KR19990002946A - 금속 범프를 갖는 회로 기판의 제조 방법 및 그를 이용한 반도체 칩 패키지의 제조 방법 - Google Patents
금속 범프를 갖는 회로 기판의 제조 방법 및 그를 이용한 반도체 칩 패키지의 제조 방법 Download PDFInfo
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- KR19990002946A KR19990002946A KR1019970026708A KR19970026708A KR19990002946A KR 19990002946 A KR19990002946 A KR 19990002946A KR 1019970026708 A KR1019970026708 A KR 1019970026708A KR 19970026708 A KR19970026708 A KR 19970026708A KR 19990002946 A KR19990002946 A KR 19990002946A
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Abstract
Description
Claims (17)
- (A) 상부면에 반도체 칩이 부착될 칩 실장 영역이 형성되어 있으며, 상기 칩 실장 영역에 근접하게 회로 패턴이 형성되어 있으며, 하부면에 상기 회로 패턴과 전기적으로 연결된 금속 패드가 형성된 기판이 구비되는 단계와;(B) 상기 기판 하부면에 금속판이 부착되는 단계와;(C) 상기 금속판을 식각하여 상기 금속 패드 상에 패턴부를 형성하는 단계; 및(D) 상기 패턴부를 도금하여 금속 범프를 형성하는 단계;를 포함하는 패터닝된 금속 범프를 갖는 인쇄 회로 기판의 제조 방법.
- 제 1항에 있어서, 상기 금속판은 구리판인 것을 특징으로 하는 패터닝된 금속 범프를 갖는 인쇄 회로 기판의 제조 방법.
- 제 2항에 있어서, 상기 (D) 단계에서 상기 금속 범프가 솔더(Solder)로 도금되는 것을 특징으로 하는 패터닝된 금속 범프를 갖는 인쇄 회로 기판의 제조 방법.
- 제 2항에 있어서, 상기 (D) 단계에서 상기 금속 범프가 니켈/금(Ni/Au) 합금으로 도금되는 것을 특징으로 하는 패터닝된 금속 범프를 갖는 인쇄 회로 기판의 제조 방법.
- 제 1항에 있어서, 상기 (C) 단계는,(C1) 상기 금속판에 포토레지스트를 도포하는 단계와;(C2) 상기 포토레지스트를 노광·현상하여 상기 금속 패드 외측의 금속판의 상부면이 노출될 수 있는 개방부를 형성하는 단계와;(C3) 상기 포토레지스트의 개방부에 노출된 상기 금속판을 식각하여 패턴부를 형성하는 단계; 및(C4) 상기 포토레지스트를 제거하는 단계;를 포함하는 것을 특징으로 하는 패터닝된 금속 범프를 갖는 인쇄 회로 기판의 제조 방법.
- 제 1항에 있어서, 상기 (C) 단계이후에 상기 패턴부 주위의 상기 기판 하부면에 솔더 레지스트를 도포하는 단계를 더 구비하는 것을 특징으로 하는 패터닝된 금속 범프를 갖는 인쇄 회로 기판의 제조 방법.
- (A) 상부면에 반도체 칩이 부착될 칩 실장 영역이 형성되어 있으며, 상기 칩 실장 영역에 근접하게 회로 패턴이 형성되어 있으며, 하부면에 상기 회로 패턴과 전기적으로 연결된 금속 패드가 형성된 기판이 구비되는 단계와;(B) 상기 기판 하부면에 금속판이 부착되는 단계와;(C) 상기 금속판을 식각하여 상기 금속 패드 상에 패턴부를 형성하는 단계와;(D) 상기 패턴부를 도금하여 금속 범프를 형성하는 단계와;(E) 상기 기판 상부면의 칩 실장에 반도체 칩을 부착하는 단계와;(F) 상기 반도체 칩과 회로 패턴을 본딩 와이어로 연결하는 단계; 및(G) 상기 반도체 칩, 회로 패턴 및 본딩 와이어를 봉지하여 패키지 몸체를 형성하는 단계;를 포함하는 반도체 칩 패키지 제조 방법.
- 제 7항에 있어서, 상기 금속판은 구리판인 것을 특징으로 하는 반도체 칩 패키지 제조 방법.
- 제 8항에 있어서, 상기 (D) 단계에서 상기 패턴부가 솔더(Solder)로 도금되는 것을 특징으로 하는 반도체 칩 패키지 제조 방법.
- 제 8항에 있어서, 상기 (D) 단계에서 상기 패턴부가 니켈/금(Ni/Au) 합금으로 도금되는 것을 특징으로 하는 반도체 칩 패키지 제조 방법.
- 제 7항에 있어서, 상기 (C) 단계는(C1) 상기 금속판에 포토레지스트를 도포하는 단계와;(C2) 상기 포토레지스트를 노광·현상하여 상기 금속 패드 외측의 금속판의 상부면이 노출될 수 있는 개방부를 형성하는 단계와;(C3) 상기 포토레지스트의 개방부에 노출된 상기 금속판을 식각하여 패턴부를 형성하는 단계; 및(C4) 상기 포토레지스트를 제거하는 단계;를 포함하는 것을 특징으로 하는 반도체 칩 패키지 제조 방법.
- 제 7항에 있어서, 상기 (C) 단계이후에 상기 패턴부 주위의 상기 기판 하부면에 솔더 레지스트를 도포하는 단계를 더 구비하는 것을 특징으로 하는 반도체 칩 패키지 제조 방법.
- (A) 폴리이미드 테이프의 하부면에 금 도금된 구리 배선이 부착된 회로 기판이 구비되는 단계와;(B) 상기 폴리이미드 테이프의 상부면에 상기 구리 배선이 노출될 수 있도록 복수개의 비아 홀을 형성하는 단계와;(C) 상기 폴리이미드 테이프의 상부면에 포토레지스트를 도포하며, 도포된 상기 포토레지스트 하부에 위치하는 비아 홀이 개방될 수 있도록 포토레지스트를 현상하여 개방부를 형성하는 단계와;(D) 상기 포토레지스트의 개방부를 구리 도금으로 메우는 단계와;(E) 상기 포토레지스트를 제거하는 단계; 및(F) 상기 도금된 구리의 표면을 보호하기 위해 도금층을 형성하여 상기 폴리이미드 테이프 상에 도금 범프를 형성하는 단계;를 포함하는 도금 범프가 형성된 플렉서블 회로 기판의 제조 방법.
- 제 13항에 있어서, 상기 (F) 단계 이후에 반도체 칩의 칩 패드와 접속될 금속 리드를 형성하기 위하여,(G) 상기 도금 범프들의 외각의 폴리이미드 테이프를 식각하는 단계; 및(H) 상기 구리 배선의 구리층을 식각하는 단계;를 더 구비하는 하는 것을 특징으로 하는 도금 범프가 형성된 플렉서블 회로 기판의 제조 방법.
- 제 13항에 있어서, 상기 (F)의 도금층을 형성하는 단계는,(F1) 상기 구리 표면에 니켈(Ni)을 도금하는 단계; 및(F2) 상기 니켈 도금층에 금(Au) 도금을 하는 단계;를 포함하는 것을 특징으로 하는 도금 범프가 형성된 플렉서블 회로 기판의 제조 방법.
- (A) (a) 폴리이미드 테이프의 하부면에 금 도금된 구리 배선이 부착된 회로 기판이 구비되는 단계와, (b) 상기 폴리이미드 테이프의 상부면에 상기 구리 배선이 노출될 수 있도록 복수개의 비아 홀을 형성하는 단계와, (c) 상기 폴리이미드 테이프의 상부면에 포토레지스트를 도포하며, 도포된 상기 포토레지스트 하부에 위치하는 비아 홀이 개방될 수 있도록 포토레지스트를 현상하여 개방부를 형성하는 단계와, (d) 상기 포토레지스트의 개방부를 구리 도금으로 메우는 단계와, (e) 상기 포토레지스트를 제거하는 단계와, (f) 상기 도금된 구리의 표면을 보호하기 위해 도금층을 형성하여 상기 폴리이미드 테이프 상에 도금 범프를 형성하는 단계 및 (g) 상기 도금 범프들의 외각의 폴리이미드 테이프 및 그 하부에 위치하는 구리 배선의 구리층을 식각하여 금속 리드와 금속 리드 개방부를 형성하는 단계를 포함하는 플렉서블 회로 기판을 형성하는 단계와;(B) 칩 패드가 형성된 반도체 칩의 상부면에 탄성 중합체가 개재된 상태에서 상기 플렉서블 회로 기판의 하부면이 부착되는 단계와;(C) 상기 폴리이미드 테이프 외측의 금속 리드를 끊어 상기 금속 리드와 칩 패드를 접속하는 단계; 및(D) 상기 반도체 칩의 칩 패드가 형성된 면과 금속 리드를 봉지하는 단계;를 포함하는 것을 특징으로 하는 반도체 칩 패키지의 제조 방법.
- 제 16항에 있어서, 상기 (f)의 도금층을 형성하는 단계는,(f1) 상기 구리 표면에 니켈(Ni)을 도금하는 단계 및(f2) 상기 니켈 도금층에 금(Au) 도금을 하는 단계를 포함하는 것을 특징으로 하는 반도체 칩 패키지의 제조 방법.
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KR1019970026708A KR100244580B1 (ko) | 1997-06-24 | 1997-06-24 | 금속 범프를 갖는 회로 기판의 제조 방법 및 그를 이용한 반도체 칩 패키지의 제조 방법 |
JP10028543A JPH1116933A (ja) | 1997-06-24 | 1998-02-10 | 金属バンプを有する回路基板の製造方法及びこの回路基板を利用した半導体チップパッケージの製造方法 |
US09/087,929 US6041495A (en) | 1997-06-24 | 1998-06-01 | Method of manufacturing a circuit board having metal bumps and a semiconductor device package comprising the same |
US09/506,593 US6245490B1 (en) | 1997-06-24 | 2000-02-18 | Method of manufacturing a circuit board having metal bumps and a semiconductor device package comprising the same |
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-
1997
- 1997-06-24 KR KR1019970026708A patent/KR100244580B1/ko not_active Expired - Fee Related
-
1998
- 1998-02-10 JP JP10028543A patent/JPH1116933A/ja active Pending
- 1998-06-01 US US09/087,929 patent/US6041495A/en not_active Expired - Lifetime
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2000
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20020010246A (ko) * | 2000-07-28 | 2002-02-04 | 듀흐 마리 에스. | 씬 볼 그리드 어레이 기판의 제조방법 |
KR100362145B1 (ko) * | 2001-03-21 | 2002-11-22 | 주식회사 아이에스시테크놀러지 | 도체 접촉부 표면구조 및 표면처리 방법 |
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Publication number | Publication date |
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US6041495A (en) | 2000-03-28 |
US6245490B1 (en) | 2001-06-12 |
KR100244580B1 (ko) | 2000-02-15 |
JPH1116933A (ja) | 1999-01-22 |
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