JP2010513720A - コバルト合金の無電解堆積 - Google Patents
コバルト合金の無電解堆積 Download PDFInfo
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- JP2010513720A JP2010513720A JP2009542806A JP2009542806A JP2010513720A JP 2010513720 A JP2010513720 A JP 2010513720A JP 2009542806 A JP2009542806 A JP 2009542806A JP 2009542806 A JP2009542806 A JP 2009542806A JP 2010513720 A JP2010513720 A JP 2010513720A
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- cobalt
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
【解決手段】 銅表面の上にコバルト合金層を無電解堆積させるためのシステム及び方法は、低pHによって特徴付けられる溶液を含む。この溶液は、例えば、コバルト(II)塩と、少なくとも2つのアミン基を含む錯化剤と、pHを7.0未満に調整するように構成されるpH調整剤と、還元剤とを含んでよい。幾つかの実施形態では、コバルト合金は、集積回路において、銅表面と誘電体との間の接合特性及び銅拡散特性を助長するように構成される。
【選択図】図2
Description
コバルト塩と、
コバルト塩を使用して銅の上にコバルト層を堆積させるように構成される錯化剤と、
溶液のpHを7.0未満に調整するように構成されるpH調整剤と、
を含む溶液を含む。
銅の上にコバルト層を堆積させるように構成される溶液であって、pHが7.0未満であり、コバルト(II)塩と、少なくとも2つのアミン基を含む錯化剤と、pHを7.0未満に調整するように構成されるpH調整剤と、を含む溶液を調製する工程と、
溶液の中に銅表面を浸す工程と、
溶液を使用して銅表面の上にコバルト合金層を堆積させる工程と、
を含む方法を含む。
Claims (26)
- 溶液であって、
コバルト塩と、
前記コバルト塩を使用して銅の上にコバルト層を堆積させるように構成される錯化剤と、
前記溶液のpHを7.0未満に調整するように構成されるpH調整剤と
を備える溶液。 - 請求項1に記載の溶液であって、更に、
粒界スタッファを備える溶液。 - 請求項1に記載の溶液であって、更に、
小粒子の成長を増進するように構成される添加剤、小塊成長抑制剤、又は界面活性剤を備える溶液。 - 請求項1に記載の溶液であって、
前記溶液は、6.0未満のpHを有する溶液。 - 請求項1に記載の溶液であって、
前記コバルト塩は、コバルト(II)塩を含む溶液。 - 請求項1に記載の溶液であって、
前記コバルト塩は、アミン基を含む溶液。 - 請求項1に記載の溶液であって、
前記コバルト塩は、[Co(II)[アミン]1〜3]2+[(1つ又は2つ以上の)アニオン]2-の形態でアミン基を含む溶液。 - 請求項1に記載の溶液であって、
前記コバルト塩は、[Co(En)]SO4、[Co(En)2]SO4、[Co(En)3]SO4、[Co(Dien)](NO3)2、又は[Co(Dien)2](NO3)2を含む溶液。 - 請求項1に記載の溶液であって、
前記錯化剤は、アミン化合物を含む溶液。 - 請求項9に記載の溶液であって、
前記アミン化合物は、ジアミンを含む溶液。 - 請求項9に記載の溶液であって、
前記アミン化合物は、トリアミンを含む溶液。 - 請求項9に記載の溶液であって、
前記アミン化合物は、R″−NH−R′−R−NH−R''' の形態のポリアミンを含む溶液。 - 請求項9に記載の溶液であって、
前記アミン化合物は、R″−NH−R′−NH−R−NH−R''' の形態のポリアミンを含む溶液。 - 請求項9に記載の溶液であって、
前記アミン化合物は、R''' −NH−[R′−NH]n−[R′−NH]m−R−NH−R″″の形態のポリアミンを含む溶液。 - 請求項9に記載の溶液であって、
前記アミン化合物は、芳香族である溶液。 - 請求項1に記載の溶液であって、
前記還元剤は、DMABを含む溶液。 - 請求項1に記載の溶液であって、
前記溶液は、脱酸素化された液を使用して調製される溶液。 - 請求項1に記載の溶液であって、更に、
還元剤を備える溶液。 - 銅の上にコバルト層を堆積させるように構成される溶液であって、pHが7.0未満であり、コバルト(II)塩と、少なくとも2つのアミン基を含む錯化剤と、前記pHを7.0未満に調整するように構成されるpH調整剤と、を含む溶液を調製する工程と、
前記溶液の中に銅表面を浸す工程と、
前記溶液を使用して前記銅表面の上にコバルト合金層を堆積させる工程と
を備えた方法。 - 請求項19に記載の方法であって、更に、
前記コバルト合金層の上に誘電体層を堆積させる工程を備えた方法。 - 請求項19に記載の方法であって、
前記溶液は、6.0未満のpHを有する方法。 - 請求項19に記載の方法であって、
前記コバルト塩は、コバルト(II)塩を含む方法。 - 請求項19に記載の方法であって、
前記コバルト塩は、アミン基を含む方法。 - 請求項19に記載の方法であって、
前記錯化剤は、アミン化合物を含む方法。 - 請求項19に記載の方法であって、
前記溶液は、還元剤を更に含む方法。 - 請求項19に記載の方法を使用して製造される半導体デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/644,697 US7794530B2 (en) | 2006-12-22 | 2006-12-22 | Electroless deposition of cobalt alloys |
US11/644,697 | 2006-12-22 | ||
PCT/US2007/025460 WO2008085256A2 (en) | 2006-12-22 | 2007-12-12 | Electroless deposition of cobalt alloys |
Publications (2)
Publication Number | Publication Date |
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JP2010513720A true JP2010513720A (ja) | 2010-04-30 |
JP5676880B2 JP5676880B2 (ja) | 2015-02-25 |
Family
ID=39543231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009542806A Expired - Fee Related JP5676880B2 (ja) | 2006-12-22 | 2007-12-12 | コバルト合金の無電解堆積 |
Country Status (7)
Country | Link |
---|---|
US (2) | US7794530B2 (ja) |
JP (1) | JP5676880B2 (ja) |
KR (1) | KR101518519B1 (ja) |
CN (1) | CN101616747B (ja) |
SG (1) | SG177913A1 (ja) |
TW (1) | TWI447260B (ja) |
WO (1) | WO2008085256A2 (ja) |
Families Citing this family (12)
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US20140199497A1 (en) * | 2013-01-14 | 2014-07-17 | Tighe A. Spurlin | Methods for reducing metal oxide surfaces to modified metal surfaces |
US9865501B2 (en) | 2013-03-06 | 2018-01-09 | Lam Research Corporation | Method and apparatus for remote plasma treatment for reducing metal oxides on a metal seed layer |
US9496145B2 (en) | 2014-03-19 | 2016-11-15 | Applied Materials, Inc. | Electrochemical plating methods |
US9469912B2 (en) | 2014-04-21 | 2016-10-18 | Lam Research Corporation | Pretreatment method for photoresist wafer processing |
US9472377B2 (en) | 2014-10-17 | 2016-10-18 | Lam Research Corporation | Method and apparatus for characterizing metal oxide reduction |
US9758896B2 (en) | 2015-02-12 | 2017-09-12 | Applied Materials, Inc. | Forming cobalt interconnections on a substrate |
US9865673B2 (en) | 2015-03-24 | 2018-01-09 | International Business Machines Corporation | High resistivity soft magnetic material for miniaturized power converter |
JP6998945B2 (ja) | 2016-10-02 | 2022-01-18 | アプライド マテリアルズ インコーポレイテッド | ルテニウムライナーと共に銅のエレクトロマイグレーションを改善するドープされた選択的な金属キャップ |
US10443146B2 (en) | 2017-03-30 | 2019-10-15 | Lam Research Corporation | Monitoring surface oxide on seed layers during electroplating |
US10211052B1 (en) | 2017-09-22 | 2019-02-19 | Lam Research Corporation | Systems and methods for fabrication of a redistribution layer to avoid etching of the layer |
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2006
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2007
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- 2007-12-12 SG SG2011095106A patent/SG177913A1/en unknown
- 2007-12-12 CN CN2007800517393A patent/CN101616747B/zh active Active
- 2007-12-12 WO PCT/US2007/025460 patent/WO2008085256A2/en active Application Filing
- 2007-12-12 KR KR1020097015348A patent/KR101518519B1/ko active IP Right Grant
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2010
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JPS62202080A (ja) * | 1985-11-22 | 1987-09-05 | オフイス・ナシヨナル・デチユ−ド・エ・ド・ルシエルシユ・アエロスパシアル | ニツケル及び/又はコバルトを化学沈着させるためのヒドラジン浴及びそのヒドラジン浴の調製方法 |
JPH0254774A (ja) * | 1988-08-17 | 1990-02-23 | Seiko Instr Inc | 無電解金合金めっき浴 |
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JP2003049280A (ja) * | 2001-06-01 | 2003-02-21 | Ebara Corp | 無電解めっき液及び半導体装置 |
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JP2004010961A (ja) * | 2002-06-06 | 2004-01-15 | Ebara Corp | 基板処理装置 |
WO2005010233A2 (en) * | 2003-06-26 | 2005-02-03 | Atotech Deutschland Gmbh | Aqueous acidic immersion plating solutions and methods for plating on aluminum and aluminum alloys |
JP2005082883A (ja) * | 2003-09-11 | 2005-03-31 | Okuno Chem Ind Co Ltd | 無電解ニッケルめっき液 |
WO2005038085A2 (en) * | 2003-10-17 | 2005-04-28 | Applied Materials, Inc. | Selective self-initiating electroless capping of copper with cobalt-containing alloys |
WO2005073429A2 (en) * | 2004-01-26 | 2005-08-11 | Applied Materials, Inc. | Method and apparatus for selectively changing thin film composition during electroless deposition in a single chamber |
Also Published As
Publication number | Publication date |
---|---|
US7988774B2 (en) | 2011-08-02 |
JP5676880B2 (ja) | 2015-02-25 |
KR101518519B1 (ko) | 2015-05-07 |
CN101616747A (zh) | 2009-12-30 |
TW200835811A (en) | 2008-09-01 |
TWI447260B (zh) | 2014-08-01 |
US20080152822A1 (en) | 2008-06-26 |
US7794530B2 (en) | 2010-09-14 |
SG177913A1 (en) | 2012-02-28 |
WO2008085256A2 (en) | 2008-07-17 |
KR20090106540A (ko) | 2009-10-09 |
CN101616747B (zh) | 2013-05-15 |
WO2008085256A3 (en) | 2008-12-24 |
US20100304562A1 (en) | 2010-12-02 |
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