KR100694562B1 - 기판 도금방법 및 장치 - Google Patents
기판 도금방법 및 장치 Download PDFInfo
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- KR100694562B1 KR100694562B1 KR20017001685A KR20017001685A KR100694562B1 KR 100694562 B1 KR100694562 B1 KR 100694562B1 KR 20017001685 A KR20017001685 A KR 20017001685A KR 20017001685 A KR20017001685 A KR 20017001685A KR 100694562 B1 KR100694562 B1 KR 100694562B1
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- 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
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Abstract
Description
Claims (47)
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- 반도체기판의 배선용 오목부에 도금 금속을 충전하기 위한 기판 도금방법에 있어서,기판상에 초기막을 형성하는 무전해 도금 공정과, 상기 초기막을 급전층(feeding layer)으로 하여 전해도금을 행하여 상기 오목부를 충전하는 전해 도금 공정을 행하되,상기 전해 도금 공정은, 황산구리(CuSO4·5H2O)의 농도가 100 내지 250g/ℓ, 황산(H2SO4)의 농도가 10 내지 100g/ℓ, 염소이온의 농도가 0.001 내지 100mg/ℓ인 도금액을 사용하여 전해 도금을 행하되,상기 전해 도금액은 상기 조성의 도금액중에 적어도 0.14 내지 70 μmol/ℓ의 하기〔A〕식으로 나타내는 황화합물과, 하기〔B〕식으로 나타내는 고분자 화합물을 10 mg/ℓ내지 5 g/ℓ와, 질소화합물을 0.01 mg/ℓ내지 100mg/ℓ함유한 도금액인 것을 특징으로 하는 기판 도금방법.화학식 A화학식 B[A]식중, L은 저급 알킬기, 저급 알콕시기, 수산기 또는 할로겐원자로 치환되어도 좋은 탄소수 1 내지 6의 알킬기를 나타내고, X는 수소원자, -SO3M 기 또는 -PO3M 기(M은 수소원자, 알칼리 금속원자 또는 아미노기를 나타낸다)를 나타내며, [B]식중, R1은 탄소수 8 내지 25의 고급 알코올의 잔기, 탄소수 1 내지 25의 알킬기를 가지는 알킬페놀의 잔기, 탄소수 1 내지 25의 알킬기를 가지는 알킬나프톨 잔기, 탄소수 3 내지 22의 지방산 아미드의 잔기, 탄소수 2 내지 4의 알킬아민의 잔기 또는 수산기를 나타내고, R2 및 R3은 수소원자 또는 메틸기를 나타내고, m 및 k은 1 내지 100의 정수를 나타낸다.
- 제12항에 있어서,상기 무전해 도금 공정에 있어서,상기 피도금 기판의 도금 처리면을 상향으로 함과 동시에 상기 도금 처리면이 대면하여 밀폐되는 밀폐공간을 형성하는 밀폐공간 형성수단과, 이 밀폐공간에 무전해 도금액을 공급하는 도금액 공급수단을 설치하고, 이 밀폐공간에 무전해 도금액을 공급하여 무전해도금을 행하는 것을 특징으로 하는 기판 도금방법.
- 제13항에 있어서,상기 밀폐공간내의 압력이 대기압보다 높고, 그 압력을 맥동시키는 압력 맥동수단을 설치한 것을 특징으로 하는 기판 도금방법.
- 제13항에 있어서,상기 밀폐공간에 피도금 기판에 소정의 도금을 실시하는 데 필요한 최소한도의 무전해 도금액을 공급하고 이 무전해 도금액을 정지시킨 상태에서 무전해 도금을 할 수 있게 구성한 것을 특징으로 하는 기판 도금방법.
- 제15항에 있어서,상기 밀폐공간내의 압력이 대기압보다 높고, 그 압력을 맥동시키는 압력 맥동수단을 설치한 것을 특징으로 하는 기판 도금방법.
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- 제13항 내지 제16항 중 어느 한 항에 있어서,상기 밀폐공간의 근방에 건욕조(preparation bath)를 설치하고, 무전해 도금을 행하기 직전에 상기 밀폐공간에 건욕(preparation)한 상기 필요 최소한도의 무전해 도금액을 공급할 수 있게 구성한 것을 특징으로 하는 기판 도금방법.
- 제19항에 있어서,상기 필요 최소한도의 무전해 도금액으로 도금한 후, 이 무전해 도금액을 순환 재이용하는 일 없이 폐액으로서 처리하도록 구성한 것을 특징으로 하는 기판도금방법.
- 제12항 내지 제16항 중 어느 한 항에 있어서,상기 기판 도금방법에 사용하는 도금액의 pH 조정제로서 알칼리 금속을 포함하지 않은 것을 사용하는 것을 특징으로 하는 기판 도금방법.
- 반도체기판의 배선용 오목부에 도금 금속을 충전하기 위한 기판 도금장치에 있어서,기판상에 초기막을 무전해 도금으로 형성하는 무전해 도금조와, 상기 초기막을 급전층(feeding layer)으로 하여 전해 도금을 행하여 상기 오목부를 충전하는 전해 도금조를 구비하고, 상기 각 조의 사이에서 기판을 이송하는 이송수단이 설치되어 있고,상기 무전해 도금조에 있어서,상기 피도금 기판의 도금 처리면을 상향으로 함과 동시에 상기 도금 처리면이 대면하여 밀폐되는 밀폐공간을 형성하는 밀폐공간 형성수단과, 이 밀폐공간에 무전해 도금액을 공급하는 도금액 공급수단을 설치하고, 이 밀폐공간에 무전해 도금액을 공급하여 무전해도금을 행하며, 상기 밀폐공간에 피도금 기판에 소정의 도금을 실시하는 데 필요한 최소한도의 무전해 도금액을 공급하고 이 무전해 도금액을 정지시킨 상태에서 무전해 도금을 할 수 있게 구성되고, 상기 밀폐공간내의 압력이 대기압보다 높고, 그 압력을 맥동시키는 압력 맥동수단을 설치하며,전해 도금조는, 황산구리(CuSO4·5H2O)의 농도가 100 내지 250g/ℓ, 황산(H2SO4)의 농도가 10 내지 100g/ℓ, 염소이온의 농도가 0.001 내지 100mg/ℓ인 도금액을 사용하여 전해 도금을 행하는 것을 특징으로 하는 기판 도금장치.
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- 제22항에 있어서,상기 전해 도금액은 상기 조성의 도금액중에 적어도 0.14 내지 70 μmol/ℓ의 하기〔A〕식으로 나타내는 황화합물과, 하기〔B〕식으로 나타내는 고분자 화합물을 10 mg/ℓ내지 5 g/ℓ와, 질소화합물을 0.01 mg/ℓ내지 100mg/ℓ함유한 도금액인 것을 특징으로 하는 기판 도금장치.화학식 A화학식 B[A]식중, L은 저급 알킬기, 저급 알콕시기, 수산기 또는 할로겐원자로 치환되어도 좋은 탄소수 1 내지 6의 알킬기를 나타내고, X는 수소원자, -SO3M 기 또는 -PO3M 기(M은 수소원자, 알칼리 금속원자 또는 아미노기를 나타낸다)를 나타내며, [B]식중, R1은 탄소수 8 내지 25의 고급 알코올의 잔기, 탄소수 1 내지 25의 알킬기를 가지는 알킬페놀의 잔기, 탄소수 1 내지 25의 알킬기를 가지는 알킬나프톨 잔기, 탄소수 3 내지 22의 지방산 아미드의 잔기, 탄소수 2 내지 4의 알킬아민의 잔기 또는 수산기를 나타내고, R2 및 R3은 수소원자 또는 메틸기를 나타내고, m 및 k은 1 내지 100의 정수를 나타낸다.
- 제22항 또는 제28항에 있어서,상기 밀폐공간의 근방에 건욕조(preparation bath)를 설치하고, 무전해 도금을 행하기 직전에 상기 밀폐공간에 건욕(preparation)한 상기 필요 최소한도의 무전해 도금액을 공급할 수 있게 구성한 것을 특징으로 하는 기판 도금장치.
- 제29항에 있어서,상기 필요 최소한도의 무전해 도금액으로 도금한 후, 이 무전해 도금액을 순환 재이용하는 일 없이 폐액으로서 처리하도록 구성한 것을 특징으로 하는 기판 도금장치.
- 제22항 또는 제28항에 있어서,기판 도금방법에 사용하는 도금액의 pH 조정제로서 알칼리 금속을 포함하지 않은 것을 사용하는 것을 특징으로 하는 기판 도금장치.
- 반도체기판의 배선용 오목부에 도금금속을 충전하기 위한 기판 도금장치에 있어서,동일 처리조에, 기판상에 초기막을 무전해 도금으로 형성하기 위한 무전해 도금액을 공급하는 무전해 도금액 공급유로와, 상기 초기막을 급전층(feeding layer)으로 하여 전해도금을 행하여 상기 오목부를 충전하는 전해 도금액을 공급하는 전해 도금액 공급유로가 택일적으로 전환 가능하게 설치되어 있는 것을 특징으로 하는 기판 도금장치.
- 제32항에 있어서,상기 기판 도금장치에 사용하는 도금액의 pH 조정제로서 알칼리 금속을 포함하지 않은 것을 사용하는 것을 특징으로 하는 기판 도금장치.
- 기판표면의 배선용 오목부에 도금금속을 충전하기 위한 기판 도금장치에 있어서,프레임;상기 기판이 유지되는 로드·언로드유닛;상기 프레임 내에 배치되는 이송 메커니즘; 및상기 이송 메커니즘을 둘러싸기 위한 상기 프레임 내에 배치되고, 밀폐되어 내부에 처리액이 기판의 피도금면을 따라 평행하게 흐르도록 구성된 도금처리조를 포함하는 복수의 공정유닛을 포함하는 기판 도금장치.
- 제34항에 있어서,상기 이송메커니즘은 선형적으로 이동가능한 것을 특징으로 하는 기판 도금장치.
- 제34항에 있어서,상기 공정 유닛은, 전해 도금 공정을 수행하기 위한 전해 도금 유닛을 포함하는 것을 특징으로 하는 기판 도금장치.
- 제36항에 있어서,상기 공정 유닛은, 상기 전해 도금 공정 후 상기 기판을 세정하고 스핀 건조하기 위한 세정 및 건조장치를 포함하는 것을 특징으로 하는 기판 도금장치.
- 제34항에 있어서,상기 공정 유닛은, 무전해 도금 공정을 수행하기 위한 무전해 도금 유닛을 포함하는 것을 특징으로 하는 기판 도금장치.
- 제38항에 있어서,상기 공정 유닛은, 상기 무전해 도금 공정의 전처리를 수행하기 위한 전처리 유닛을 포함하는 것을 특징으로 하는 기판 도금장치.
- 제38항에 있어서,상기 전해 도금 유닛은, 100 내지 250g/ℓ 농도의 황산구리(CuSO4·5H2O)를 포함하는 도금액을 갖는 전해 도금조를 포함하는 것을 특징으로 하는 기판 도금장치.
- 제38항에 있어서,상기 전해 도금 유닛은, 10 내지 100g/ℓ 농도의 황산(H2SO4)을 포함하는 도금액을 갖는 전해 도금조를 포함하는 것을 특징으로 하는 기판 도금장치.
- 제38항에 있어서,상기 전해 도금 유닛은, 0.001 내지 100mg/ℓ 농도의 염소이온을 포함하는 도금액을 갖는 전해 도금조를 포함하는 것을 특징으로 하는 기판 도금장치.
- 제38항에 있어서,상기 전해 도금 유닛은, 적어도 10 내지 5000 mg/ℓ의 아래식으로 나타내는 고분자 화합물을 포함하는 도금액을 갖는 전해 도금조를 포함하는 것을 특징으로 하는 기판 도금장치.여기서, R1은 탄소수 8 내지 25의 고급 알코올의 잔기, 탄소수 1 내지 25의 알킬기를 가지는 알킬페놀의 잔기, 탄소수 1 내지 25의 알킬기를 가지는 알킬나프톨 잔기, 탄소수 3 내지 22의 지방산 아미드의 잔기, 탄소수 2 내지 4의 알킬아민의 잔기 또는 수산기를 나타내고; R2 및 R3은 수소원자 또는 메틸기를 나타내고; m 및 k는 1 내지 100의 정수를 나타낸다.
- 제38항에 있어서,상기 전해 도금 유닛은, 적어도 0.01 내지 100 mg/ℓ의 질소 화합물을 포함하는 도금액을 갖는 전해 도금조를 포함하는 것을 특징으로 하는 기판 도금장치.
- 제34항에 있어서,상기 프레임은 직사각형의 형상인 것을 특징으로 하는 기판 도금장치.
- 기판표면의 배선용 오목부에 도금금속을 충전하기 위한 기판 도금장치에 있어서,프레임;상기 기판이 유지되는 로드·언로드유닛;상기 프레임 내에 배치되는 이송 메커니즘; 및상기 이송 메커니즘을 둘러싸기위한 상기 프레임 내에 배치되고, 도금처리조를 포함하는 복수의 공정유닛을 포함하며,상기 도금처리조는 피도금 기판을 유지하는 턴테이블과, 적어도 일측면이 개방된 도금셀과, 도금셀의 외주연에 피도금 기판에 밀접하는 밀봉패킹을 포함하는 것을 특징으로 하는 기판 도금장치.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23949098A JP4162298B2 (ja) | 1998-08-11 | 1998-08-11 | 基板めっき装置 |
| JP10-239490 | 1998-08-11 | ||
| JP11030230A JP2000226671A (ja) | 1999-02-08 | 1999-02-08 | 無電解めっき装置 |
| JP11-30230 | 1999-02-08 | ||
| JP11-220363 | 1999-08-03 | ||
| JP22036399A JP2001049490A (ja) | 1999-08-03 | 1999-08-03 | 基板のめっき方法及び装置 |
| PCT/JP1999/004349 WO2000010200A1 (fr) | 1998-08-11 | 1999-08-11 | Procede et appareil de metallisation de plaquettes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010074808A KR20010074808A (ko) | 2001-08-09 |
| KR100694562B1 true KR100694562B1 (ko) | 2007-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR20017001685A Expired - Fee Related KR100694562B1 (ko) | 1998-08-11 | 1999-08-11 | 기판 도금방법 및 장치 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US7033463B1 (ko) |
| EP (1) | EP1126512A4 (ko) |
| KR (1) | KR100694562B1 (ko) |
| WO (1) | WO2000010200A1 (ko) |
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| US6897152B2 (en) * | 2003-02-05 | 2005-05-24 | Enthone Inc. | Copper bath composition for electroless and/or electrolytic filling of vias and trenches for integrated circuit fabrication |
| EP1477588A1 (en) * | 2003-02-19 | 2004-11-17 | Rohm and Haas Electronic Materials, L.L.C. | Copper Electroplating composition for wafers |
| JP2004315889A (ja) * | 2003-04-16 | 2004-11-11 | Ebara Corp | 半導体基板のめっき方法 |
| DE112005002867B4 (de) * | 2004-11-24 | 2015-02-05 | Sumitomo Electric Industries, Ltd. | Salzschmelzbad, Abscheidung und Verfahren zur Herstellung einer Metallabscheidung |
| US20060246699A1 (en) * | 2005-03-18 | 2006-11-02 | Weidman Timothy W | Process for electroless copper deposition on a ruthenium seed |
| US7575666B2 (en) | 2006-04-05 | 2009-08-18 | James Watkowski | Process for electrolytically plating copper |
| JP5267526B2 (ja) | 2010-09-24 | 2013-08-21 | 株式会社デンソー | めっき装置及びめっき方法 |
| TW201251094A (en) * | 2011-06-07 | 2012-12-16 | Hon Hai Prec Ind Co Ltd | Electrode of dye-sensitized solar cells manufacturing equipment |
| CN102703939B (zh) * | 2012-06-07 | 2014-12-24 | 上海交通大学 | 甲基磺酸铜电镀液的应力消除剂及其使用方法 |
| CN106757242B (zh) * | 2015-11-20 | 2018-11-02 | 中国科学院大连化学物理研究所 | 一种用于多孔物质电镀的装置及电镀或化学沉积的方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2000010200A8 (fr) | 2000-04-27 |
| US7033463B1 (en) | 2006-04-25 |
| EP1126512A2 (en) | 2001-08-22 |
| WO2000010200A1 (fr) | 2000-02-24 |
| EP1126512A4 (en) | 2007-10-17 |
| US20060144714A1 (en) | 2006-07-06 |
| KR20010074808A (ko) | 2001-08-09 |
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