KR100371282B1 - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR100371282B1 KR100371282B1 KR10-2001-0004451A KR20010004451A KR100371282B1 KR 100371282 B1 KR100371282 B1 KR 100371282B1 KR 20010004451 A KR20010004451 A KR 20010004451A KR 100371282 B1 KR100371282 B1 KR 100371282B1
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- metal
- conductive member
- semiconductor device
- resin
- semiconductor chip
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Abstract
Description
Claims (23)
- 반도체 장치에 있어서,반도체 칩,상기 반도체 칩 상에 형성된 전극 패드,상기 전극 패드에 접속되는 금속 범프,상기 반도체 칩에 형성되고 상기 전극 패드를 노출시키는 개구부를 가진 패시배이션막,상기 개구부를 통하여 일단면이 상기 전극 패드에 접속된 제1 도전 부재,상기 제1 도전 부재의 다른 단면과 상기 금속 범프가 서로 접속된 제2 도전 부재, 및상기 제2 도전 부재의 단면들을 제외하고 상기 제1 도전 부재, 상기 제2 도전 부재 및 상기 패시배이션막을 피복하는 탄성을 가진 절연성 수지층을 포함하는 것을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 상기 금속 범프는 Ag를 포함하는 금속 재료가 첨가된 땜납으로 형성되는 것을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 상기 제2 도전 부재 각각은 열팽창 계수가 서로 다른 다수의 단을 가진 다단 구조로 구성되는 것을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 상기 제2 도전 부재 각각은 다수의 단을 가진 다단 구조로 구성되며, 상기 절연성 수지층은 다층 구조로 구성되고, 상기 제2 도전 부재 각각의 각 단들은 상기 절연성 수지층의 각 층들에 의해서 피복되는 것을 특징으로 하는 반도체 장치.
- 제4항에 있어서, 상기 제1 도전 부재의 다른 단면에 접하는 제1단의 상기 제2 도전 부재를 피복하는 상기 절연성 수지층은 에폭시 수지, 실리콘 수지, 폴리이미드 수지, 폴리올레핀 수지, 시아네트 에스테르 수지, 페놀 수지, 나프탈렌 수지 또는 플루오렌(fluorene) 수지를 주성분으로 하는 재료로 형성되는 것을 특징으로 하는 반도체 장치.
- 제5항에 있어서, 상기 제1단에 이은 제2단 이후의 상기 제2 도전 부재를 피복하는 상기 절연성 수지층은 에폭시 수지, 실리콘 수지, 폴리이미드 수지, 폴리올레핀 수지, 시아네트 에스테르 수지, 페놀 수지, 나프탈렌 수지 또는 플루오렌 수지를 주성분으로 하는 절연성 응력 완충 수지로 형성되는 것을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 상기 반도체 칩의 전극 패드 형성면과 반대의 면에 히트 스프레더(heat spreader)가 방열성 접착제로 고착되어 있는 반도체 장치.
- 제7항에 있어서, 상기 히트 스프레더는 Cu, Al, W, Mo, Fe, Ni 또는 Cr을 주성분으로서 포함하는 금속 재료로 형성되는 것을 특징으로 하는 반도체 장치.
- 제7항에 있어서, 상기 히트 스프레더는 알루미나, AlN, SiC, BN 또는 멀라이트(mullite)를 포함하는 세라믹 재료로 형성되는 것을 특징으로 하는 반도체 장치.
- 제7항에 있어서, 상기 방열성 접착제는 에폭시 수지, 실리콘 수지, 폴리이미드 수지, 폴리올레핀 수지, 시아네트 에스테르 수지, 페놀 수지, 나프탈렌 수지 또는 플루오렌 수지를 주성분으로 하는 재료로 형성되는 것을 특징으로 하는 반도체 장치.
- 제7항에 있어서, 상기 방열성 접착제는 Ag, Pd, Cu, Al, Au, Mo, W, 다이아몬드, 알루미나, AlN, 멀라이트, BN, 또는 SiC를 포함하는 재료로 형성되는 것을 특징으로 하는 반도체 장치.
- 반도체 칩, 상기 반도체 칩에 형성된 전극 패드, 및 상기 전극 패드에 접속된 금속 범프를 포함하는 반도체 장치를 제조하는 방법에 있어서,상기 반도체 칩의 전극 패드의 패턴에 대응하는 패턴을 준비하는 패터닝 처리를 실시한 레지스트막을 금속판의 표면에 형성하는 단계,상기 레지스트막을 마스크로 하여 상기 금속판을 선택적으로 에칭하여 상기 금속판의 저면으로부터 돌출하는 다수의 금속 포스트를 가진 가기판(temporary board)으로 형성하는 단계,상기 전극 패드 상에 형성된 제1 도전 부재를 상기 가기판의 금속 포스트에 접속하는 단계,상기 반도체 칩과 상기 가기판 사이에 탄성을 가진 절연성 수지층을 설치하는 단계,상기 가기판의 저면을 제거하여 상기 금속 포스트를 상기 절연성 수지층으로부터 단면이 노출된 제2 도전 부재로 형성하는 단계, 및상기 제2 도전 부재의 노출된 단면 상에 금속 범프를 탑재하는 단계를 포함하는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제12항에 있어서, 상기 금속판은 제1 금속층 및 제2 금속층을 서로 접합한 클래드 금속판으로 형성되며, 상기 선택적 에칭에 의해서 상기 제1 금속층이 상기 금속 포스트로 형성되고, 상기 제2 금속층이 상기 저면으로 형성되는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제12항에 있어서, 상기 금속판은 열팽창 계수가 서로 다른 제1 및 제2 금속층과 베이스 금속층을 서로 접합한 클래드 금속판으로 형성되며, 상기 선택적 에칭에 의해서 상기 제1 및 제2 금속층은 금속 포스트로 형성되고, 상기 베이스 금속층은 저면으로 형성되는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제13항에 있어서, 상기 제1 금속층은 Cu, Ni, 또는 Cu 및 Ni의 합금 재료로 형성되는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제12항에 있어서, 상기 제2 도전 부재는 다수의 단을 가진 다단 구조로 구성되며, 상기 절연성 수지층은 다층 구조로 구성되고, 상기 제2 도전 부재의 각 단들은 상기 절연성 수지층의 각 층들에 의해서 피복되는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제12항에 있어서, 상기 제1 도전 부재를 상기 금속 포스트에 접속하는 단계에서 상기 금속 포스트에 다수의 반도체 칩의 상기 제1 도전 부재를 접속한 후에, 상기 제2 도전 부재의 상기 노출 단면에 금속 범프를 탑재하는 단계에 앞서 상기 절연성 수지로 피복된 각 반도체 칩을 상호 분리하는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제12항에 있어서, 상기 제2 도전 부재의 노출 단면에 금속 범프를 탑재하는 단계에 앞서, 무전해 Ni/Au 도금 처리, 또는 무전해 Au 도금 처리에 의해서 상기 노출 단면에 금속 박막 전극을 형성하는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제12항에 있어서, 상기 금속판은 하나의 판 부재를 포함하며, 상기 금속 포스트 및 저면은 하프 에칭 처리 또는 프레스 가공에 의해서 상기 하나의 판 부재 상에 형성되는 것을 특징으로 하는 반도체 장치 제조 방법.
- 반도체 칩, 상기 반도체 칩에 형성된 전극 패드, 및 상기 전극 패드에 접속된 금속 범프를 포함하는 반도체 장치를 제조하는 방법에 있어서,상기 반도체 칩의 전극 패드의 패턴에 대응하는 패턴을 준비하는 패터닝 처리를 실시한 레지스트막을 금속판의 표면에 형성하는 단계,상기 레지스트막 형성후 금속판 상에 도금 처리를 하여 다수의 금속 포스트를 형성함으로써 가기판으로 형성하는 단계,상기 반도체 칩의 전극 패드 상에 형성된 제1 도전 부재를 상기 금속 포스트에 접속하는 단계,상기 반도체 칩과 가기판 사이에 탄성을 가진 절연성 수지층을 설치하는 단계,상기 가기판의 금속판을 제거하여 상기 금속 포스트를 상기 절연성 수지층으로부터 단면이 노출된 제2 도전 부재로 형성하는 단계, 및상기 제2 도전 부재의 노출된 단면에 금속 범프를 탑재하는 단계를 포함하는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제20항에 있어서, 상기 제2 도전 부재는 다단 구조로 구성되며, 각 단은 열팽창 계수가 서로 다른 것을 특징으로 하는 반도체 장치 제조 방법.
- 제20항에 있어서, 상기 금속판은 다수의 금속층을 포함하는 것을 특징으로 하는 반도체 장치 제조 방법.
- 제14항에 있어서, 상기 제1 금속층은 Cu, Ni 또는 Cu 및 Ni의 합금 재료로 형성되는 것을 특징으로 하는 반도체 장치 제조 방법.
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2001
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JP2001217340A (ja) | 2001-08-10 |
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