WO2004026008A1 - プラズマ表面処理方法及びその装置 - Google Patents
プラズマ表面処理方法及びその装置 Download PDFInfo
- Publication number
- WO2004026008A1 WO2004026008A1 PCT/JP2003/011283 JP0311283W WO2004026008A1 WO 2004026008 A1 WO2004026008 A1 WO 2004026008A1 JP 0311283 W JP0311283 W JP 0311283W WO 2004026008 A1 WO2004026008 A1 WO 2004026008A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plasma
- surface treatment
- pair
- magnetic field
- pulse voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/3266—Magnetic control means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/47—Generating plasma using corona discharges
- H05H1/471—Pointed electrodes
Definitions
- the present invention is mainly intended to modify the water repellency of the surface of a resin such as polyethylene, polypropylene, or PTFE (polytetrafluoroethylene) to hydrophilic when a paint is applied or when a resin is applied thereto. It is applied to various surface treatments such as cleaning, sterilization, sterilization, and etching of organic substances attached to the surface of ceramics, metals, semiconductors, etc. More specifically, plasma generated by corona discharge The present invention relates to a corona discharge type plasma surface treatment method and apparatus for irradiating excited species such as excited molecules, radicals, and ions generated as a result of molecular dissociation to the surface of an object to perform surface treatment such as reforming. is there. Conventional technology
- the corona discharge plasma surface treatment method eliminates the use of igniting gas such as helium, argon, or hydrogen, which is necessary for the glow discharge plasma surface treatment method, thereby improving safety during use and gas consumption. It is widely used for surface treatment such as surface modification because it has the advantage of reducing the processing cost by reducing the amount.
- the tip of the discharge electrode is made to have a hollow pin shape, and an air injection port is provided at the tip, or a hollow hole is provided around the outer periphery of the discharge electrode. Insulated holders are provided, and air injection holes are provided at multiple locations surrounding the discharge electrode on the tip surface of the insulated holder.
- the discharge electrode or the insulating holder is used to inject the gas such as the air.
- high-pressure gas and other gas supply equipment such as compressors and blowers, are required, and the entire equipment is likely to become larger and more expensive.
- the irradiation amount and irradiation area of the excited species can be adjusted by adjusting the gas injection pressure and injection angle, the adjustment range is naturally limited.In particular, the excited species can be averaged over the entire surface of the workpiece. Irradiating it evenly is difficult both structurally and technically.
- the present invention has been made in view of the above circumstances, and can increase the irradiation amount and irradiation area of the excited species on the surface of the object to be processed without requiring gas injection of air or the like, and can uniformly cover the entire surface.
- An object of the present invention is to provide a plasma surface treatment method and a plasma surface treatment method capable of irradiating and capable of suppressing the loss of effective excited species to achieve remarkable improvement in treatment performance and treatment efficiency. Disclosure of the invention
- a plasma surface treatment method comprises applying a pulse voltage to a pair of opposed discharge electrodes to generate corona discharge between the tips of the discharge electrodes. Excitation including plasma generated by this corona discharge
- a magnetic field is formed where the charged particles in the plasma are present near the tips of the pair of discharge electrodes, and the plasma is contained by the force that pushes the charged particles moving in the magnetic field.
- the method is characterized in that the excited species is irradiated toward the surface of the workpiece.
- the plasma surface treatment apparatus applies a pulse voltage to a pair of opposed discharge electrodes to generate a corona discharge between the tips of the discharge electrodes.
- a plasma surface treatment apparatus configured to perform surface treatment by irradiating a surface of an object to be treated with excited species including plasma to be generated, wherein a charge in the plasma is generated near a tip of the pair of discharge electrodes.
- a magnetic field is formed where particles exist, and an extruding force can be applied to the charged particles moving in the magnetic field so as to irradiate an exciting species including plasma toward the surface of the workpiece.
- a magnetic field forming means is provided.
- a pulse voltage is applied to the pair of discharge electrodes to generate a corona discharge between the tips of the two electrodes.
- excited species including plasma generated by the corona discharge are present in the magnetic field, the force exerted on the charged particles in the plasma moving in the magnetic field is pushed out of the magnetic field, that is, the Lorentz force Acts.
- the Lorentz force applies a force to the excited species including plasma in a direction perpendicular to the magnetic field, so that the excited species can be directed to the surface of the workpiece without injecting a gas such as high-speed high-pressure air. It is possible to irradiate almost uniformly over a wide area.
- the pulse voltage applied to the discharge electrode may be a rectangular wave pulse voltage
- any one of a pulse voltage composed of a plurality of pulsating waves obtained by half-wave rectification or full-wave rectification of an AC voltage may be used.
- a special pulse voltage generation power supply is not required, and it is composed of a combination of a commercial or ultrasonic AC power supply and a rectifier such as a diode.
- the magnetic field forming means in the corona discharge type plasma surface treatment apparatus includes a permanent magnet, a pair of magnetic bodies, and a pair of pole pieces forming a gap between end faces.
- an electromagnet connected to a DC power supply, a pair of magnetic bodies, and a pair of pole pieces forming a gap between end faces, as described in claim 9. Is also good.
- permanent magnets production costs can be reduced and power consumption can be reduced.
- an electromagnet is used, the production cost and power consumption increase compared to the case where a permanent magnet is used.
- the irradiation power and irradiation diffusion range can be easily and arbitrarily controlled according to the surface morphology of the object to be processed, and the shape applicability to the object can be expanded, and the processing performance and processing efficiency can be improved. Can be improved.
- the reactive gas such as argon, nitrogen, or carbon dioxide gas, but as described in claims 4 and 10, the reactive gas can be used at or near atmospheric pressure. Introduced between the pair of discharge electrodes below to excite the excited gas flow including plasma By irradiating with the extrusion force (Lorentz force) received from the field, it can be used for various surface treatments.
- a reactive gas such as argon, nitrogen, or carbon dioxide gas
- FIG. 1 is a partially omitted longitudinal front view showing a first embodiment of a plasma surface treatment apparatus according to the present invention.
- FIG. 2 is a longitudinal sectional side view taken along line AA of FIG.
- FIG. 3 is a configuration diagram of a half-wave rectifier circuit which is an example of a power supply device in the above processing device.
- FIG. 4 is a waveform diagram of a pulsating voltage rectified by the half-wave rectifier circuit.
- FIG. 5 is a configuration diagram of a full-wave rectifier circuit as another example of the power supply device in the above processing device.
- FIG. 6 is a waveform diagram of a pulsating voltage rectified by the full-wave rectifier circuit.
- FIG. 7 is a partially omitted vertical front view showing a second embodiment of the plasma surface treatment apparatus according to the present invention.
- FIG. 8 is a vertical side view taken along the line BB of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a partially omitted longitudinal front view showing a first embodiment of a plasma surface treatment apparatus according to the present invention
- FIG. 2 is a longitudinal side view taken along line AA of FIG.
- the plasma surface treatment apparatus according to the first embodiment is manufactured by processing a metal material such as stainless steel into a substantially L-shape (+), (1) a pair of discharge electrodes 1, 1 with sharp-pointed portions, That is, the two tip portions 1 a, 1 a are sandwiched and fixed between the electrode holders 1, 2 made of an insulator in a state where they face each other, and a pulse is applied to the pair of discharge electrodes 1, 1.
- a power supply device 3 (described later) for applying a pulse voltage composed of a plurality of pulsating waves obtained by half-wave rectification or full-wave rectification of an AC voltage as a voltage is connected, and a pair of discharge electrodes is provided from the power supply device 3.
- a pulse voltage By applying a pulse voltage to the electrodes 1 and 1, a corona discharge is generated between the tips 1a and 1a of the electrodes 1 and 1, and the corona discharge generates excited species including rib plasma. Have been.
- the power supply device 3 is a half-wave rectifier circuit using an AC power supply 10 of 50 Hz to 100 kHz, a step-up transformer 11, and one rectifying diode D 1.
- an AC power supply 10 of 50 Hz to 100 kHz
- a step-up transformer 11 and one rectifying diode D 1.
- the ON time and OFF time of each pulse are defined as one cycle T, and a pulse frequency (1 XT) of 10 to 200 Hz and a pulse duty of 10 to 100% are generated to generate a positive pulse voltage. 5 or as shown in Fig.
- the pulse frequency is converted into a DC pulsating wave having a peak value of 5 to 15 KV, and the sum of the ON time and OFF time of the plurality of converted pulsating waves is defined as one cycle T.
- Any of Hz and those configured to generate a positive pulse voltage with a pulse duty of 10% to 100% is used.
- a positive pulse voltage is used here, it goes without saying that a negative pulse voltage may be used.
- Magnetic field forming means for forming a magnetic field along a horizontal plane in which charged particles in the plasma generated by corona discharge are located immediately adjacent to the tips 1 a, 1 a of the pair of discharge electrodes 1, 1.
- the magnetic field forming means includes a permanent magnet 4 disposed above a base end of the discharge electrodes 1 and 1 and a tip 1 a of the pair of discharge electrodes 1 and 1 connected to the N and S poles of the permanent magnet 4.
- a pair of soft iron or other soft A magnetic field is formed between the magnetic bodies 5, 5 and the end faces 6a, 6a which are integrally connected to the tips of the soft magnetic bodies 5, 5 and oppose each other across the pointed end 1a, 1a of the discharge electrode 1,.
- a pair of pole pieces 6, 6 made of pure iron or the like forming a gap 7 for use in the magnetic field forming means.
- the gap 7 is formed between the end faces 6 a, 6 a of the pole pieces 6, 6 in the magnetic field forming means.
- an extruding force that is, a Lorentz force acts on the charged particles, so that excited species including the plasma are actuated as shown by arrows X in FIGS. 1 and 2. It is configured to be irradiated toward the surface W f of the workpiece W.
- the Lorentz force F is as follows, assuming that the particle charge is Q, the velocity is v, and the magnetic flux density of the gap between the pole piece end faces is B.
- the pair of soft magnetic members 5, 5 and the electrode holders 2, 2 are fixedly connected to each other via insulating spacers 8, 8, whereby the magnetic field forming means and the pair of discharge electrodes 1, 2 are connected. , And 1 are integrated.
- the pole pieces 6 and 6 are fitted with protective insulating covers 9 and 9 made of ceramics or the like.
- the pole pieces connected to the N and S poles of the permanent magnet 4 via the soft magnetic materials 5 and 5 are used.
- a magnetic field (magnetic field) composed of effective magnetic flux and leakage magnetic flux is formed in the gap 7 between the end faces 6a, 6a of 6, 6 and in this state, the above-described half-wave rectifier circuit or full-wave rectifier circuit is used.
- a positive or negative pulse voltage having a frequency of 10 to 200 Hz is applied to the pair of discharge electrodes 1, 1 from the power supply 3, and a voltage is applied between the tips 1 a, 1 a of both electrodes 1, 1.
- Excited species including plasma are given a force in the direction of arrow X perpendicular to the magnetic field by the above-mentioned Lorentz force F that the charged particles receive from the magnetic field.
- the excited species including the plasma are urged toward the surface W f of the workpiece W and are almost uniformly irradiated over a wide area without injecting a gas such as a high-pressure high-speed air. It is possible to do so.
- a positive or negative pulse voltage composed of a plurality of pulsating waves obtained by half-wave rectification or full-wave rectification of an AC voltage is used for a pair of discharge electrodes 1, 1. Therefore, there is no need for a special pulse voltage generation power supply such as a multivibrator ⁇ Schmitt 'trigger circuit or a blocking oscillator, and a simple combination of a commercial AC power supply or an ultrasonic power supply and a rectifier such as a diode. It is possible to apply a pulse voltage of a desired period and duty while using a simple power supply device, and further, by using a permanent magnet 4 with low manufacturing cost and no power consumption as a magnetic field forming means. Overall introduction cost and running cost can be reduced.
- FIG. 7 is a partially omitted longitudinal front view showing a second embodiment of the plasma surface treatment apparatus according to the present invention
- FIG. 8 is a longitudinal side view taken along line BB of FIG.
- a coil 13 is wound around an iron core 12 such as pure iron, for example, instead of the permanent magnet 4 of the first embodiment constituting the magnetic field forming means.
- the direct current Since it uses an electromagnet 15 connected to a power supply 14 and the other configuration is the same as that of the first embodiment, the same reference numerals are given to the corresponding members and parts, and a detailed description thereof is given. Is omitted.
- the charged particles in the plasma generated by the corona discharge exist in the magnetic field and are received from the magnetic field.
- the Lorentz force F gives a force in the direction of arrow X perpendicular to the magnetic field to the excited species including the plasma, thereby exposing the excited species including the plasma without jetting gas such as high-pressure high-speed air.
- jetting gas such as high-pressure high-speed air.
- the surface Wf of the surface By irradiating the surface Wf of the surface, it is possible to suppress the scattering of the excited species due to the rebound of the jet gas such as high-pressure high-speed air, etc., and the specified surface treatment performance and treatment efficiency are significantly improved. I can do it.
- the irradiation power and irradiation diffusion range of the excited species including, can be easily and arbitrarily controlled according to the surface morphology, etc. of the workpiece W, and the shape applicability to the workpiece W can be expanded. The processing performance and processing efficiency can be further improved.
- the excited species including the plasma generated by the corona discharge is treated by the Lorentz force acting on the charged particles in the plasma. Since the irradiation can be directed toward the surface, the use of gas such as high-pressure and high-speed air, which has been conventionally used for the irradiation of excited species, can be omitted, and the discharge electrode and insulating holder can be finely worked. There is no need to install high-pressure gas supply equipment such as compressors and blowers, etc., making it possible to reduce the size and cost of the entire system.
- the magnetic flux density of the gap between the pole piece end faces is adjusted to adjust the Lorentz force.
- the irradiation power and irradiation diffusion range of excited species including plasma can be easily and arbitrarily controlled according to the surface morphology of the object to be processed, and the shape applicability to the object to be processed can be expanded. Furthermore, processing performance and processing efficiency can be further improved.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma Technology (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03795290A EP1480499A4 (en) | 2002-09-13 | 2003-09-04 | PROCESS FOR TREATING PLASMA SURFACE AND APPARATUS THEREFOR |
| US10/504,828 US20050121305A1 (en) | 2002-09-13 | 2003-09-04 | Plasma surface treating method and apparatus therefor |
| KR1020047012880A KR100661197B1 (ko) | 2002-09-13 | 2003-09-04 | 플라즈마표면처리방법 및 그 장치 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-267877 | 2002-09-13 | ||
| JP2002267877 | 2002-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004026008A1 true WO2004026008A1 (ja) | 2004-03-25 |
Family
ID=31986730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/011283 Ceased WO2004026008A1 (ja) | 2002-09-13 | 2003-09-04 | プラズマ表面処理方法及びその装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20050121305A1 (ja) |
| EP (1) | EP1480499A4 (ja) |
| KR (1) | KR100661197B1 (ja) |
| CN (1) | CN1311717C (ja) |
| WO (1) | WO2004026008A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005166458A (ja) * | 2003-12-03 | 2005-06-23 | Fujisawa Pharmaceut Co Ltd | プラズマ表面処理方法及びその装置 |
| CN102395691A (zh) * | 2009-04-14 | 2012-03-28 | 株式会社达文希斯 | 等离子表面处理装置及方法 |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005235448A (ja) * | 2004-02-17 | 2005-09-02 | Pearl Kogyo Co Ltd | プラズマ処理方法及びその装置 |
| US7323080B2 (en) | 2004-05-04 | 2008-01-29 | Semes Co., Ltd. | Apparatus for treating substrate |
| CN103502420B (zh) | 2011-04-15 | 2020-02-04 | 诺维信公司 | 生产啤酒麦汁的方法 |
| CN102785376B (zh) * | 2012-08-14 | 2016-03-30 | 明尼苏达矿业制造特殊材料(上海)有限公司 | 聚乙烯表面处理方法 |
| CN103495217B (zh) * | 2013-10-22 | 2016-03-16 | 威海威高血液净化制品有限公司 | 一种聚丙烯材质外壳的血液透析器及其制造方法 |
| CN106470521A (zh) * | 2015-08-14 | 2017-03-01 | 吴勇峰 | 大气压空气中磁控式锥形针阵列弥散放电系统 |
| CN111286066A (zh) * | 2020-02-28 | 2020-06-16 | 广州洁特生物过滤股份有限公司 | 基材亲水表面的制备工艺以及三维细胞培养支架 |
| JP2022080674A (ja) * | 2020-11-18 | 2022-05-30 | 東京エレクトロン株式会社 | プラズマ処理装置 |
| CN112658446B (zh) * | 2020-12-10 | 2023-04-07 | 中国科学院宁波材料技术与工程研究所 | 一种激光诱导等离子体微细加工装置及方法 |
| CN114507841A (zh) * | 2021-12-29 | 2022-05-17 | 马鞍山市鑫龙特钢有限公司 | 一种碳素钢制件多元合金共渗工艺 |
| CN114954920B (zh) * | 2022-03-14 | 2024-06-28 | 南京航空航天大学 | 气流流动方向可变的电弧放电激励器装置及工作方法 |
| KR102769443B1 (ko) * | 2022-11-03 | 2025-02-19 | 주식회사 플라사드 | 활성종을 선택적으로 제어할 수 있는 플라즈마 소스 시스템 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06151094A (ja) * | 1992-11-11 | 1994-05-31 | Mitsubishi Heavy Ind Ltd | プラズマ生成加速装置 |
| JPH07118419A (ja) * | 1993-10-22 | 1995-05-09 | Olympus Optical Co Ltd | 被処理物内面へのコロナ放電処理方法 |
| JPH07211657A (ja) * | 1994-01-14 | 1995-08-11 | Semiconductor Energy Lab Co Ltd | 被膜形成装置及び被膜形成方法 |
| JPH08500699A (ja) * | 1993-06-21 | 1996-01-23 | ソシエテ・ユーロペーヌ・ドゥ・プロプルシオン | 閉鎖電子ドリフトを持つ長さの短いプラズマ加速器 |
| JPH10270428A (ja) * | 1997-03-27 | 1998-10-09 | Mitsubishi Electric Corp | プラズマ処理装置 |
| JP2002115174A (ja) * | 2000-10-04 | 2002-04-19 | Takuzo Iwata | 繊維物質の活性化方法及びその装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0817171B2 (ja) * | 1990-12-31 | 1996-02-21 | 株式会社半導体エネルギー研究所 | プラズマ発生装置およびそれを用いたエッチング方法 |
| US5578130A (en) * | 1990-12-12 | 1996-11-26 | Semiconductor Energy Laboratory Co., Ltd. | Apparatus and method for depositing a film |
| CN1119923C (zh) * | 1997-07-07 | 2003-08-27 | 中国科学院力学研究所 | 磁驱动高压非平衡等离子体产生方法及装置 |
| JP2000058223A (ja) * | 1998-08-12 | 2000-02-25 | Nippon Paint Co Ltd | 表面改質処理方法及び表面改質処理装置 |
-
2003
- 2003-09-04 EP EP03795290A patent/EP1480499A4/en not_active Withdrawn
- 2003-09-04 CN CNB038048051A patent/CN1311717C/zh not_active Expired - Fee Related
- 2003-09-04 KR KR1020047012880A patent/KR100661197B1/ko not_active Expired - Fee Related
- 2003-09-04 US US10/504,828 patent/US20050121305A1/en not_active Abandoned
- 2003-09-04 WO PCT/JP2003/011283 patent/WO2004026008A1/ja not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06151094A (ja) * | 1992-11-11 | 1994-05-31 | Mitsubishi Heavy Ind Ltd | プラズマ生成加速装置 |
| JPH08500699A (ja) * | 1993-06-21 | 1996-01-23 | ソシエテ・ユーロペーヌ・ドゥ・プロプルシオン | 閉鎖電子ドリフトを持つ長さの短いプラズマ加速器 |
| JPH07118419A (ja) * | 1993-10-22 | 1995-05-09 | Olympus Optical Co Ltd | 被処理物内面へのコロナ放電処理方法 |
| JPH07211657A (ja) * | 1994-01-14 | 1995-08-11 | Semiconductor Energy Lab Co Ltd | 被膜形成装置及び被膜形成方法 |
| JPH10270428A (ja) * | 1997-03-27 | 1998-10-09 | Mitsubishi Electric Corp | プラズマ処理装置 |
| JP2002115174A (ja) * | 2000-10-04 | 2002-04-19 | Takuzo Iwata | 繊維物質の活性化方法及びその装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1480499A4 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005166458A (ja) * | 2003-12-03 | 2005-06-23 | Fujisawa Pharmaceut Co Ltd | プラズマ表面処理方法及びその装置 |
| CN102395691A (zh) * | 2009-04-14 | 2012-03-28 | 株式会社达文希斯 | 等离子表面处理装置及方法 |
| CN102395691B (zh) * | 2009-04-14 | 2014-08-06 | 株式会社达文希斯 | 等离子表面处理装置及方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1311717C (zh) | 2007-04-18 |
| KR100661197B1 (ko) | 2006-12-22 |
| EP1480499A1 (en) | 2004-11-24 |
| CN1640211A (zh) | 2005-07-13 |
| KR20040088507A (ko) | 2004-10-16 |
| EP1480499A4 (en) | 2008-06-04 |
| US20050121305A1 (en) | 2005-06-09 |
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