claims the right to apply for US Provisional Application ''No. 1/349,897' in May 2012. The manner in which all of the above teachings are taught is incorporated herein. [Technical field to which the invention pertains], "A method for introducing a chemical solvent into a contactor of a gas stream and a corresponding system. The chemical solvent is directed to the first side of the contactor to direct the gas flow to the contactor On the two sides, the first side of the contactor is permeable. The chemical solvent passes through the contactor to the second side and produces a mixture with the gas stream. The mixture can be used to enhance the surface of the base substrate in the lithography application. Pattern-to-Substrate Surface Transfer [Prior Art] The background of the present invention, such as photomicro-optical lithography, relates to the use of optical exposure to transfer a pattern (eg, a geometric pattern) from a photomask to a photoresist coated with a photoresist. On Shi Xiyuan. The adhesion of the photoresist to the surface of the wafer has a direct impact on the pattern transfer and the success of the execution in the I! program. To enhance the photoresist, chemical solvents can be used (for example, hexamethyl diacetone ( Hmds)) Coating the surface of the wafer before applying the photoresist. The liquid HMDS can be directly spin-coated onto the Shi Xi wafer for rounding. Although this method is effective and relatively simple, it is typically Eve The gas 'is therefore the wafers can be divided during the liquid s coating. The entrained moisture can react with the liquid HMDS and inhibit the adhesion to the wafer surface by 201203317. The HMDS vapor coating can be used to make the liquid in the liquid. The presence of the hmds is minimized. HMDS vapor is often applied to the surface of the wafer in the closed chamber. A tank of liquid HMDS can be foamed by using a carrier gas (e.g., typically E (i.e., NO) (Using a bubbler) and obtaining a mixture of helium and helium (10) vapor to produce HMDS vapor. This mixture of N2 and HMDS gas is typically transferred to the point of use via a long tube. However, the use of a bubbler produces HMDS vapor. Inefficiency' and causes various shortcomings. For example, the foaming setting command has a larger footprint and does not provide efficient control of the hmds vapor concentration. Furthermore, the bubbler settings are typically located away from the point of use, thus requiring Long pipe transfer from the HMDS vapor mixture to the point of use. During this long transport, the mixture of & HMDS vapor is more likely to be exposed to the opportunity to increase the concentration of HMDS vapors that cause defects on the wafer. </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; A mixture for coating a surface of a substrate with a chemical solvent prior to optical exposure to transfer the pattern to the surface of the substrate. This example embodiment uses a chemical solvent permeable synthetic membrane contactor. The system includes a source of chemical solvent. A source of chemical solvent is used to supply a chemical solvent to a first side of the membrane contactor. The chemical solvent diffuses through the first side of the membrane contactor to a second side of one of the membrane contactors 201203317. The system further Included as a gas supply source for supplying a gas stream to the second side of the membrane contactor and to the diffused chemical solvent, the gas stream and the diffused chemical solvent are opened to form a gas a vapor mixture of the surface of the substrate. The system uses a photolithographic light source for applying an optical exposure that transfers a pattern to the surface of the substrate. The mixture covering the surface of the substrate enhances the transfer of the pattern to the surface of the substrate. Another example of the invention is directed to a photolithography system that includes an evaporative contactor and a photolithographic source. The evaporative contactor includes a port for inputting a chemical solvent into one of the first sides of the contactor. The chemical solvent diffuses through the first side to a second side of the contactor. The evaporative contactor also includes an input π for inputting a gas stream into the second side of the contactor. The job stream produces a mixture with one of the diffusing gases. The evaporative contactor further includes a U-like imitation for outputting the mixture from the second side of the contactor to a surface σ on a substrate surface. The photolithographic light source is optically exposed to the surface of the substrate to expose the mixture to enhance the transfer of the pattern to the surface of the substrate. Still another embodiment of the present invention relates to a photolithography system for enhancing the transfer of a substrate surface. The "including-evaporating the evaporative contactor includes an inlet for inputting a chemical solvent into the first side of the enthalpy state - the contact is for inputting a gas stream into the second side of the hook The inlet and the gas are diffused to the second side of the contact benefit via the first side, and the force $野_ /, , -β .. is formed on the third side of the 3H A. No. On the first side of the contactor, an outlet exits the mixture wheel 201203317 onto the surface of the substrate. The system also includes a photolithography source, and the illumination source application The pattern is transferred to an optically exposed mixture of the surface of the substrate to enhance the transfer of the pattern to the surface of the substrate. " Some specific examples of the invention relate to a chemical evaporation system that can be used Changing—the surface energy of the substrate. The system includes a chemical solvent permeable synthetic film, a chemical solvent source, a gas supply source, and a photolithography source. The chemical solvent source supplies a chemical solvent to the film. - the inlet on the side. the chemical solvent passes through the membrane The first side diffuses to a first side of the membrane. The far gas supply source supplies a gas stream to an inlet on the second side of the membrane and to the diffused chemical solvent. The gas stream and the diffusion chemical solvent Forming a mixture transferred to the surface of the substrate via an outlet on the second side of the film. The photolithographic light source applies an optical exposure that transfers the pattern to the surface of the substrate. The mixture enhances the transfer of the pattern to the surface of the substrate. The membrane contactor can be a microporous hollow fiber. The chemical solvent can be a liquid or vapor hexamethylene diazane or isopropanol (IpA). The gas stream can be a mouse gas stream. A chemical solvent controller can be used to control the flow and pressure of the chemical solvent supply to the first side of the membrane. A chemical solvent temperature controller can be used to control the temperature of the chemical solvent supply. A chemical solvent concentration controller is used to control the concentration of the chemical solvent. A gas purifier system can be coupled to the gas supply to purify the supplied gas stream. A gas flow control can be used. Controlling the flow and pressure of the gas supply to the second side of the membrane. A gas flow temperature control 201203317 can be used to control the temperature of one of the gas streams. Example embodiments provide a smaller footprint by utilizing the composition Process control that minimizes process defects and contamination. Minimizes academic waste and eliminates unnecessary and low cost of ownership. In addition, the use of miniaturization and improvement is better for better process [Embodiment] Detailed description of the present invention The foregoing is a more particular description of the preferred embodiments of the embodiments of the invention The specific examples are illustrative of the invention. The invention is not limited to the particular molecules, compositions, or methods described, as such may vary. The terms used in the description are for the purpose of describing particular versions or specific examples, and are not intended to limit the scope of the invention, which is limited only by the scope of the appended claims. DETAILED DESCRIPTION OF THE INVENTION Example embodiments of the present invention provide both systems and methods for adding a chemical solvent to a gas and using a mixture of a gas and a chemical solvent to assist in depositing a photolithographic pattern onto a substrate coated with a photoresist. Although this specific example is directed to the use of a mixture in semiconductor fabrication such as photolithography, the use is not limited to such systems. Specific examples of certain embodiments of the present invention are, for example, chemical vaporization systems for use in coating a substrate prior to photolithographic processing of a surface. In some specific examples, the surface energy of the substrate can be changed using ",. An evaporation system is used to add a vapor (e.g., chemical chemistry, ' valley h) to the gas stream to form a gas mixture. The vapor is vaporized in the gas 201203317 bis, and the mixture is used to reduce or eliminate the contaminated optical component in the lithography system to maintain the coating on the substrate: the property 'promotes the photoresist during processing Adhesion (for example, adhesion: 2 enhances the transfer of light to the surface of the substrate by photolithography. The path in the photolithography is used to remove portions of the substrate and transfer the pattern from the photomask to the salt light Chemicals (ie, 'resistances') to the substrate. The pattern is then engraved into the substrate under photoresist using a certain chemical. The specific examples of the present invention are related to the chemical evaporation of the transfer. The system includes chemical dissolution, film formation, supply of a chemical solvent to a source of a solvent source on a first side of the crucible, and supply of a gas stream to an infeed source on a second side of the membrane. The first side diffuses to the second side of the membrane and the vapor mixture of the gas stream. The gas is transferred to the surface of the substrate via an outlet on the second side of the membrane. The system also includes a photolithographic source that applies the pattern Optical exposure to the surface of the substrate On the surface of the substrate: transfer of the mixture enhancement pattern to the surface of the substrate. As used herein, the term "chemical solvent" or "chemical solvent in the form of (gas). Chemical solvent in the form of vapor = set through the film, so that The cavity side of the membrane is in the form of a gas (gas). The mu gas membrane is a chemical solvent permeable synthetic membrane (for example, a tantalum contactor) comprising a first side (ie, a shell side) and a second side (also The chemical solvent is permeable, and the membrane allows the chemical to be known to enter the second side of the membrane. In some embodiments, the dimorphic side-side diffusion and the first side of the membrane includes the 201203317 source to the chemical solvent source to receive the chemical solvent The supply inlet allows the chemical solvent supply to diffuse to the second side of the membrane. The second side of the membrane includes an inlet and an outlet. The port can be connected to a gas supply to receive the gas stream. The gas stream forms a mixture with the diffusion chemistry, the agent, The mixture is transferred out of the second side of the membrane via the outlet. In some embodiments, the membrane contactor can include a housing and one or more microporous hollow fiber membranes. In this particular example, the housing has utility The inlet and the outlet of the vapor or liquid (eg, chemical solvent vapor) and the corresponding outlet on the first side of the hollow fiber further comprise an inlet for the input gas stream and the output gas stream or gas mixture and in the hollow fiber Corresponding outlets on the two sides. The microporous hollow fiber membrane should contribute less than one part per billion of contaminants that degrade the optical properties of the optical components in the lithographic projection system. The membrane can be cleaned or treated to reduce or shift In addition to such contaminants, any chemical solvent suitable for use in semiconductor fabrication, such as in photolithographic applications, can be used in the present invention. In a preferred embodiment, the chemical solvent can be a lower surface tension liquid. For example, a surfactant for producing a lower surface tension on the surface to which it is applied. In a particular embodiment, the chemical solvent may be a liquid or gas six f-based two second gas two (HMDS). HMDS is used as a preferred chemical solvent because it is often used as an adhesion promoter in photolithography for coating a substrate to enhance the bonding of the surface of the optical substrate. Other examples of chemical solvents include ^methyl-2-deca: _(song), isopropanol (IPA), |L-acid, cyclohexanol, propylene glycol, early U{(PGMEA), C: alcohol monoterpene Shout (10) (4) or C. Suitably suitable as a carrier gas for chemical solvent vapors in photolithographic applications. Any gas stream may be used in accordance with the present invention. In a preferred embodiment, the gas stream may be nitrogen (n2) gas. 5 w The body of the milk can be used, for example, to purify and/or to be suitable for its intended use, by purifying and/or inferior to certain photolithography applications. Sources can be included with -=Γ! Or pre-processing. The inlet and the purge gas of the evaporator are in fluid communication with the second regeneration purifier. ,-servant. . Purification of the chaotic body by the purification of the self-purifier. / Yin Huashang can independently enter σ铉A & from the source of the purifier to remove the 3 dyes to form a purge gas. The present invention uses the use of a point contactor: it is applied to the wafer in the process of photolithography, thereby eliminating the pair for:, body-chemical solvent vapor mixing to the sound surface... "Gas_Chemistry The solvent mixture is transferred to -fb ^ ^ ^ ^ for additional use due to the use of tantalum contactors
Li最二氣體供應化學溶劑,因此其藉由使化學 必要之組分來提供較小的佔據面積及 , 4外,使用點應用使製程缺陷及污染最小 化’且改良對更好之製程穩定性的製程控制。 本發明之某此1他呈牌趣化丨γ πη 至U…… 關於一種用於增強圖案 ^表面之轉印的化學蒸發方法。該等實例具 =用於將化學溶劑供應至在合成膜之第—側上的入口及 將軋流供應至在膜之第二側上 ,Λ I万,左。化學溶劑經 由膜之第一側擴散至膜之第二 、 形成混合物。經由膜之第-側上的:流在第二側上 …主 膜之弟-側上的出口將氣體混合物轉移 至基板表面上。該實例具體實例應用將圖 面之光學曝露。在其舡主丨王丞板表 +小路在基板表面上之混合物增強圖案至基板 面之轉印。 土双衣 11 201203317 光學曝露將圖案轉印至基板表面。覆蓋基板之氣體混 合物用以減少或消除微影投影系統中之污染光學組分,維 持基板上的塗層之化學活性,及增強圖案至基板表面之光 微影轉印。 本發明之某些實例具體實例係關於一種用於增強圖案 至基板表面之轉印的光微影系統'該等實例具體實例包括 蒸發接觸器及光微影光源。該蒸發接觸器包括用於將化學 岭劑輪入至該接觸器之第一側中的入口及用於將氣流輸入 至。玄接觸器之第一側中的入口。化學溶劑經由接觸器之第 側擴散至第一側,且形成與氣流之混合物。在接觸器之 第二侧上的出口將混合物自接觸器之第二側輸出至基板表 面上°亥光彳政影光源應用將圖案轉印至基板表面之光學曝 露。該混合物增強圖案至基板表面之轉印。 術語「膜接觸器」在本文中用以一般指代具有適合於 用作化學溶劑之蒸發器之中空纖維膜的器件。在本發明 中,將膜接觸器用作蒸發器,蒸發器將來自化學溶劑之蒸 氣添加至淨化氣體流量,伴有減少或少於約萬億分之一的 所添加之污染物。已用於增濕之膜接觸器已描述於美國專 利第 6,149,817 號、第 6,235,641 號、第 6,3〇9,55〇 號第 M〇2,8U 號、第 6,474,628 號、第 MiM4i 號、第 6,669,177 號、第6,702,941號、第6,842,998号虎及pcT申請宰 pct/US2004/023490 及 pCT/US2〇〇7/〇〇79〇i 中其内容以 引用的方式併入本文中。類似的組態可用於本申請案中。 如本文中所使用之術語「轉印圖案」指代賦予傳入之 12 201203317 韓射束對應於待在基板之目標部分中產生之圖案的經圖案 化之橫截面。在此上下文中亦可使用術語「光閥」。_般 而&,圖案將對應於正在目標部分中產生的在器件(諸如, 積體電路或其他器件(見下文))中之特定功能層。此圖 案化器件之一實例為遮罩。遮罩之概念在微影中係熟知 的,且其包括諸如二元、交變相移型及衰減相移型之遮罩 類型’以及各種混合遮罩類型。此遮罩在輕射束中之置放 根據在遮罩上之圖案引起撞擊遮罩的輻射之選擇性透射 (在透射遮罩之情況下)或反射(在反射遮罩之情況下)。 在这罩之清况下,支撐結構將一般為遮罩台,其確保可將 遮罩固持於傳入之輕射束令之所要位置,且可相對於㈣ 束移動其(若如此需要)。 圖案化器件之另一實例為可程式化鏡陣列。此陣列之 :一實例為料可定址表面,其具有黏彈性㈣層及反射表 面。在此裝置後之基本原理為,例如,反射表面之經定址 =反射入射光作為繞射光’而未定址區反射入射光作為未 ::射光。使用適當之濾光器,可將未繞射光濾出反射束, 攸而僅邊下繞射光。以此方式,輕射束變得根據矩陣可定 址=面之定址圖案而圖案化。可程式化鏡陣列之一替代具 :實例:吏用u小鏡之矩陣配置,#由施加合適的局部化電 二二:戈?由使用屢電致動器,該等鏡中之每-者可個別地 圍繞軸線傾斜。A +,# & 1 ^ 再-人釦為矩陣可定址的,使得經定址之 =在不同方向上將傳入之輻射束反射至未定址鏡。以此 ;根據矩陣可疋址鏡之定址圖案來圖案化反射束。可 13 201203317 使用合適的電子器件執行所需之矩陣定址。在上文所描述 之兩個隋形下,圖案化器件可包含一或多個可程式化鏡陣 列。關於如此處所提及之鏡陣列的更多資訊可(例如)自 美國專利 5,296,891 及 5,523,193及 PCT f 請案 WO 98/3 8597 及WO 98/33096看出。在可程式化鏡p車列之情況下支撐 結構可體現為框架或台,例,其可按需要為固定或可移 動的。 圖案化器件之另—實例為可程式化LCD陣列。此構造 之一實例在美國專利5,229,872中給出。如上,在此情況下 之支標結構可體現為框架或台,例如,其可按需要為固定 或可移動的。 術語「輻射」及「束」意欲包含用以圖案化基板上之 抗触劑的所有類型之電磁輻射。此等可包括X射線、紫外 線(UV)輪射(例如,具有 365 nm、248 nm、193 nm、157 nm或126nm之波長)及超紫外(euV)輻射(例如,具有 範圍5 nm至20 nm中之波長),以及粒子束(諸如,離子 束或電子束)。 本發明之某些具體實例可包括用於量測氣體-化學溶劑 蒸氣之濃度比的額外步驟。舉例而言,在某些具體實例中, 可使用感測器判定通過氣體供應源的氣體之質量流量速 率。或者或另外,本發明之某些具體實例可量測在膜接觸 器中的化學溶劑之壓力。 本發明之某些具體實例包括用於將氣體·化學溶劑混合 物中的氣體對化學溶劑之濃度比控制及/或調整至預定比率 14 201203317 的額外步驟。舉例而言,本發明之一些具體實例可藉由調 整/控制通過氣體供應源的氣體之質量流量速率來調整及/ 或控制氣體y匕學溶劑混合物中的氣體對化學溶劑之濃度 比。或者或另外,本發明之某些具體實例可在溶劑進入膜 接觸器前或時調整/控制化學溶劑之壓力及/或流量。在一些 具體實例中,可調整及/或控制在化學溶劑在膜接觸器中時 的化學溶劑之壓力及/或流量。下文將關於圖式進一步描述 此荨特徵。 圖1A說明可用作蒸發器之膜接觸器。氣流丨經由在連 =件丨〇處之纖維腔3進入蒸發器2,在於腔3 _時橫穿蒸 如态2之内部,在此處,其轉由膜接觸器2與化學溶劑蒸 乱1刀開,且經由在連接件4〇處之纖維腔退出膜接觸器2。 化干岭削热氣4經由連接件3G進人外殼且實質上填充外咬 之内壁與纖維(亦#,膜接觸器殼)之外徑之間的空I 且經由連接器20退出。 士:明之實例具體實例使用化學溶劑蒸氣可渗透之膜 =。化學溶劑蒸氣經由殼側進入外殼,且經由膜擴散 接觸^。。所得混合物經由在連接件4〇處之纖維腔退出膜 用於在本發明中使用之較 流量之第—…八亡#乂佳漆發益包括含有淨化氣體 域"「/I 學溶劑之第二區域,其中第-區 區域…上抵擒液體侵入之氣體可渗透膜分 膜可為可摺疊或打權的薄片’或可在相對側處接合以Li's second gas supplies a chemical solvent, so it provides a smaller footprint by making the chemically necessary components, and uses point applications to minimize process defects and contamination' and improves process stability. Process control. One of the present inventions has a 丨 π πη to U... a chemical evaporation method for enhancing the transfer of a pattern surface. These examples have = for supplying a chemical solvent to the inlet on the first side of the synthetic membrane and for supplying the rolling stream to the second side of the membrane, Λ I, left. The chemical solvent diffuses through the first side of the membrane to the second of the membrane to form a mixture. The gas mixture is transferred to the surface of the substrate via the outlet on the first side of the membrane on the second side of the membrane. This example embodiment application exposes the optical exposure of the image. The transfer of the mixture enhancement pattern to the substrate surface is carried out on the surface of the substrate. Earthen clothing 11 201203317 Optical exposure transfers the pattern to the surface of the substrate. The gas mixture covering the substrate serves to reduce or eliminate contaminating optical components in the lithographic projection system, maintain chemical activity of the coating on the substrate, and enhance photolithographic transfer of the pattern to the substrate surface. Some example embodiments of the present invention relate to a photolithography system for enhancing transfer of a pattern to a substrate surface. Examples of such examples include an evaporation contactor and a photolithography source. The evaporative contactor includes an inlet for introducing a chemical sorbent into the first side of the contactor and for inputting a gas flow thereto. The entrance in the first side of the mysterious contactor. The chemical solvent diffuses to the first side via the first side of the contactor and forms a mixture with the gas stream. An outlet on the second side of the contactor outputs the mixture from the second side of the contactor to the surface of the substrate. The application of the pattern to the substrate surface is optically exposed. The mixture enhances the transfer of the pattern to the surface of the substrate. The term "membrane contactor" is used herein to generally refer to a device having a hollow fiber membrane suitable for use as an evaporator for a chemical solvent. In the present invention, a membrane contactor is used as an evaporator which adds steam from a chemical solvent to the purge gas flow with less or less than about one part per billion of added contaminants. Membrane contactors that have been used for humidification have been described in U.S. Patent Nos. 6,149,817, 6,235,641, 6, 3, 9, 55, No. M, 2, 8 U, 6, 474, 628, MiM 4i, Nos. 6,669,177, 6,702,941, 6,842,998, and the application of the PCT application to the pct/US2004/023490 and pCT/US2〇〇7/〇〇79〇i are incorporated herein by reference. A similar configuration can be used in this application. The term "transfer pattern" as used herein refers to a patterned cross section that imparts an incoming image to a pattern that is to be produced in a target portion of a substrate. The term "light valve" can also be used in this context. The pattern will correspond to a particular functional layer in the device (such as an integrated circuit or other device (see below) that is being generated in the target portion. An example of this patterned device is a mask. The concept of a mask is well known in lithography and includes mask types such as binary, alternating phase shift and attenuated phase shifting, as well as various hybrid mask types. The placement of the mask in the light beam causes selective transmission of radiation (in the case of a transmissive mask) or reflection (in the case of a reflective mask) depending on the pattern on the mask. In the case of this cover, the support structure will generally be a masking station which ensures that the mask can be held in the desired position of the incoming light beam and that it can be moved relative to the beam (if so required). Another example of a patterned device is a programmable mirror array. An example of this array: an example of a material addressable surface having a viscoelastic (four) layer and a reflective surface. The basic principle behind this device is, for example, that the reflective surface is addressed = reflected incident light as diffracted light' and the unaddressed region reflects incident light as un-reflected light. Using a suitable filter, the un-diffracted light can be filtered out of the reflected beam, and only the side is diffracted. In this way, the light beam becomes patterned according to the addressing pattern of the matrix addressable = face. One of the alternatives to the programmable mirror array: Example: 矩阵Using a small mirror matrix configuration, #by applying appropriate localized electricity 22: Ge? By using an electric actuator, each of the mirrors can be individually tilted about the axis. A +, # & 1 ^ Again - the person is matrix-addressable such that the addressed = reflected the incoming beam of radiation in different directions to the unaddressed mirror. Thereby, the reflected beam is patterned according to the addressing pattern of the matrix addressable mirror. 13 201203317 Perform the required matrix addressing using the appropriate electronics. The patterned device may comprise one or more programmable mirror arrays in the two sides described above. Further information on the mirror arrays as referred to herein can be seen, for example, from U.S. Patent Nos. 5,296,891 and 5,523,193 and PCT, the disclosure of WO 98/3 8597 and WO 98/33096. In the case of a programmable mirror p train, the support structure can be embodied as a frame or table, for example, which can be fixed or movable as desired. Another example of a patterned device is a programmable LCD array. An example of such a configuration is given in U.S. Patent 5,229,872. As above, the support structure in this case can be embodied as a frame or table, for example, which can be fixed or movable as desired. The terms "radiation" and "beam" are intended to include all types of electromagnetic radiation used to pattern the anti-contact agents on the substrate. Such may include X-ray, ultraviolet (UV) shots (eg, having wavelengths of 365 nm, 248 nm, 193 nm, 157 nm, or 126 nm) and ultra-ultraviolet (euV) radiation (eg, having a range of 5 nm to 20 nm) The wavelength in the middle), as well as a particle beam (such as an ion beam or an electron beam). Some specific examples of the invention may include additional steps for measuring the concentration ratio of gas-chemical solvent vapor. For example, in some embodiments, a sensor can be used to determine the mass flow rate of gas through the gas supply. Alternatively or additionally, certain embodiments of the invention may measure the pressure of a chemical solvent in a membrane contactor. Some specific examples of the invention include an additional step for controlling and/or adjusting the concentration ratio of gas to chemical solvent in the gas/chemical solvent mixture to a predetermined ratio 14 201203317. For example, some embodiments of the present invention may adjust and/or control the concentration ratio of gas to chemical solvent in the gas mixture by adjusting/controlling the mass flow rate of the gas through the gas supply. Alternatively or additionally, certain embodiments of the invention may adjust/control the pressure and/or flow of the chemical solvent before or when the solvent enters the membrane contactor. In some embodiments, the pressure and/or flow rate of the chemical solvent when the chemical solvent is in the membrane contactor can be adjusted and/or controlled. This 荨 feature will be further described below with respect to the drawings. Figure 1A illustrates a membrane contactor that can be used as an evaporator. The gas stream enters the evaporator 2 via the fiber chamber 3 at the joint, and traverses the interior of the vaporized state 2 at the chamber 3, where it is transferred by the membrane contactor 2 and the chemical solvent is scrambled 1 The knife is opened and the membrane contactor 2 is withdrawn via the fiber chamber at the connector 4〇. The hot air-cutting gas 4 enters the outer casing via the connecting member 3G and substantially fills the space I between the inner wall of the outer bite and the outer diameter of the fiber (also #, membrane contactor shell) and exits via the connector 20. Shi: The specific example of Ming uses a chemical solvent vapor permeable membrane =. The chemical solvent vapor enters the outer shell via the shell side and diffuses through the membrane. . The resulting mixture is withdrawn from the membrane via the fiber chamber at the joint 4 for use in the flow of the first in the present invention - ... 八 亡 乂 漆 包括 包括 包括 包括 包括 包括 包括 包括 含有 含有 含有 含有 含有 含有 含有 含有 含有 含有 含有 含有 含有a two-zone, wherein the first-zone zone...the gas permeable membrane film that resists liquid intrusion may be a foldable or weighted sheet' or may be joined at the opposite side
S 15 201203317 形成中空纖維Μ堇必需地,膜結合用以將犋接合至外殼之 任何密封劑或黏著劑防止液體在正常操作條件(例如,3〇 碎/平方英忖表Μ或以下之壓力)下侵人至氣體中。膜較佳 地經組態以使接觸氣體及化學溶劑的膜之表面積最大化且 使膜之體積最小化。蒸發器可含有每器件多於—個膜如 下文所述。 具有中空纖維膜之蒸發器典型地包括: a) —束複數個氣體可滲透中空纖維膜,其具有第一端 及第二端,其中該等膜具有外表面及内表面,其中内表面 α 包含第一區域及第二區域中之一者; b) 用不透液體密封件所灌注的該束之每—端,其形成 具有包圍外s又之端結構,其中纖維端對流體流動開放; c) 具有内壁及外壁之外殼,其中内壁界定在内壁與中 空纖維膜之間的第一區域及第二區域中之另—者; d )具有連接至氣體源之淨化氣體入口及淨化氣體混合 物出口的外殼;及 e )具有連接至化學溶劑源之化學溶劑入口及化學溶劑 出口的外殼,其中氣體入口連接至該束之第一端且氣體混 合物出口連接至該束之第二端,或化學溶劑入口連接至該 束之第一端且化學溶劑出口連接至該束之第二端。 在本啦明之蒸發器之版本中所使用的中空纖維膜典型 地為下列中之一者.a)具有多孔去皮内表面、多孔外表面 及其間之多孔支撐結構的中空纖維膜;b )具有非多孔去皮 内表面、多孔外表面及其間之多孔支撐結構的中空纖維 16 201203317 膑,C)具有多孔去皮外表面、多孔内表面及其間之多孔支 撐結構的中空纖維膜;或d)具有非多扎去皮外表面、多孔 内表面及其間之多孔支撐結構的中空纖維膜。此等中空纖 維膜可具有約350微米至約1450微米之外徑。 工、 田此等中空纖維膜為具有多孔去皮内表面、多孔外表 面及其間之多孔支撐結構的中空纖維膜或具有多孔去皮外 表面:多孔内表面及其間之多孔支撐結構的中空纖維膜 時’多孔去皮表面孔較佳地直徑或其最大縱橫為自約〇〇〇1 i次米至約0 · 〇 〇 5微米。去皮表面中之?丨故杜^ 動。 皮表面中之孔較佳地面向液體流S 15 201203317 Forming Hollow Fibers Necessarily, the film incorporates any sealant or adhesive used to bond the crucible to the outer casing to prevent the liquid from operating under normal operating conditions (eg, 3 mash/square inch or less) Invade people into the gas. The membrane is preferably configured to maximize the surface area of the membrane in contact with the gas and chemical solvent and to minimize the volume of the membrane. The evaporator may contain more than one membrane per device as described below. An evaporator having a hollow fiber membrane typically comprises: a) a plurality of gas permeable hollow fiber membranes having a first end and a second end, wherein the membranes have an outer surface and an inner surface, wherein the inner surface a comprises One of the first region and the second region; b) each end of the bundle impregnated with a liquid-tight seal formed to have an end structure that surrounds the outer s, wherein the fiber ends are open to fluid flow; An outer casing having an inner wall and an outer wall, wherein the inner wall defines another one of the first region and the second region between the inner wall and the hollow fiber membrane; d) having a purge gas inlet and a purge gas mixture outlet connected to the gas source An outer casing; and e) an outer casing having a chemical solvent inlet and a chemical solvent outlet connected to a source of chemical solvent, wherein the gas inlet is connected to the first end of the bundle and the gas mixture outlet is connected to the second end of the bundle, or a chemical solvent inlet Connected to the first end of the bundle and the chemical solvent outlet is connected to the second end of the bundle. The hollow fiber membrane used in the version of the evaporator of the present invention is typically one of the following: a) a hollow fiber membrane having a porous peeled inner surface, a porous outer surface and a porous support structure therebetween; b) having Hollow fiber 16 having a non-porous peeled inner surface, a porous outer surface and a porous support structure therebetween 201203317, C) a hollow fiber membrane having a porous peeled outer surface, a porous inner surface and a porous support structure therebetween; or d) having A hollow fiber membrane that is non-multiple-attached to the outer surface, the porous inner surface, and the porous support structure therebetween. These hollow fiber membranes can have an outer diameter of from about 350 microns to about 1450 microns. The hollow fiber membranes of the work, field, etc. are hollow fiber membranes having a porous peeled inner surface, a porous outer surface and a porous support structure therebetween, or a hollow fiber membrane having a porous peeled outer surface: a porous inner surface and a porous support structure therebetween Preferably, the porous perforated surface pores have a diameter or a maximum aspect ratio of from about 1 i to about 0 μm to about 5 μm. Peeled in the surface? Why do you want to move? The hole in the surface of the skin preferably faces the liquid flow
用於膜之合適㈣料包㈣賴酮(PE 聚四氟乙烯(PTFE)、噌而,成“ 郑 聚丙烯、聚颯、全氟烷氧基(PFA ) 及其他熱塑性聚合物或全氟化聚合物。剛 =聚乙稀㈣外殼之用途特別較佳。不可濕聚合物 …用二氣:聚合物)特別較佳,尤其是適合於供高壓 达A ,,,、.、、、機氧化物(例如,SOx& ΝΟχ ’其中 X為自1至3之暫游、4 ms入 聚5物。用於中空纖維膜之合適材 料品要與用於外殼之好斗止& α — 材料日±女土 材枓熱相谷。在選擇用於中空纖維之 可考慮諸如孔隙率、表面能、可渴性及萨水性 之因素。某些具體實例可對中空膜 广及‘水丨生 τ』τ工勝愿用表面處理,以允畔 與正使用之化學溶劑之 性聚合物,材料包括全氟化熱塑 (PTFE-共-PFVAE))、~稀、-全氟(烧基乙婦基越))(聚 j· - ^ R (四軋乙烯-共-六氟丙烯)(FEP)哎 其摻合物,因為此等爷人 ;^ a 〇物並不受到使用之嚴格條件的不 201203317 利影響。PFA Teflon®為聚(PTFE-共-PFVAE)之一實例,其 中烧基主要地或完全為丙基。FEP Teflon®為聚(FEP)之一實 例。兩者皆由 DuPont 製造。Neofl〇nTM PFA ( DaikinSuitable for the film (4) package (4) lysone (PE polytetrafluoroethylene (PTFE), 噌, into " Zheng polypropylene, polyfluorene, perfluoroalkoxy (PFA) and other thermoplastic polymers or perfluorinated Polymer. The use of the outer shell of the polyethylene (4) is particularly preferred. The non-wettable polymer is particularly preferably used with two gases: polymer, especially suitable for high pressure up to A,,,,,,, and machine oxidation. (for example, SOx & ΝΟχ 'where X is a temporary trip from 1 to 3, 4 ms into a mixture of 5. The appropriate material for the hollow fiber membrane should be used for the outer shell of the shell & alpha - material day ± female soil material is hot phase valley. In the selection of hollow fiber, factors such as porosity, surface energy, thirst and water can be considered. Some specific examples can cover the hollow film and the 'water τ τ』 τ工胜 is willing to use surface treatment to allow the chemical polymer of the chemical solvent to be used, including perfluorinated thermoplastic (PTFE-co-PFVAE), ~ dilute, - perfluoro (calcyl-based)越)) (poly j· - ^ R (four-rolled ethylene-co-hexafluoropropylene) (FEP) 哎 its blend, because these people; ^ a 〇 It is not affected by the strict conditions of use 201203317. PFA Teflon® is an example of poly(PTFE-co-PFVAE) in which the alkyl group is mainly or completely propyl. FEP Teflon® is one of poly (FEP) Example. Both are manufactured by DuPont. Neofl〇nTM PFA ( Daikin
Industries )為類似於DuPont之PFA Teflon®的聚合物。烧 基主要地為甲基之聚(PTFE-共-PFVAE)描述於美國專利第 5,463,006號中,其内容以引用的方式併入本文中。較佳聚 合物為可自 Ausimont USA, Inc·,Thorofare,N. J.獲得之 Hyflon®聚(PTFE-共-PFVAE) 620。使此等聚合物形成為中 空纖維膜之方法揭示於美國專利第6,582,496號及第 4,902,456號中,其内容以引用的方式併入本文中。 灌注為形成具有在每一纖維周圍之不透液體密封件的 盲薄片之製程。管溥片或罐將蒸發器之内部與環境分開。 罐熱結合至外殼容器以產生整體端結構。當纖維及罐結合 至外殼以形成僅由熱塑性材料(例如’全氟化熱塑性材料) 組成之單-實體時,獲得整體端結構。整體端結構包含包 含於灌注端中的纖維束之部分、罐及熱塑性外殼之端: 分,其内表面與罐一致且結合至其。藉由形成整體結構: 產生更穩固之蒸發器,不大可能在罐與外殼之界面處茂漏 ^外有故障。此外,%成整體端結構避免了使用諸如卢 乳樹脂之黏著劑將纖維結合於適當位置之需求。此: 劑典型地包括揮發性烴,其污染流過蒸發器之者 ::而言、,使用由一營銷之一丨增濕= I二軋體顯著地有環氧樹脂之味道,此清晰地指” ”肢的不可接受之烴含量,可能為數百ppm。灌注及钟 18 201203317 合製程為在於1999年1月29曰申請之美國申請案第 60/1 1 7,853號中所描述的方法之改編且揭示於美國專利第 6,582,496號及pCT/US2咖/⑻2378中,其教示以引用的方 式併入。該等成束之中空纖維膜較佳地經製備,使得束之 第一端及第二端灌注有不透液體熱塑性密封件(例如,全 氟化密封)’從而與包圍之熱塑性外殼(例如,全氟化外殼% 形成包含第一端及第二端兩者之單一整體端結構,其中該 等端之纖維對流體流動單獨地開放。在一些具體實例中了 可將不飽和聚酯(UPE)灌注用於灌注υρΕ纖維。 外殼或膜接觸器殼可由與化學溶劑、預期用途及中空 纖維膜相容之任何材料製成。舉例而言,外殼可為不鏽鋼: 聚乙稀、聚丙稀、PFA、PTFE,或與上文所描述之纖維相同 的材料。 \圖1B說明本發明之一實例具體實例。該實例具體實例 係關於利用基於含敗聚合物之中空纖維膜將化學溶劑落氣 (例如,HMDS蒸氣)引入至氣流(例如,N2氣流)’中'之 使用點膜接觸器2。化學溶劑蒸氣43〇由化學溶劑源435供 應。化學溶劑43G之流量、溫度、濃度及/或壓力可由控制 器450控制。氣體供應源⑽亦將氣流供應至__ ^ 氣流之流量、溫度、漠度及/或壓力可由控制器460控制。 化學溶劑蒸氣43〇經由入口 1G1在膜之殼側Μ中流動,且 氣錢由入口 102在膜捿觸器2之腔側2B上流動q匕學溶 U丄由膜擴散至載氣中。載氣載有化學溶劑蒸氣,從 而產生可沈積於基板上以增強在塗佈有光阻之基板上的光 19 201203317 微影圖案之轉印的載氣-蒸氣混合物。可通過氣體-化學溶劑 混合物管線經由入口丨03將氣體-化學溶劑混合物5〇5轉移 至基板。藉由在使用點處提供氣體_化學溶劑混合物,本= 明之具體實例使製程缺陷及污染最小化,且改良對更好之 製程穩定性的製程控制。 圖2為用於使用點接觸器2(展示於圖1A至圖a中) 的本發明之一實例具體實例,其與氣體供應系統丨〇〇 (下文 關於圖7所描述)耦接且充當用於所供應之氣冑128的蒸 發器系統。本發明之具體實例可使用使用點接觸器2將化 學溶劑蒸氣引入至由氣體供應系統所供應之氣體中。使用 點接觸器2可耦接氣體出口丨3〇 '丨3卜1 32中之一或多者。 接觸器2可利用基於含貌聚合物之中空纖維膜將化學溶劑 蒸氣引入至氣流420中》 ?矣氣可為化學溶劑430 (由供應源435所供應),諸如 液體或氣體六曱基二石夕4@ ( HMDS )。纟他可能的化學溶 劑430包括N-甲基-2-。比咯啶酮(NMP)、異丙醇(IpA) ' 乳酸乙酯、環己醇、丙二醇單曱醚乙酸酯(pgmea )、丙二 醇單曱醚(PGME)或丙酮。 膜接觸器2與氣體供應源1 〇〇及化學溶劑供應源435 流體連通。氣體供應源100將預定量之氣體(諸如,n2 ) 供應至膜接觸器2及外殼5 1 2之腔側2B。類似地,化學溶 劑源435將化學溶劑提供至膜接觸器2及外殼5丨2之殼側 2 A。如參看圖丨a所解釋,由於接觸器之殼側2八為化學溶 劑可滲透的,因此化學溶劑經由接觸器2擴散至氣流上, 20 201203317 從而導致產生化學溶劑蒸氣-氣體混合物。 膜接觸器2亦與化學溶劑-氣體混合物管線5〇5在膜接 觸器2之另一端上流體連通。化學溶劑-氣體混合物管線5〇5 用以輸送形成於膜接觸器2中之化學溶劑-氣體混合物,用 於在於光微影應用中塗底基板表面時使用。 熱感測及控制器件(一般展示為化學溶劑控制器45〇 及氣體控制器460 )可進一步用以維持化學溶劑_氣體混合 物之穩定溫度。特定言之,由於將化學溶劑添加至氣流, 因此化學溶劑-氣體混合物之性質(諸如,化學溶劑之濃产 或純度)可受刪地控制。舉例而言,可藉由將氣流(: 身又展示為加熱或未加献之痛衣 不…之虱凌470 )、化學溶劑或此等之组 合之溫度控制至約+ ρΓ # 的濃度之精確度。;·藉成化學溶劑在氣流中 使得氣體不侵入至化學^夺氣體與化學溶劑之間的壓力 濃戶日❹來控制化學溶劑在氣流中的 :度’且氣體中之化學溶劍濃度伍 内。可藉由控制溫度、壓力尸_ 5/。或以下 ,.^ 力、氣體流動速率或此:夕紅>Η· 組合使得化學溶劑在氣體 Η此專之任何 溶劑在氣流中的濃度,例女的濃度基本上怪定來維持化學 濃度變化約5%或以下,右二,在乳體混合物中之化學溶劑 且在再其他版本中,在製二些版本中,其變化1%或以下, 間,蒸氣在淨化氣體混八:广谷劑·氣體混合物之時間期 可藉由控制至蒸發跑少於約〇.5%。 控制器46〇)、與氣體現二,之机動速率(氣體流量 此等之任何組合以達成變化一稀釋氣體之流動速率或 化5%或以下之化學溶劑濃度來控 21 201203317 制化學溶劑430在混合物中的濃度。 自化學溶劑濃度感測器之輸出可供控制器450在控制 迴路中用以調整氣體或化學溶劑壓力、調整化學溶劑或氣 體之溫度、調整添加至氣體混合物的稀釋氣體之量或此等 之任何組合,以達成化學溶劑在氣體中之量以形成提供在 本發明之一些版本中變化少於5%、在一些版本中變化少於 1 %且在再其他版本中變化少於0.5%之化學溶劑濃度的氣體 混合物。 可有利地將氣體或氣體混合物之溫度維持至在光微影 製程容差内之溫度範圍’以使投影裴置中的光學元件之熱 膨脹或收縮最小化且減少折射率之改變。可有利地將化學 溶劑在氣體混合物中之濃度維持在此等範圍内,以使折射 率及干涉量測之結果的改變最小化。 可以不同方式控制化學溶劑在氣體混合物中之相對 量。舉例而言,可控制相對於具有化學溶劑43〇之氣體之 量的帶入至接觸器2中之無化學溶齊,丨43〇之氣體的量。所 控制之參數可為内部溫度,、廢力、氣體在化學溶劑 中之駐留時間中的一或多者。 已知溫度具有對化學溶劑之飽和量之效應。為了控 溫度’接觸H2可具備加熱元件(圖中未示),該加熱元 由控制器件或控制益回應於表示由溫度量測器件所提供 在接觸器内部之溫度之溫度信號而控制。 當化學溶劑可隨壓力而增加時,化學溶 觸器之速率增加。由於化學溶劑具有較低表面張力之化: 22 201203317 性質,此滲透速率亦可增加。隨著氣體流過接觸器2之腔 側2 B ’此滲透之化學溶劑蒸氣在氣流中混合,從而形成氣 體-化學溶劑混合物。只要存在化學溶劑與氣體之間的濃度 差且氣體不飽和,即可發生滲透。氣體_化學溶劑混合物僅 在氣流中載有化學溶劑蒸氣。在氣體_化學溶劑混合物中不 存在液體分子。 圖3 A為根據本發明之實例具體實例的將化學溶劑-氣 體混合物供應至基板65〇之系統的實例具體實例。該系統 包括膜接觸器2、基板(例如,晶圓)65〇、濃度感測器67〇、 溫度控制器(加熱器)_、氣體質量流量控制器_、液 體壓力調節器695及液體流量計699。 文所解釋,氣流由可具有可變壓力之氣體供應源 100二應至曰膜接觸器2。可引導氣體供應通過溫度控制器_ 及.質里流s控制器690。溫度控制器680可加熱或冷卻氣體 以控制其溫度。由於貯氣器供應可變壓力下之氣體,因此 氣體質置流量批在丨丨奕、< η Λ >*里控制為690可用以將穩定的氣體流量提供至 膜接觸器2。氣艚暂旦、ώ曰 孔體質里流罝控制器69〇可耦接至恰當程式化 之處理器(圖巾去-、 〒未不),s亥處理器又可耦接至濃度感測器 ,以控制氣體之濃度比。 劑供應源435將化學溶劑(例如,液體或氣體 Η. 1VL L) 〇 ) 月莫接觸器2。化學溶劑液體供應435可與 體Μ力調節^ Β . 〇 及液體流量計699耦接。液體壓力調節 ^ G 3及液、、衣曰 ^、± 體叫罝計699控制至膜接觸器2中的液體質量 動速率。铜。。 ” p态095及流量計699可耦接至恰當程式化 23 201203317 之處理器(圖中未示)’該處理器耦接至濃度感測器670。 濃度感測器670促進至膜接觸器2中的化學溶劑質量流動 速率之控制,且控制在膜接觸器2内之液體壓力。 化學溶劑在氣體正通過接觸器2之腔側2B的同時擴散 至。玄腔側中》化學溶劑由氣體載運,從而形成氣體-化學溶 劑扣合物。將此混合物蒸氣施加至基板或晶圓65〇以增強 圖案至基板表面之轉印。 可使用濃度感測器6 7 0量測在混合物中的氣體及化學 >谷劑之濃度等級。濃度感測器67〇可電耦接至恰當程式化 之處理器(圖中未示),該處理器又可耦接至氣體質量流量 控制器690或壓力調節器695及流量計699。經程式化之處 理器分析此資料以判定其是否匹配由操作者所鍵入之變 數,該等變數判定在混合物中的氣體及化學溶劑之所要濃 度比。若濃度感測器資料不匹配預定濃度比資料,則處理 裔相應地與氣體質量流量控制器690或液體壓力調節器695 通信及調整氣體質量流量控制器69〇或液體壓力調節器 695。 圖3B為根據本發明之實例具體實例的使用點膜接觸器 2之說明。如上文所解釋,將氣流42〇及化學溶劑43〇引入 至膜接觸器2之各別入口’且將化學溶劑_氣體混合物5〇5 自膜連接器之腔側上的出口轉移至基板65〇 (例如,晶圓) 表面上。加熱板660可用以加熱基板65〇以用於將圖案轉 印至基板650。膜接觸器2之使用點本質減少了製程污染, 且移除了對用於將混合物轉移至基板表面的大轉移管之需 24 201203317 求。 圖3C包括說明在臈面積之上正規化的化學溶劑蒸發速 率()與氣流之流動速率(Ι/min/m2 )之間的關係 之曲線。在圖3C中所展示之實例中所使用之化學溶劑為 HMDS,氣流為氮,且使用與液體HMDS相容且允許Hmds 热氣之良好參透的peek中空纖維膜。 用中空圓圈所標註之資料點表示流過0.丨4平方英尺之 膜面積的HMDS。用實心圓圈所標註之資料點表示流過 0.03 5平方英尺之膜面積的HMDS,且用加號所標註之資料 點表示流過0.14平方英尺之膜面積的HMDS。如圖3c中所 示,在固定膜面積下,化學溶劑含量隨氣流流動速率減小 而增加(見標有P-2及CF-3之資料點)。在給定氣流流量下, 化學 >容劑飽和度隨膜面積增加而增加。 鄰近於每一資料點(亦即’中空圓圈、實心圓圈及加 唬)出現之數字表不對應於特定氣體(水平轴線)及化學 溶劑(垂直軸線)流動速率的所量測之HMDS蒸氣濃度百 分比。舉例而言,對於具有大致〇·14平方英尺膜面積之特 定器件,當氣體流量為每平方公尺每分鐘4〇〇公升 (1/min/m2)且化學溶劑流量為每平方公尺每分鐘4公升 時,在出口中的化學溶劑蒸氣之所量測濃度為約百分之 40。用加號及術語「P-2」所標註之資料點為離群值(歸因 於實驗誤差)° 圖3D包括况明化學溶劑蒸發效率(作為% hmds飽和) 與氣流流量(1/min/m2)之間的相關性之曲線。在圖3d中 25 201203317 HMDS ’氣流為氮,且 膜。圖3D中所展示之 量之函數的HMDS蒸 所展示之實例中所使用之化學溶劑為 使用特定表面處理之PEEK中空纖維 曲線說明作為母膜面積正規化的氮流 氣飽和度》 如關於圖3 C所提,展示化學溶々 W蒸乳飽和度隨膜面積 增加而增加。由於速率限法,丨斗_ & , (午吸制步驟為經由膜的Hmds某發, 因此圖3D中所展示之曲線可在判 J牡巧疋用於已知目標化學溶劑 飽和度及氣流流動速率之應用的膜面積之適當大小時使 用。為了!得圖3D中所展示之曲線,製造具有各種膜表面 積之蒸發P蒸發器在各種測試條件下用以量測在各種氮 流動速率(由「X」表示)下的HMDS节方a π 4軋之百分比(由「γ」 表示)。可獲得使HMDS菽氧之百八a ,、 ,.,、现之百刀比(Y )與氮流動速率 (X )有關之以下關係·· 1η(Υ) = -0.445 * ln(X) + 6.41 舉例而言’使用以上公式,為了達到百分之9〇的麵5 蒸氣濃度’在表面積之上正規化的氮流量為約721/_化2。 圖4為本發明之一高階實例具體實例。該實例具體實 例包括膜接觸H 2’膜接觸器2經配置為化學溶劑可渗透 的二實例具體實例600進一步包括黏著促進劑供應源435, 黏著促進劑供應源435用於將化學溶劑43〇供應至犋之第 -側2A。化學溶劑43〇經由膜之第一側2八擴散至膜之第 一側2B實例具體實例6〇〇進一步包括氣體供應源1〇〇, 氣體供應源100將氣流420供應至膜之第二側26且至擴散 26 201203317 之化學溶劑。氣流420與擴散之化學溶劑形成用以覆蓋其 板表面5 1 0之氣體-化學溶劑混合物505。該實例具體實例 進步包括光彳政影光源5 2 0 ’光微影光源5 2 〇應用將圖案轉 印至基板表面510之光學曝露530。覆蓋基板表面$丨 氣 體-化學溶劑混合物505增強圖案至基板表面5 1〇之轉印 圖5示意性地描繪可供本發明之實例具體實例使用的 微影投影裝置卜裝置1包括底板BP及氣體供應系統丨 裝置1亦可包括輻射源LA (例如,EITV輻射)^第—物件 (遮罩)台MT具備經組態以固持遮罩μα (例如,★, 比例光Industries) is a polymer similar to PPont Teflon® from DuPont. The polyalkylene group (PTFE-co-PFVAE) is described in U.S. Patent No. 5,463,006, the disclosure of which is incorporated herein by reference. A preferred polymer is Hyflon® poly(PTFE-co-PFVAE) 620 available from Ausimont USA, Inc., Thorofare, N. J. The method of forming such a polymer into a hollow fiber membrane is disclosed in U.S. Patent Nos. 6,582,496 and 4,902,456, the contents of each of each of each The infusion is a process of forming a blind sheet having a liquid-tight seal around each fiber. A tube or can separates the interior of the evaporator from the environment. The can is thermally bonded to the outer casing to create an integral end structure. The integral end structure is obtained when the fibers and cans are bonded to the outer shell to form a single-body consisting only of a thermoplastic material (e.g., 'perfluorinated thermoplastic material). The integral end structure comprises a portion of the fiber bundle contained in the infusion end, the end of the can and the thermoplastic outer casing: a portion whose inner surface conforms to and is bonded to the can. By forming a unitary structure: a more stable evaporator is produced, and it is unlikely that there is a fault at the interface between the tank and the outer casing. In addition, the % integral end structure avoids the need to bond fibers in place using an adhesive such as lacquer. This: The agent typically includes volatile hydrocarbons, which pollute the evaporator through:: In terms of, using one of the marketing 丨 humidification = I two rolled body significantly has the taste of epoxy resin, this clearly Refers to the unacceptable hydrocarbon content of the limb, which may be hundreds of ppm. Infusion and clock 18 201203317 The process is an adaptation of the method described in US Application No. 60/1 1 7,853, filed Jan. 29, 1999, the disclosure of which is incorporated herein by reference in U.S. Pat. No. 6,582,496 and pCT/US2 Coffee/(8) 2378 Its teachings are incorporated by reference. The bundled hollow fiber membranes are preferably prepared such that the first end and the second end of the bundle are impregnated with a liquid-tight thermoplastic seal (e.g., a perfluorinated seal) to enclose the thermoplastic outer shell (e.g., The perfluorinated outer shell % forms a single unitary end structure comprising both the first end and the second end, wherein the fibers of the ends are individually open to fluid flow. In some embodiments, the unsaturated polyester (UPE) can be used. Infusion for infusion of υρΕ fibers. The outer casing or membrane contactor shell can be made of any material that is compatible with chemical solvents, intended uses, and hollow fiber membranes. For example, the outer casing can be stainless steel: polyethylene, polypropylene, PFA, PTFE, or the same material as described above. Fig. 1B illustrates an example of an embodiment of the present invention. This example is directed to the use of a hollow fiber membrane based on a polymer containing a polymer to liquefy a chemical solvent (for example, The HMDS vapor is introduced into the gas stream (for example, N2 gas stream) by using the membrane contactor 2. The chemical solvent vapor 43 is supplied by the chemical solvent source 435. The flow rate and temperature of the chemical solvent 43G The concentration and/or pressure may be controlled by the controller 450. The gas supply (10) also supplies the gas flow to the __^ flow, temperature, humidity, and/or pressure of the gas stream may be controlled by the controller 460. The chemical solvent vapor 43 is passed through the inlet 1G1 Flowing in the side of the shell of the membrane, and the money is flowed from the inlet 102 on the chamber side 2B of the membrane contactor 2, and the gas is diffused into the carrier gas by the membrane. The carrier gas carries the chemical solvent vapor, thereby Producing a carrier gas-vapor mixture that can be deposited on the substrate to enhance the transfer of light 19 201203317 lithographic pattern on the substrate coated with the photoresist. Gas-chemistry can be carried out via the inlet 丨03 through a gas-chemical solvent mixture line The solvent mixture 5〇5 is transferred to the substrate. By providing a gas-chemical solvent mixture at the point of use, the specific example of this method minimizes process defects and contamination, and improves process control for better process stability. An example embodiment of the invention for use with point contact 2 (shown in Figures 1A-a), which is coupled to a gas supply system 丨〇〇 (described below with respect to Figure 7) and serves as a Supply An evaporator system of 胄 128. A specific example of the invention may use a point solvent to introduce a chemical solvent vapor into a gas supplied by a gas supply system. The point contactor 2 may be coupled to a gas outlet 丨 3 〇 '丨One or more of 3 Bu 1 32. The contactor 2 can introduce a chemical solvent vapor into the gas stream 420 using a hollow fiber membrane based on the appearance polymer. The helium gas can be a chemical solvent 430 (supplied by the supply source 435) ), such as liquid or gas hexamethylene bismuth 4@ ( HMDS ). His possible chemical solvents 430 include N-methyl-2-.pyrrolidone (NMP), isopropanol (IpA) 'lactic acid Ethyl ester, cyclohexanol, propylene glycol monoterpene ether acetate (pgmea), propylene glycol monoterpene ether (PGME) or acetone. The membrane contactor 2 is in fluid communication with a gas supply source 1 and a chemical solvent supply source 435. The gas supply source 100 supplies a predetermined amount of gas (such as n2) to the membrane contactor 2 and the chamber side 2B of the outer casing 51. Similarly, a chemical solvent source 435 provides a chemical solvent to the membrane contact 2 and the shell side 2 A of the outer casing 5丨2. As explained with reference to Figure a, since the shell side 2 of the contactor is permeable to the chemical solvent, the chemical solvent diffuses through the contactor 2 onto the gas stream, 20 201203317 resulting in a chemical solvent vapor-gas mixture. The membrane contactor 2 is also in fluid communication with the chemical solvent-gas mixture line 5〇5 on the other end of the membrane contactor 2. The chemical solvent-gas mixture line 5〇5 is used to transport the chemical solvent-gas mixture formed in the membrane contactor 2 for use in coating the surface of the substrate in photolithographic applications. Thermal sensing and control devices (generally shown as chemical solvent controller 45A and gas controller 460) can be further utilized to maintain a stable temperature of the chemical solvent-gas mixture. In particular, since a chemical solvent is added to the gas stream, the nature of the chemical solvent-gas mixture (such as the richness or purity of the chemical solvent) can be controlled by the ground. For example, the temperature can be controlled to a concentration of about + ρΓ # by the airflow (the body is again shown as a heated or unapplied pain coat), the chemical solvent, or a combination of these. degree. ; borrowing a chemical solvent in the gas stream so that the gas does not invade to the pressure between the chemical gas and the chemical solvent, the concentration of the chemical solvent in the gas flow: the degree 'and the chemical concentration of the sword in the gas . Can be controlled by temperature, pressure corpse _ 5 /. Or the following, the force of the gas, the gas flow rate, or the combination of the chemical solvent in the gas stream, the concentration of any solvent in the gas stream, the concentration of the female is basically ambiguous to maintain the chemical concentration change. About 5% or less, the second right, the chemical solvent in the milk mixture and in other versions, in the two versions, the change is 1% or less, and the vapor is mixed in the purge gas: • The time period of the gas mixture can be less than about 〇.5% by controlling to evaporate. Controller 46〇), with the gas current, the motoring rate (the gas flow rate, any combination of these to achieve a change of the flow rate of a diluent gas or a chemical solvent concentration of 5% or less) 21 201203317 chemical solvent 430 The concentration in the mixture. The output from the chemical solvent concentration sensor can be used by the controller 450 in the control loop to adjust the gas or chemical solvent pressure, adjust the temperature of the chemical solvent or gas, and adjust the amount of diluent gas added to the gas mixture. Or any combination of these to achieve the amount of chemical solvent in the gas to form a variation of less than 5% in some versions of the invention, less than 1% in some versions, and less than in other versions. a gas mixture of 0.5% chemical solvent concentration. It may be advantageous to maintain the temperature of the gas or gas mixture to a temperature range within the photolithographic process tolerance to minimize thermal expansion or contraction of the optical elements in the projection device and Reducing the change in refractive index. It is advantageous to maintain the concentration of the chemical solvent in the gas mixture within such ranges to achieve a refractive index and The change in the results of the measurement is minimized. The relative amount of chemical solvent in the gas mixture can be controlled in different ways. For example, the amount of gas introduced into the contactor 2 relative to the amount of gas having a chemical solvent of 43 Å can be controlled. The amount of gas that is not chemically dissolved, 丨43〇. The parameter controlled can be one or more of the internal temperature, the waste force, and the residence time of the gas in the chemical solvent. The temperature is known to have a saturation of the chemical solvent. The effect of the quantity. In order to control the temperature, the contact H2 may be provided with a heating element (not shown) which is controlled by the control device or the control element in response to a temperature signal indicating the temperature provided by the temperature measuring device inside the contactor. Control. When the chemical solvent increases with pressure, the rate of the chemical contactor increases. Since the chemical solvent has a lower surface tension: 22 201203317 nature, this permeation rate can also increase. As the gas flows through the contactor 2 Cavity side 2 B 'This infiltrated chemical solvent vapor is mixed in the gas stream to form a gas-chemical solvent mixture as long as there is a chemical solvent and gas Permeation occurs when the degree is poor and the gas is not saturated. The gas-chemical solvent mixture carries only the chemical solvent vapor in the gas stream. There are no liquid molecules in the gas-chemical solvent mixture. Figure 3A is an example of an example according to the present invention. An example of a system for supplying a chemical solvent-gas mixture to a substrate 65. The system includes a membrane contactor 2, a substrate (eg, wafer) 65, a concentration sensor 67, a temperature controller (heater) _, gas mass flow controller _, liquid pressure regulator 695 and liquid flow meter 699. As explained herein, the gas flow is supplied by a gas supply source 100 that can have a variable pressure to the diaphragm contactor 2. The gas supply can be guided Through the temperature controller _ and the mass flow s controller 690. The temperature controller 680 can heat or cool the gas to control its temperature. Since the gas reservoir supplies a gas at a variable pressure, the gas mass flow rate is controlled to 690 in < η Λ >* to provide a stable gas flow to the membrane contactor 2. The 艚 艚 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 ώ曰 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 To control the concentration ratio of the gas. The reagent supply source 435 will be a chemical solvent (for example, liquid or gas Η. 1VL L) 〇 ) Momo contactor 2. The chemical solvent liquid supply 435 can be coupled to the body force adjustment Β and the liquid flow meter 699. Liquid pressure adjustment ^ G 3 and liquid, clothing 曰 ^, ± body 罝 699 control the liquid mass velocity in the membrane contactor 2. copper. . The p-state 095 and the flow meter 699 can be coupled to a processor (not shown) of the appropriate stylized 23 201203317. The processor is coupled to the concentration sensor 670. The concentration sensor 670 is facilitated to the membrane contactor 2 The chemical solvent mass flow rate is controlled, and the liquid pressure in the membrane contactor 2 is controlled. The chemical solvent diffuses while the gas is passing through the chamber side 2B of the contactor 2. The chemical solvent is carried by the gas. Forming a gas-chemical solvent conjugate. The vapor of this mixture is applied to the substrate or wafer 65 to enhance the transfer of the pattern to the surface of the substrate. The concentration sensor 607 can be used to measure the gas in the mixture and Chemistry > concentration level of the granules. The concentration sensor 67 〇 can be electrically coupled to a suitably programmed processor (not shown), which in turn can be coupled to the gas mass flow controller 690 or pressure regulation 695 and flow meter 699. The programmed processor analyzes the data to determine if it matches a variable typed by the operator, and the variables determine the desired concentration ratio of gas and chemical solvent in the mixture. If the detector data does not match the predetermined concentration ratio data, then the processor communicates with the gas mass flow controller 690 or the liquid pressure regulator 695 and adjusts the gas mass flow controller 69 or the liquid pressure regulator 695. Figure 3B is based on DETAILED DESCRIPTION OF THE INVENTION Example of the use of the spot membrane contactor 2. As explained above, the gas stream 42〇 and the chemical solvent 43〇 are introduced to the respective inlets of the membrane contactor 2 and the chemical solvent_gas mixture 5〇5 The exit from the cavity side of the membrane connector is transferred to the surface of the substrate 65 (eg, wafer). The heating plate 660 can be used to heat the substrate 65 〇 for transferring the pattern to the substrate 650. Use of the membrane contactor 2 The point nature reduces process contamination and removes the need for a large transfer tube for transferring the mixture to the substrate surface. Figure 2C includes a chemical solvent evaporation rate () and gas flow normalized over the area of the crucible. The relationship between the flow rate (Ι/min/m2). The chemical solvent used in the example shown in Figure 3C is HMDS, the gas flow is nitrogen, and is compatible with liquid HMDS. A peek hollow fiber membrane that allows good Hmds to penetrate the air. The data points marked with a hollow circle indicate the HMDS flowing through the membrane area of 0. 平方 4 square feet. The data points marked with solid circles indicate a flow of 0.03 5 squares. The HMDS of the membrane area of the foot, and the data points marked by the plus sign indicate the HMDS flowing through the membrane area of 0.14 square feet. As shown in Figure 3c, the chemical solvent content decreases with the gas flow rate at the fixed membrane area. And increase (see data points labeled P-2 and CF-3). At a given airflow rate, chemical > agent saturation increases with increasing membrane area. Adjacent to each data point (ie, 'hollow Circles, solid circles, and twisted numbers appear as numbers that do not correspond to the measured HMDS vapor concentration percentage for a particular gas (horizontal axis) and chemical solvent (vertical axis) flow rate. For example, for a particular device having a membrane area of approximately 〇14 square feet, the gas flow rate is 4 liters per minute (1/min/m2) per square meter and the chemical solvent flow rate is per square meter per minute. At 4 liters, the concentration of chemical solvent vapor in the outlet is about 40 percent. The data points marked with the plus sign and the term "P-2" are outliers (due to experimental error). Figure 3D includes the chemical solvent evaporation efficiency (saturated as %hmds) and airflow (1/min/ A curve of correlation between m2). In Figure 3d, 25 201203317 HMDS 'flow is nitrogen, and the membrane. The chemical solvent used in the example shown by the HMDS evaporation as a function of the amount shown in Figure 3D is the nitrogen flow gas saturation normalized as the master film area using a specific surface treated PEEK hollow fiber curve as described in Figure 3 C It is suggested that the chemical solubility of the steamed milk is increased as the membrane area increases. Due to the rate limit method, the bucket _ & , (the afternoon suction step is a Hmds via the membrane, so the curve shown in Figure 3D can be used to determine the target chemical solvent saturation and gas flow in the J 牡 疋The flow rate is applied to the appropriate size of the membrane area. To obtain the curve shown in Figure 3D, an evaporative P evaporator with various membrane surface areas was fabricated to measure various nitrogen flow rates under various test conditions (by "X" indicates the percentage of the HMDS square a π 4 rolling (represented by "γ"). The HMDS 菽 之 a a a a a a a a a HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM HM The flow rate (X) is related to the following relationship: · 1η(Υ) = -0.445 * ln(X) + 6.41 For example, 'Using the above formula, in order to achieve 9 百分之 surface 5 vapor concentration' above the surface area The normalized nitrogen flow rate is about 721 / _ 2. Figure 4 is a high-order example of the present invention. The specific example of the example includes a two-example embodiment in which the membrane contact H 2 'membrane contactor 2 is configured to be chemically solvent permeable. Example 600 further includes an adhesion promoter supply source 435 for adhesion promotion The supply source 435 is used to supply the chemical solvent 43A to the first side 2A of the crucible. The chemical solvent 43 is diffused to the first side of the membrane via the first side of the membrane 2B. Example 6 further includes a gas supply source In other words, the gas supply source 100 supplies the gas stream 420 to the second side 26 of the membrane and to the chemical solvent of the diffusion 26 201203317. The gas stream 420 forms a gas-chemical solvent with the diffused chemical solvent to cover the surface of the plate 5 1 0 . Mixture 505. This example embodiment advances include a photochemical light source 5 2 0 'photolithographic light source 5 2 〇 applying an optical exposure 530 that transfers the pattern to the substrate surface 510. Covering the substrate surface 丨 gas-chemical solvent mixture 505 Transfer of the reinforced pattern to the substrate surface 5 1 图 schematically depicts a lithographic projection apparatus 1 that can be used in an example of the present invention. The apparatus 1 includes a bottom plate BP and a gas supply system. The device 1 can also include a radiation source LA. (eg, EITV radiation) ^ The first object (mask) stage MT is configured to hold the mask μα (eg, ★, proportional light)
罩)之遮罩固持器,且連接至第一定位器件ΡΜ, 一 A σ 步—疋位 器件PM關於投影系統或透鏡PL準確地定位摭豈。 心早。弟二物 件(基板)台WT具備經組態以固持基板w (例如,塗佈 有抗蚀劑之矽晶圓)之基板固持器,且連接至第二定位器 件PW,第二定位器件PW關於投影系統PL準確地定位= 板。投影系統或透鏡PL(例如,鏡群)經組態以將遮罩 之照射部分成像至基板w之目標部分c上。目標部分c可 包含一或多個晶粒。 A置1具有反射類型’且包括反射遮罩(料MA)。 然而,-般而言’裝置丨亦可具有透射類型,且包括透射 遮罩。或者,$置可使用另—種類之圖案化器件,諸如可 程式化鏡陣列。輻射源心(例如,放電或雷射產生之電聚 源)產生轄射。直接或在已橫穿調節器件(例如,擴束器 EX)後將此輻射饋入至照明系統(照明器)江中。:明器 可包括調整器件AM,調整器件趙設定賴射束中*的強度 27 201203317 分佈之外部及/或内部徑向範圍(通常分別被稱作s外部 (S 〇Uter)及s内部(s-inner))。另外’其可~般包含各種 其他組件’諸如積光器IN及聚光器CO。以此方式,撞擊 遮罩MA之輻射束PB在其橫截面中具有所要的均勻性及強 度分佈。 源LA可處於微影投影裝置之外殼内,當源La為水銀 燈時’情況常常如此,但其亦可遠離微影投影裝置。將其 產生之輻射引至裝置中。當源LA為準分子雷射時,情常 常為此後者情形。 ' 輻射束PB隨後截取固持於遮罩台Μτ上之遮罩ma。 已松穿了遮罩MA後,輻射束PB通過透鏡PL,透鏡PL將 輪射束PB聚焦至基板w之目標部分c上。借助於第二定 位器件PW及干涉計IF,可準確地移動基板台资(例如, 以便:位輻射束PB之路徑中的不同目標位置C)。類似地 第一定位器件PM可用以關於賴射束叩之路捏準確地定 遮罩MA (例如,纟自遮罩庫機械操取遮罩μα後或在掃^ 期間)。-般而言,可借助於長衝程模組(粗定位)及短^ 程模組,(細定位)·貧現物件台MT、WT之移動。然而^ 晶圓步進器之情況下(如與步進及掃描褒置相反),遮罩¥ MT可僅連接至短衝程致動器,或可為較的。可使用⑸ 對準mi & M2以及基板對準標記^及μ對準遮; ΜΑ及基板W。 … 種不同模式下使用所料之η ··首先Μ 進模式下’保持遮罩台μτ其 D Μτ基本上h,且立刻投影整4 28 201203317 罩影像(亦即,單-「_」至目標部分c±)。 或y方向上移位基板台WT,使得不同目標部 軲射士 PB照射。其次’在掃描模式下,相同情形適用,除 了在皁-「閃爍」中不曝露給定目標部分c外 承 遮罩台MT可在給定方向(所謂的「掃描方向」,例月如、.、,γ 方向)上按速度v移動’使得使韓射束pB在遮罩 掃描。同時,在相同或相反方向上按速度^ 基板台资,其中Μ為透鏡&之放大率(典型地,m = 或此方式’可曝露相對大的目標部& 衷解析度。 …而折 圖6說明可在圖5之微影投影裝置i中使用之投 統叫及輕射系統2。賴射系統2包括照明光學器件單: 4。輻射系統2亦可包含源收集器模組或輻射單元3 单疋3具備可藉由放電電漿所形成之料^ 可使用氣體或蒸氣,諸如氣(Xe)氣或鐘⑴…… 中可產生非常熱的《以發射在電磁波譜之euv= ^ 輕射。藉由使放電之部分離子化電聚崩塌至光…來: 生非常熱的《。可能需要Xe、u?$氣或任何其他 乳體或洛氣之(U _的部分壓力以用於輻射 產生。由輕射源LA所發射之輕射自源腔室7經由氣體障: 結構或「羯啡」9傳遞至收集器腔室8中。氣體障壁 包括绪如在吳國專利第6,862,〇75號及 6,359,969號中詳細描述之通道結構。 第 收集器腔室8包含㈣收集器-轉射收集器丨。可為 29 201203317 掠入射收集器。由收集器10所傳遞之轄射經反射離開待在 收集器腔室8中之礼隙處之虛擬源點12中聚焦的光柄光譜 渡光器U。自腔室8,在照明光學器件單元4中經由法向入 射反射器Π及U將投影束16反射至定位於比例光罩^ 罩台MT上之比例光罩或遮罩上。形成經圖案化之束π, 其在投影系統PL中經由反射元件18及19成像至晶圓平台 或基板台WT上。比所展示多的元件可—般存在於照明光學 器件單元4及投影系統PL中。 微影投影裝置1包括氣體供應系統⑽。氣體供應系統 100之氣體供應出口 13〇至133定位於投影系統凡及照明 光學器件單元4中,在反射器13及14以及反射元件18及 '附近。㉟而,若如此需要’裝置之其他部分可同樣地具 備氣體供應系統。舉例而言’微影投影裝置之比例光罩及 一或多個感測器可具備淨化氣體供應系統。 氣體供應系統_可定位於微影投影裝置i内部。可 使用在裝i "卜部之任何器件按適合於特定實施之任何方 式控制氣體供應系統⑽。然而,同樣有可能將氣體供應系 統⑽之至少一些部分定位於微影投影裳置"卜部(氣體 混合物產生器1 2〇 )。 圖7說明氣體供應系統100之-具體實例。氣體入口 π〇連接至供應實質上無水分之乾氣的氣體供應裝置(圖中 未不)。舉例而言,可使用加壓氣體供應電路、具有壓缩乾 =(例如:氮(N2)、氨或其他氣體)之氣紅。經由氣體 此。勿產生③120饋入乾氣。在氣體混合物產生器中, 30 201203317 可進一步淨化乾氣。 在某一具體實例中,氧體供座、。n ^孔Mt、應源12〇可耦接至淨 裝置m、流量計127、間125、漸縮管129、熱交換器⑶, 及根據本發明之具體實例的蒸發器。 可經由氣體入口 1 1 〇將氣f '、體應應至淨化器裝置 二舉例而s,可經由淨化氣體入口 u〇將來自⑶ 中未示)之壓縮乾空氣(CDA)供應至淨化器裝置128。_ 由淨化益128淨化。淨化器128包括兩個平行 及_,各自在流動方向上包括:自動闕咖或咖及八 可再生淨化器器件丨283或1284。 J丹生孑化益器件1283 夂各自具備加熱元件以加熱且藉此單獨且獨立地再生 各別申化器器件1283及1284。舉例 , 千丨J叫5 可使用一淨化5| .製造氣體,同時正離線再生另一 〇 π 尺丹王乃'於化益。流量分支在淨化 .夺裔件1283及1284之下游連接s+产減 198_ 卜办連接至可由氣體純度感測器 2 8 6控制之關斷閥1 2 8 5。 換器126可在實質上怪定的溫度下提供經淨化之 、:化“:乳(CDA)。熱交換器126提取熱或將熱添加至經 乎化之氣體(諸如,經淨化 眚# 一 彳化之CDA)’以便達成適合於特定 貫她之軋體溫度。舉例而. /Jj; 5,在诂影投影裝置中,使用穩 疋的加工條件且埶夺施哭 ^ .....由此使經淨化之CDA的溫度穩 疋以具有恆定或在隨時間 、-E/许 °去之預疋乍溫度範圍中的氣體 /皿度。熱交換器i 26可用丨、,袖#尸 γ ρ。。+ 用以5周郎軋體之溫度,以修改來自 洛,…之可蒸發液體的蒸氣之攝取。 經淨化之氣體可通過裔阳 札阻143至145,且經由多個氣體 31 201203317 =131'⑴輸出。氣阻⑷、i44、⑷限制氣體 ^罝,使得在淨化氣體出口 13〇、13卜132中之每一者處, 獲得所要的固定淨化裔艚、,ώ 疋乎化虱體狀里及壓力。用於在淨化氣體出 口處的淨化氣體魔力之合適閥可為(例如)1〇〇一。使用 可調整氣阻在淨化氣體出口⑽、131、132中之每一者處 提供可調整氣體流量可為可能的。 本文中所引用之所有專利、公開申請案及參考案之教 不的全部内容以引用的方式併入。 儘皆本發明已參考其實例具體實例得以特定展示及描 述’但熟習此項技術者應料,在不脫離由所附申請專利 範圍=包含的本發明之料之情況下,可在其中進行形式 及細節上之各種改變。 【圆式簡單說明】 圖1A說明可用作蒸發器之膜接觸器。 圖1B說明本發明之一實例具體實例。 圖2為用於使用點蒸發器的本發明之一實例具體實例。 圖3A為本發明之一具體實例之說明。 圖3B為根據本發明之實例具體實例的使用點膜接觸器 之說明。 圖3C包括說明化學溶劑流動速率(hmds)與氣流 之流動速率之間的關係之曲線。 旦圖3D包括說明化學溶劑(HMDS)蒸發效率與氣流流 里(N2 )之間的相關性之曲線。 圖4為本發明之一實例具體實例之說明。 32 201203317 圖5示意性地描繪一微影投影裝置。 圖6說明可在圖1之微影投影裝置中使用之投影系統 及輻射系統。 圖7說明氣體供應系統之一具體實例。 【主要元件符號說明】 圖1 A中之參考符號 1 :氣流 2 :蒸發器/膜接觸器 3 :纖維腔 4 :化學溶劑蒸氣 1 0 :連接件 20 :連接器 30 :連接件 40 :連接件 圖1 B中之參考符號 2 :膜接觸器 2A :殼側 2 B :腔側 100 :氣體供應源 1 0 1 :入口 102 :入口 103 :入口 430 :化學溶劑蒸氣 435 :化學溶劑源 33 201203317 450 :控制器 460 :控制器 5 0 5 :氣體-化學溶劑管線混合物 圖2中之參考符號 2 :使用點膜接觸器 2A :殼側 2B :腔側 100 :氣體供應 128 :氣體供應 130 :氣體出口 1 3 1 :氣體出口 132 :氣體出口 420 :氣流 430 :化學溶劑 435 :化學溶劑供應源 450 :化學溶劑控制器 460 :氣體控制器 4 7 0 :未加熱之氣流 5 05 :化學溶劑-氣體混合物管線 5 1 2 :外殼 圖3A中之參考符號 2 :膜接觸器 2A :殼側 2B :腔側 34 201203317 100 :氣體源 435 :化學溶劑供應 650 :基板(例如,晶圓) 670 :可選濃度感測器 680 :溫度控制器 690 :質量流量控制器 695 :壓力調節器 699 :流量計 圖3B中之參考符號 2 :膜接觸器 420 :氣流 430 :化學溶劑 505 :化學品-溶劑混合物 6 5 0 :基板 660 :加熱板 圖3C中之參考符號 CF-3 :資料點 P-2 :資料點 圖4中之參考符號 2 :合成膜 2A :膜之第一側 2B :膜之第二側 100 :氣體供應源 420 :氣流 35 201203317 430 :化學溶劑 435 :化學品供應源 505 :氣體-化學品混合物 5 1 0 :基板表面 5 20 :光源 530 :光學曝露 600 :實例具體實例 圖5中之參考符號 1 :投影裝置 100 :氣體供應系統 AM :調整器件 BP :底板 C :目標部分 CO :聚光器 EX :調節器件 IF :干涉計 IL :照明系統 IN :積光器 LA :輕射源 Μ1 :遮罩對準標記 M2 :遮罩對準標記 ΜΑ :遮罩 ΜΤ :遮罩台 Ρ1 :基板對準標記 36 201203317 P2 :基板對準標記 PB :輻射束 PL :投影系統或透鏡 PM :定位器件 PW :定位器件 W :基板 WT :基板台 X : X方向 Y : Y方向 圖6中之參考符號 1 :微影投影裝置 2 :輻射系統 3 :源收集器模組或輻射單元 4 :照明光學器件單元 7 :源腔室 8 :收集器腔室 9 :氣體障壁結構 I 0 :輻射收集器 II :光栅光譜濾光器 1 2 :虛擬源點 1 3 :入射反射器 1 4 :入射反射器 1 6 :投影束 1 7 :經圖案化之輻射束 37 201203317 1 8 :反射元件 1 9 :反射元件 100 :氣體供應源 120 :氣體混合物產生器 130 :氣體供應出口 1 3 1 :氣體供應出口 132 :氣體供應出口 133 :氣體供應出口 LA :轄射源 MT :遮罩台 0 :光轴 PL :投影系統 WT :基板台 圖7中之參考符號 100 :氣體供應系統 110 :氣體入口 120 :氣體混合物產生器 125 :閥 126 :熱交換器 127 :流量計 128 :淨化器裝置 128A :流量分支 128B :流量分支 130 :氣體出口 38 201203317 1 3 1 :氣體出口 132 :氣體出口 143 :氣阻 144 :氣阻 145 :氣阻 1281 :自動閥 1282 :自動閥 1 283 :可再生淨化器器件 1 284 :可再生淨化器器件 1 285 :關斷閥 1286 :氣體純度感測器 39The mask holder is attached to the first positioning device, and an A σ step-clamping device PM accurately positions the projection system or lens PL. Early heart. The second object (substrate) table WT has a substrate holder configured to hold the substrate w (for example, a resist wafer coated with a resist), and is connected to the second positioning device PW, and the second positioning device PW is The projection system PL is accurately positioned = plate. A projection system or lens PL (e.g., a mirror group) is configured to image the illuminated portion of the mask onto the target portion c of the substrate w. The target portion c may include one or more crystal grains. A is set to have a reflection type ' and includes a reflective mask (material MA). However, in general, the device can also be of a transmissive type and include a transmissive mask. Alternatively, $ can use another type of patterned device, such as a programmable mirror array. The source of the radiation source (e.g., an electrical source generated by electrical discharge or laser) produces an illuminating ray. This radiation is fed into the illumination system (illuminator) directly or after the adjustment device (eg, beam expander EX) has been traversed. The brightener may include an adjustment device AM that adjusts the intensity of the device in the beam set to the outer diameter of the 2012 20121717 distribution and/or the internal radial extent (usually referred to as s external (S 〇Uter) and s internal (s -inner)). In addition, it can generally include various other components such as the illuminator IN and the concentrator CO. In this way, the radiation beam PB striking the mask MA has a desired uniformity and intensity distribution in its cross section. The source LA can be in the housing of the lithographic projection device, which is often the case when the source La is a mercury lamp, but it can also be remote from the lithographic projection device. The radiation generated by it is directed into the device. When the source LA is a quasi-molecular laser, it is often the case for the latter. The radiation beam PB then intercepts the mask ma held on the mask stage τ. After the mask MA has been loosened, the radiation beam PB passes through the lens PL, and the lens PL focuses the wheel beam PB onto the target portion c of the substrate w. By means of the second positioning means PW and the interferometer IF, the substrate power can be accurately moved (e.g., to: different target positions C in the path of the bit radiation beam PB). Similarly, the first positioning means PM can be used to pinch the mask MA accurately with respect to the path of the beam (e.g., after the self-mask library mechanically operates the mask μα or during the sweep). In general, it can be moved by means of a long-stroke module (coarse positioning) and a short-circuit module, (fine positioning), and the movement of the object table MT and WT. However, in the case of a wafer stepper (as opposed to step and scan devices), the mask ¥ MT can be connected only to short-stroke actuators, or can be relatively thin. You can use (5) to align mi & M2 and substrate alignment marks ^ and μ alignment masks; and substrate W. ... Use the different η in different modes · · Firstly, enter the mode to keep the mask stage μτ, its D Μτ is basically h, and immediately project the entire 4 28 201203317 cover image (that is, single-"_" to the target Part c±). Or shifting the substrate table WT in the y direction so that different target portions are irradiated by the PB. Secondly, in the scan mode, the same situation applies, except that in the soap-"flash", the given target portion c is not exposed to the mask table MT in a given direction (so-called "scanning direction", such as month. , γ direction) is moved by speed v so that the Korean beam pB is scanned in the mask. At the same time, in the same or opposite direction, press the substrate ^, where Μ is the magnification of the lens & (typically, m = or this way can expose a relatively large target & resolution). Figure 6 illustrates an active and lightweight system 2 that can be used in the lithographic projection apparatus i of Figure 5. The viewing system 2 includes an illumination optics unit: 4. The radiation system 2 can also include a source collector module or radiation. Unit 3 Single 疋3 has a material that can be formed by discharge plasma. ^Can use gas or vapor, such as gas (Xe) gas or clock (1)... can produce very hot "to emit in the electromagnetic spectrum euv = ^ Light shot. By causing partial ionization of the discharge to collapse into the light... To: Very hot. It may be necessary to use Xe, u?$ gas or any other milk or sulphur (U _ part of the pressure to use Generated by radiation. The light emitted by the light source LA is transmitted from the source chamber 7 to the collector chamber 8 via a gas barrier: structure or "morphine" 9. The gas barrier includes the invention in Wu Guo Patent No. 6,862 The channel structure described in detail in 〇75 and 6,359,969. The collector chamber 8 contains The collector-transfer collector 丨 can be a 29 201203317 grazing incidence collector. The trajectory transmitted by the collector 10 is reflected away from the virtual source point 12 to be placed in the hopper of the collector chamber 8 a light handle spectral illuminator U. From the chamber 8, the projection beam 16 is reflected by the normal incidence reflectors U and U in the illumination optics unit 4 to a proportional reticle positioned on the scale reticle stage MT or On the mask, a patterned beam π is formed which is imaged onto the wafer platform or substrate table WT via the reflective elements 18 and 19 in the projection system PL. More components than can be present in the illumination optics unit 4 and projection system PL. The lithographic projection apparatus 1 comprises a gas supply system (10). The gas supply outlets 13A to 133 of the gas supply system 100 are positioned in the projection system and in the illumination optics unit 4, in the reflectors 13 and 14 and The reflective element 18 and the 'near. 35. If so required, the other parts of the device may equally be provided with a gas supply system. For example, the proportional reticle of the lithographic projection device and one or more sensors may be provided with a purge gas. Supply system The gas supply system _ can be positioned inside the lithographic projection device i. The gas supply system (10) can be controlled in any manner suitable for a particular implementation using any device in the i " 卜部. However, it is equally possible to supply the gas supply system (10) At least some of the portions are located in the lithography projection " section (gas mixture generator 1 2 〇). Figure 7 illustrates a specific example of the gas supply system 100. The gas inlet π 〇 is connected to supply a substantially moisture-free dry gas Gas supply means (not shown). For example, a pressurized gas supply circuit, gas red with compressed dry = (for example, nitrogen (N2), ammonia or other gases) may be used. Do not generate 3120 feed dry gas. In the gas mixture generator, 30 201203317, the dry gas can be further purified. In a specific example, the oxygen is supplied. The n ^ hole Mt, the source 12 〇 may be coupled to the net device m, the flow meter 127, the inter-125, the reducer 129, the heat exchanger (3), and the evaporator according to a specific example of the present invention. The gas f' can be supplied to the purifier device 2 via the gas inlet 1 1 , and the compressed dry air (CDA) from (3) can be supplied to the purifier device via the purge gas inlet u〇 128. _ Purified by Purification Benefit 128. The purifier 128 includes two parallel and _, each of which includes in the flow direction: an automatic coffee or coffee and eight renewable purifier devices 283 or 1284. J Dansheng Huayiyi Device 1283 夂 each has a heating element for heating and thereby separately and independently regenerate the respectiveizer devices 1283 and 1284. For example, a thousand 丨J called 5 can use a purification 5|. to manufacture gas, while regenerating another 〇 π 尺 丹 王 is 'Yu Huayi. The flow branch is in the purification. The downstream connection of the celestial parts 1283 and 1284 is s+ production reduction 198_ is connected to the shut-off valve 1 2 8 5 which can be controlled by the gas purity sensor 286. The exchanger 126 can provide a purified ":milk (CDA) at a substantially ambiguous temperature. The heat exchanger 126 extracts heat or adds heat to the conditioned gas (such as purified 眚#彳化的 CDA)' in order to achieve a suitable temperature for the specific rolling of her body. For example. /Jj; 5, in the shadow projection device, using stable processing conditions and smashing crying ^ ..... The temperature of the purified CDA is thereby stabilized to have a gas/dishness that is constant or in the pre-existing temperature range over time, -E/H. Heat exchanger i 26 can be used, sleeve ##尸γ ρ.+ is used for the temperature of the rolling body of 5 weeks to modify the vapor uptake of the vaporizable liquid from Luo, .... The purified gas can pass through the yang to 143 to 145 and pass through multiple gases 31. 201203317 = 131 '(1) Output. The air resistance (4), i44, (4) restricts the gas 罝, so that at each of the purge gas outlets 13〇, 13 and 132, the desired fixed purification 艚, ώ 疋The shape of the body and the pressure. The appropriate valve for purifying the gas at the outlet of the purge gas can be, for example, 1〇 1. It may be possible to provide an adjustable gas flow at each of the purge gas outlets (10), 131, 132 using an adjustable gas barrier. All patents, published applications and references cited herein are not taught. The entire contents of the present invention have been specifically described and described with reference to the specific examples thereof, but it is to be understood by those skilled in the art without departing from the scope of the appended claims. In the case of materials, various changes in form and detail can be made therein. [Circular Simple Description] Fig. 1A illustrates a membrane contactor that can be used as an evaporator. Fig. 1B illustrates an example of an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION One example of the invention for use of a point evaporator is shown in Figure 3A. Figure 3B is an illustration of a use of a point film contactor in accordance with an example embodiment of the present invention. A plot of the chemical solvent flow rate (hmds) versus the flow rate of the gas stream. Figure 3D includes an illustration of the chemical solvent (HMDS) evaporation efficiency versus the gas flow (N2). Correlation curve Figure 4 is an illustration of an example of an embodiment of the invention. 32 201203317 Figure 5 schematically depicts a lithography projection apparatus. Figure 6 illustrates a projection system that can be used in the lithography projection apparatus of Figure 1 Radiation system Fig. 7 illustrates a specific example of a gas supply system. [Main component symbol description] Reference symbol 1 in Fig. 1 A: Air flow 2: Evaporator/membrane contactor 3: Fiber chamber 4: Chemical solvent vapor 1 0 : Connector 20: Connector 30: Connector 40: Connector Figure 2B Reference symbol 2: Membrane contactor 2A: Shell side 2 B: Cavity side 100: Gas supply source 1 0 1 : Inlet 102: Inlet 103: Inlet 430: Chemical solvent vapor 435: Chemical solvent source 33 201203317 450: Controller 460: Controller 5 0 5: Gas-chemical solvent line mixture Reference symbol 2 in Figure 2: Using the membrane contactor 2A: Shell side 2B: Cavity side 100: gas supply 128: gas supply 130: gas outlet 1 3 1 : gas outlet 132: gas outlet 420: gas flow 430: chemical solvent 435: chemical solvent supply source 450: chemical solvent controller 460: gas controller 4 7 0 : unheated airflow 5 05 : chemical solvent-gas mixture line 5 1 2 : outer casing Reference symbol 2 in FIG. 3A: membrane contactor 2A: shell side 2B: chamber side 34 201203317 100: gas source 435: chemical solvent supply 650: substrate (for example, Wafer) 670: optional concentration sensor 680: temperature controller 690: mass flow controller 695: pressure regulator 699: flow meter reference numeral 2 in FIG. 3B: membrane contactor 420: gas flow 430: chemical solvent 505 : Chemical-solvent mixture 6 5 0 : Substrate 660 : Heating plate Reference symbol CF-3 in Fig. 3C : Data point P-2 : Data point Reference symbol 2 in Fig. 4 : Synthetic film 2A: First side of the film 2B: second side of the membrane 100: gas supply source 420: gas flow 35 201203317 430: chemical solvent 435: chemical supply source 505: gas-chemical mixture 5 1 0: substrate surface 5 20: light source 530: optical exposure 600: EXAMPLES Example 1 Reference symbol 1 in FIG. 5: Projection device 100: Gas supply system AM: Adjustment device BP: Base plate C: Target portion CO: Condenser EX: Adjustment device IF: Interferometer IL: Illumination system IN: Accumulation LA: light source Μ1: mask alignment mark M2: mask Alignment mark ΜΑ : mask ΜΤ : mask Ρ 1 : substrate alignment mark 36 201203317 P2 : substrate alignment mark PB : radiation beam PL : projection system or lens PM : positioning device PW : positioning device W : substrate WT : substrate Table X: X direction Y: Y direction Reference symbol 1 in Fig. 6: lithography projection device 2: radiation system 3: source collector module or radiation unit 4: illumination optics unit 7: source chamber 8: collector Chamber 9: Gas barrier structure I 0 : Radiation collector II: Grating spectral filter 1 2 : Virtual source point 1 3 : Incident reflector 1 4 : Incident reflector 1 6 : Projection beam 1 7 : Patterned Radiation beam 37 201203317 1 8 : Reflecting element 1 9 : Reflecting element 100 : Gas supply source 120 : Gas mixture generator 130 : Gas supply outlet 1 3 1 : Gas supply outlet 132 : Gas supply outlet 133 : Gas supply outlet LA : Jurisdiction Source MT: mask stage 0: optical axis PL: projection system WT: substrate stage reference numeral 100 in Fig. 7: gas supply system 110: gas inlet 120: gas mixture generator 125: valve 126: heat exchanger 127: Flow meter 128: purifier device 128A: flow branch 128B: Flow branch 130: Gas outlet 38 201203317 1 3 1 : Gas outlet 132: Gas outlet 143: Air resistance 144: Air resistance 145: Air resistance 1281: Automatic valve 1282: Automatic valve 1 283: Renewable purifier device 1 284 : Renewable Purifier Device 1 285: Shutoff Valve 1286: Gas Purity Sensor 39