JP3722813B2 - 埋め込み配線構造の形成方法 - Google Patents
埋め込み配線構造の形成方法 Download PDFInfo
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- JP3722813B2 JP3722813B2 JP2003271803A JP2003271803A JP3722813B2 JP 3722813 B2 JP3722813 B2 JP 3722813B2 JP 2003271803 A JP2003271803 A JP 2003271803A JP 2003271803 A JP2003271803 A JP 2003271803A JP 3722813 B2 JP3722813 B2 JP 3722813B2
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- 238000000034 method Methods 0.000 title claims description 43
- 238000005498 polishing Methods 0.000 claims description 28
- 238000004544 sputter deposition Methods 0.000 claims description 20
- 230000004888 barrier function Effects 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 10
- 238000000151 deposition Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000005121 nitriding Methods 0.000 claims description 2
- 229910008482 TiSiN Inorganic materials 0.000 claims 3
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 claims 3
- 239000010949 copper Substances 0.000 description 59
- 239000007789 gas Substances 0.000 description 13
- 238000005530 etching Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- 238000009713 electroplating Methods 0.000 description 7
- 238000007747 plating Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000001020 plasma etching Methods 0.000 description 5
- 238000011946 reduction process Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004341 Octafluorocyclobutane Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- BCCOBQSFUDVTJQ-UHFFFAOYSA-N octafluorocyclobutane Chemical compound FC1(F)C(F)(F)C(F)(F)C1(F)F BCCOBQSFUDVTJQ-UHFFFAOYSA-N 0.000 description 1
- 235000019407 octafluorocyclobutane Nutrition 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/7685—Barrier, adhesion or liner layers the layer covering a conductive structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/7684—Smoothing; Planarisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76867—Barrier, adhesion or liner layers characterized by methods of formation other than PVD, CVD or deposition from a liquids
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Description
図1(a)から(f)までは、本発明の第1の実施形態に係る埋め込み配線構造の形成方法における各工程を概略的に示す断面図である。
図2(a)から(f)までは、本発明の第2の実施形態に係る埋め込み配線構造の形成方法における各工程を概略的に示す断面図である。
101,201 絶縁層、
102,202 配線用の溝、
103,203 バリア層、
104,204 Cuシード層、
105,205 Cu層、
106,206 酸化層、
107 キャップ層(TiSiN膜)、
207 キャップ層(Cuの窒化膜)、
108,208 配線層。
Claims (9)
- 半導体基板上の絶縁層に形成された溝を埋め尽くすように、前記絶縁層上にCuを主成分とする導電層を形成する工程と、
前記導電層表面の酸化により生成された酸化層を除去する工程と、
前記導電層上に前記酸化層よりも機械的に脆弱な材料からなるキャップ層を形成する工程と、
化学的機械研磨法を用いて、前記溝内に前記導電層を残すように、前記キャップ層、及び、前記導電層の一部を除去する工程と
を有することを特徴とする埋め込み配線構造の形成方法。 - 前記キャップ層を形成する工程が、前記導電層表面に窒化、ホウ化、硫化、及びリン化のいずれかの処理を施すことによって、窒化層、ホウ化層、硫化層、及びリン化層のいずれかを形成する工程を含むことを特徴とする請求項1に記載の埋め込み配線構造の形成方法。
- 半導体基板上の絶縁層に形成された溝を埋め尽くすように、前記絶縁層上にCuを主成分とする導電層を形成する工程と、
前記導電層表面の酸化により生成された酸化層を除去する工程と、
前記導電層上にTiSiN膜を形成する工程と、
化学的機械研磨法を用いて、前記溝内に前記導電層を残すように、前記TiSiN膜、及び、前記導電層の一部を除去する工程と
を有することを特徴とする埋め込み配線構造の形成方法。 - 前記酸化層を除去する工程と前記TiSiN膜を形成する工程とを同一チャンバー内で行うことを特徴とする請求項3に記載の埋め込み配線構造の形成方法。
- 前記導電層を形成する工程の前に、前記絶縁層上に、前記絶縁層と前記導電層との間に介在させるためのバリア層を形成する工程をさらに有することを特徴とする請求項1から4までのいずれかに記載の埋め込み配線構造の形成方法。
- 前記導電層を形成する工程が、Cuを主成分とするシード層を形成する工程と、前記シード層上にCuを主成分とする導電性材料を堆積させる工程とを含むことを特徴とする請求項1から5までのいずれかに記載の埋め込み配線構造の形成方法。
- 前記導電層を100℃から350℃までの範囲内の温度で熱処理する工程をさらに有することを特徴とする請求項1から6までのいずれかに記載の埋め込み配線構造の形成方法。
- 前記酸化層を除去する工程が、前記酸化膜を還元処理する工程を含むことを特徴とする請求項1又は3のいずれかに記載の埋め込み配線構造の形成方法。
- 前記酸化層を除去する工程が、前記酸化膜を不活性ガスによるスパッタにより除去する工程を含むことを特徴とする請求項1又は3のいずれかに記載の埋め込み配線構造の形成方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003271803A JP3722813B2 (ja) | 2003-07-08 | 2003-07-08 | 埋め込み配線構造の形成方法 |
| US10/765,155 US6903020B2 (en) | 2003-07-08 | 2004-01-28 | Method of forming buried wiring in semiconductor device |
| US11/109,634 US6967157B2 (en) | 2003-07-08 | 2005-04-20 | Method of forming buried wiring in semiconductor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003271803A JP3722813B2 (ja) | 2003-07-08 | 2003-07-08 | 埋め込み配線構造の形成方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005033050A JP2005033050A (ja) | 2005-02-03 |
| JP3722813B2 true JP3722813B2 (ja) | 2005-11-30 |
Family
ID=33562673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003271803A Expired - Fee Related JP3722813B2 (ja) | 2003-07-08 | 2003-07-08 | 埋め込み配線構造の形成方法 |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US6903020B2 (ja) |
| JP (1) | JP3722813B2 (ja) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100712818B1 (ko) * | 2005-12-16 | 2007-04-30 | 동부일렉트로닉스 주식회사 | 구리 배선 형성 방법 |
| KR100778866B1 (ko) * | 2006-07-24 | 2007-11-22 | 동부일렉트로닉스 주식회사 | 티아이에스아이엔을 이용한 금속 확산 방지막 형성 방법 |
| JP5362500B2 (ja) * | 2009-09-18 | 2013-12-11 | 富士通株式会社 | 半導体装置の製造方法 |
| US8659155B2 (en) * | 2009-11-05 | 2014-02-25 | Taiwan Semiconductor Manufacturing Company, Ltd. | Mechanisms for forming copper pillar bumps |
| US9012766B2 (en) | 2009-11-12 | 2015-04-21 | Silevo, Inc. | Aluminum grid as backside conductor on epitaxial silicon thin film solar cells |
| US20110277825A1 (en) * | 2010-05-14 | 2011-11-17 | Sierra Solar Power, Inc. | Solar cell with metal grid fabricated by electroplating |
| US9214576B2 (en) | 2010-06-09 | 2015-12-15 | Solarcity Corporation | Transparent conducting oxide for photovoltaic devices |
| US9773928B2 (en) | 2010-09-10 | 2017-09-26 | Tesla, Inc. | Solar cell with electroplated metal grid |
| US9800053B2 (en) | 2010-10-08 | 2017-10-24 | Tesla, Inc. | Solar panels with integrated cell-level MPPT devices |
| US9054256B2 (en) | 2011-06-02 | 2015-06-09 | Solarcity Corporation | Tunneling-junction solar cell with copper grid for concentrated photovoltaic application |
| US9865754B2 (en) | 2012-10-10 | 2018-01-09 | Tesla, Inc. | Hole collectors for silicon photovoltaic cells |
| US9412884B2 (en) | 2013-01-11 | 2016-08-09 | Solarcity Corporation | Module fabrication of solar cells with low resistivity electrodes |
| US9219174B2 (en) | 2013-01-11 | 2015-12-22 | Solarcity Corporation | Module fabrication of solar cells with low resistivity electrodes |
| US10074755B2 (en) | 2013-01-11 | 2018-09-11 | Tesla, Inc. | High efficiency solar panel |
| US10309012B2 (en) | 2014-07-03 | 2019-06-04 | Tesla, Inc. | Wafer carrier for reducing contamination from carbon particles and outgassing |
| JP6450560B2 (ja) * | 2014-10-24 | 2019-01-09 | 新日本無線株式会社 | 半導体装置およびその製造方法 |
| US9899546B2 (en) | 2014-12-05 | 2018-02-20 | Tesla, Inc. | Photovoltaic cells with electrodes adapted to house conductive paste |
| US9947822B2 (en) | 2015-02-02 | 2018-04-17 | Tesla, Inc. | Bifacial photovoltaic module using heterojunction solar cells |
| US9761744B2 (en) | 2015-10-22 | 2017-09-12 | Tesla, Inc. | System and method for manufacturing photovoltaic structures with a metal seed layer |
| US9842956B2 (en) | 2015-12-21 | 2017-12-12 | Tesla, Inc. | System and method for mass-production of high-efficiency photovoltaic structures |
| US10115838B2 (en) | 2016-04-19 | 2018-10-30 | Tesla, Inc. | Photovoltaic structures with interlocking busbars |
| US10672919B2 (en) | 2017-09-19 | 2020-06-02 | Tesla, Inc. | Moisture-resistant solar cells for solar roof tiles |
| US11190128B2 (en) | 2018-02-27 | 2021-11-30 | Tesla, Inc. | Parallel-connected solar roof tile modules |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000003912A (ja) | 1998-06-16 | 2000-01-07 | Hitachi Ltd | 半導体装置の製造方法および半導体装置 |
| US6800554B2 (en) * | 2000-12-18 | 2004-10-05 | Intel Corporation | Copper alloys for interconnections having improved electromigration characteristics and methods of making same |
| JP4535629B2 (ja) * | 2001-02-21 | 2010-09-01 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
| JP2002359244A (ja) | 2001-05-31 | 2002-12-13 | Sony Corp | 半導体装置の製造方法 |
| US6670274B1 (en) * | 2002-10-01 | 2003-12-30 | Taiwan Semiconductor Manufacturing Company | Method of forming a copper damascene structure comprising a recessed copper-oxide-free initial copper structure |
| US7101790B2 (en) * | 2003-03-28 | 2006-09-05 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of forming a robust copper interconnect by dilute metal doping |
-
2003
- 2003-07-08 JP JP2003271803A patent/JP3722813B2/ja not_active Expired - Fee Related
-
2004
- 2004-01-28 US US10/765,155 patent/US6903020B2/en not_active Expired - Fee Related
-
2005
- 2005-04-20 US US11/109,634 patent/US6967157B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005033050A (ja) | 2005-02-03 |
| US20050186795A1 (en) | 2005-08-25 |
| US6903020B2 (en) | 2005-06-07 |
| US6967157B2 (en) | 2005-11-22 |
| US20050009319A1 (en) | 2005-01-13 |
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