JP2002506488A - 電気化学堆積システム及び基体の電気めっき方法 - Google Patents
電気化学堆積システム及び基体の電気めっき方法Info
- Publication number
- JP2002506488A JP2002506488A JP55332099A JP55332099A JP2002506488A JP 2002506488 A JP2002506488 A JP 2002506488A JP 55332099 A JP55332099 A JP 55332099A JP 55332099 A JP55332099 A JP 55332099A JP 2002506488 A JP2002506488 A JP 2002506488A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- electrolyte
- cathode
- contact
- plating
- 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
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- 229940103494 thiosalicylic acid Drugs 0.000 description 1
- BWHOZHOGCMHOBV-BQYQJAHWSA-N trans-benzylideneacetone Chemical compound CC(=O)\C=C\C1=CC=CC=C1 BWHOZHOGCMHOBV-BQYQJAHWSA-N 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- AYNNSCRYTDRFCP-UHFFFAOYSA-N triazene Chemical compound NN=N AYNNSCRYTDRFCP-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
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- NLIVDORGVGAOOJ-MAHBNPEESA-M xylene cyanol Chemical compound [Na+].C1=C(C)C(NCC)=CC=C1C(\C=1C(=CC(OS([O-])=O)=CC=1)OS([O-])=O)=C\1C=C(C)\C(=[NH+]/CC)\C=C/1 NLIVDORGVGAOOJ-MAHBNPEESA-M 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/001—Apparatus specially adapted for electrolytic coating of wafers, e.g. semiconductors or solar cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/12—Semiconductors
- C25D7/123—Semiconductors first coated with a seed layer or a conductive layer
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Electroplating Methods And Accessories (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.基体めっき表面を有する基体上に金属を電気化学的に堆積させるための装置 であって、 a)上記基体めっき表面が電解液コンテナ内の電解液に曝される位置に上記 基体を保持する基体ホールダと、 b)上記基体めっき表面と電気的に接触している陰極と、 c)電解液入口、電解液出口、及び上記基体めっき表面を受入れる開口を有 する電解液コンテナと、 d)上記電解液に電気的に接続されている陽極と、 を備えていることを特徴とする装置。 2.上記基体ホールダは、 i) 基体保持表面を有する真空チャックと、 ii) 上記基体保持表面の周囲に配置され、上記基体の周縁部分と接触する エラストマーリングと、 を含んでいる請求項1に記載の装置。 3.上記基体ホールダは、 iii) 上記基体保持表面の縁付近に1つまたはそれ以上の開口を有する1つ またはそれ以上の気泡解放ポート、 を更に含んでいる請求項2に記載の装置。 4.上記基体ホールダは、 i) 基体保持表面を有する真空チャックと、 ii) 上記基体保持表面の周囲に配置され、上記基体の周縁部分と接触する ガス嚢と、 を含んでいる請求項1に記載の装置。 5.上記陽極は、 i) 電解液をそれを通して流すための多孔質外囲と、 ii) 上記外囲内に配置されている金属と、 iii) 上記外囲を通して配置され、上記金属に電気的に接続されている電極 と、 を含んでいる請求項1に記載の装置。 6.上記金属は、金属ペレット、金属ワイヤー、及び金属粒子からなるグループ から選択された1つまたはそれ以上の材料からなる請求項5に記載の装置。 7.上記陰極は、上記基体めっき表面の周縁部分に配置されている陰極接触部材 を含み、上記陰極接触部材は上記基体表面と電気的に接触している接触表面を 有している請求項1に記載の装置。 8.上記陰極接触部材は、接触ピンの放射状アレイを含んでいる請求項7に記載 の装置。 9.上記陰極は、各接触ピンと直列に接続されている抵抗を更に含んでいる請求 項8に記載の装置。 10.上記陰極は、上記抵抗を通って流れる電流を監視するために上記各抵抗にま たがって接続されているセンサを更に含んでいる請求項9に記載の装置。 11.上記陰極接触部材は、上記電解液に曝される1つまたはそれ以上の表面に非 めっき被覆を更に含んでいる請求項7に記載の装置。 12.上記雷解液出口は、上記基体めっき表面から放射状に外向きに伸びる上記基 体ホールダ上の第1の表面と、上記電解液コンテナの表面との間の間隙によっ て限定されている請求項1に記載の装置。 13.上記間隙は、約1mm乃至約30mmの間隙幅を有している請求項12に記載 の装置。 14.e) 上記電解液と電気的に接触して配置され、調整可能な電力を供給する 制御電極、 を更に含んでいる請求項1に記載の装置。 15.上記制御電極は、上記電解液コンテナの外側に配置され、上記電解液出口か ら流出する電解液と電気的に接触するようになっている請求項14に記載の装 置。 16.上記制御電極は、電極セグメントのアレイを含んでいる請求項14に記載の 装置。 17.e) 上記基体ホールダに取付けられ、振動を上記基体ホールダに伝えるバ イブレータ、 を更に含んでいる請求項1に記載の装置。 18.上記バイブレータは、1つまたはそれ以上の方向に上記基体ホールダを振動 させるようになっている請求項17に記載の装置。 19.e) 上記基体ホールダに取付けられ、上記基体を通る中心軸を中心として 上記基体を回転させるようになっている回転アクチュエータ、 を更に含んでいる請求項1に記載の装置。 20.e) 上記電解液コンテナのトップ部分に配置され、上記電解液コンテナの 開口を限定しているスリーブ挿入物、 を更に含んでいる請求項1に記載の装置。 21.e) 上記電解液コンテナ内のトップ部分に配置されている流れ調整器ウェ ッジ、 を更に含んでいる請求項1に記載の装置。 22.e) 上記ウェーハめっき表面全体にガス流を供給して残留電解液を除去す るガスナイフ、 を更に含んでいる請求項1に記載の装置。 23.e) 上記電解液コンテナ内のトップ部分に配置されているウェーハキャッ チャー、 を更に含んでいる請求項1に記載の装置。 24.e) 上記陰極及び陽極を監視するための参照電極、 を更に含んでいる請求項1に記載の装置。 25.e) 上記電解液入口に選択的に接続されるすすぎ溶液源、 を更に含んでいる請求項1に記載の装置。 26.e) 上記電解液コンテナ内に配置され、気泡を電解液コンテナ側壁に向か って転向させる気泡転向羽根、 を更に含んでいる請求項1に記載の装置。 27.基体上に金属を電気化学的に堆積させるための方法であって、 a)1) 基体ホールダ、 2) 基体めっき表面と電気的に接触している陰極、 3) 電解液入口、電解液出口、及び上記基体めっき表面を受入れる開口 を有する電解液コンテナ、及び 4) 上記電解液に電気的に接続されている陽極、 を備えている電気化学的堆積セルを準備するステップと、 b)上記陰極及び陽極に電力を印加するステップと、 c)上記基体めっき表面に接触させるように電解液を流すステップと、 を含んでいることを特徴とする方法。 28.上記電解液は、約0.25ガロン/分(gsm)乃至約15gsmを流すようになってい る請求項27に記載の方法。 29.上記陰極及び陽極に電力を印加するステップは、 1) 約1秒乃至240秒にわたって約5mA/cm2乃至約40mA/cm2の陰 極電流密度を印加するステップ、 を含んでいる請求項27に記載の方法。 30.上記陰極及び陽極に電力を印加するステップは、 2) 約0.1秒乃至約100秒にわたって約5mA/cm2乃至約80mA/cm2の 溶解反転電流を印加するステップ、 を更に含んでいる請求項29に記載の方法。 31.上記陰極及び陽極に電力を印加するステップは、 1) 約1秒乃至240秒にわたって約5mA/cm2乃至約40mA/cm2の陰 極電流密度を印加するステップと、 2) 約0.1秒乃至約100秒にわたって約5mA/cm2乃至約80mA/cm2の 溶解反転電流を印加するステップと、 3) 約1秒乃至240秒にわたって約5mA/cm2乃至約40mA/cm2の陰 極電流密度を印加するステップと、 4) 上記ステップ2)及び3)を繰り返すステップと、 を含んでいる請求項27に記載の方法。 32.d)電気化学的堆積セルの電解液と電気的に接触する制御電極を設けるステ ップと、 e)堆積中に、上記制御電極によって供給される電力を調整するステップと 、 を更に含んでいる請求項27に記載の方法。 33.上記制御電極によって供給される電力は、電気化学的堆積プロセスの堆積/ 溶解サイクルと同期して調整される請求項32に記載の方法。 34.d)上記電気化学的堆積セルの成分を振動させるステップ、 を更に含んでいる請求項27に記載の方法。 35.d)上記電気化学的堆積セルの成分を、約10Hz乃至約20,000Hzの振動周 波数で、且つ約0.5ミクロン乃至約100,000ミクロンの振動振幅で振動させるス テップ、 を更に含んでいる請求項27に記載の方法。 36.d)上記基体ホールダを、上記基体を通る中心軸を中心として回転させるス テップ、 を更に含んでいる請求項27に記載の方法。 37.基体上に金属を電気化学的に堆積させるための装置であって、 a) i) 基体保持表面を有する真空チャック、及び ii) 上記基体保持表面の周囲に配置され、上記基体の周縁部分と接触 するエラストマーリング、 を含む基体ホールダと、 b)上記基体めっき表面と電気的に接触している陰極と、 c)電解液入口、電解液出口、及び上記基体めっき表面を受入れる開口を有 し、上記基体めっき表面から放射状に外向きに伸びる第1の表面と、それの表 面との間の間隙によって上記電解液出口を限定している電解液コンテナと、 d)上記電解液に電気的に接続されており、 i) 電解液をそれを通して流すための多孔質外囲、 ii) 上記外囲内に配置されている金属、及び iii) 上記外囲内に配置されている電極、 を含む陽極と、 e)上記電解液と電気的に接触して配置され、調整可能な電力を供給する制 御電極と、 f)上記基体ホールダに取付けられ、1つまたはそれ以上の方向の振動を上 記基体ホールダに伝えるバイブレータと、 を備えていることを特徴とする装置。
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US8252198P | 1998-04-21 | 1998-04-21 | |
US60/082,521 | 1998-04-21 | ||
PCT/US1999/008782 WO1999054527A2 (en) | 1998-04-21 | 1999-04-21 | Electro-chemical deposition system and method of electroplating on substrates |
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US (2) | US6261433B1 (ja) |
EP (1) | EP0991795B1 (ja) |
JP (1) | JP2002506488A (ja) |
KR (1) | KR100616198B1 (ja) |
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- 1999-04-21 KR KR19997012098A patent/KR100616198B1/ko not_active IP Right Cessation
- 1999-04-21 US US09/295,678 patent/US6261433B1/en not_active Ceased
- 1999-04-21 DE DE69929967T patent/DE69929967T2/de not_active Expired - Fee Related
- 1999-04-21 JP JP55332099A patent/JP2002506488A/ja not_active Ceased
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2003
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US10017869B2 (en) | 2008-11-07 | 2018-07-10 | Novellus Systems, Inc. | Electroplating apparatus for tailored uniformity profile |
US10920335B2 (en) | 2008-11-07 | 2021-02-16 | Novellus Systems, Inc. | Electroplating apparatus for tailored uniformity profile |
US11549192B2 (en) | 2008-11-07 | 2023-01-10 | Novellus Systems, Inc. | Electroplating apparatus for tailored uniformity profile |
JP2012007201A (ja) * | 2010-06-23 | 2012-01-12 | Lapis Semiconductor Co Ltd | めっき装置 |
TWI622667B (zh) * | 2011-04-14 | 2018-05-01 | Tel Nexx公司 | 電化學沉積及補充設備 |
JP2014111831A (ja) * | 2012-11-27 | 2014-06-19 | Lam Research Corporation | 電気めっき中の動的な電流分布制御のための方法および装置 |
US9909228B2 (en) | 2012-11-27 | 2018-03-06 | Lam Research Corporation | Method and apparatus for dynamic current distribution control during electroplating |
Also Published As
Publication number | Publication date |
---|---|
DE69929967D1 (de) | 2006-04-27 |
KR100616198B1 (ko) | 2006-08-25 |
EP0991795A1 (en) | 2000-04-12 |
DE69929967T2 (de) | 2007-05-24 |
WO1999054527A2 (en) | 1999-10-28 |
EP0991795B1 (en) | 2006-02-22 |
US6261433B1 (en) | 2001-07-17 |
WO1999054527A3 (en) | 2000-03-23 |
USRE40218E1 (en) | 2008-04-08 |
KR20010014062A (ko) | 2001-02-26 |
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