KR101806596B1 - 팬아웃 패키지 및 그 형성 방법 - Google Patents
팬아웃 패키지 및 그 형성 방법 Download PDFInfo
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- KR101806596B1 KR101806596B1 KR1020140185941A KR20140185941A KR101806596B1 KR 101806596 B1 KR101806596 B1 KR 101806596B1 KR 1020140185941 A KR1020140185941 A KR 1020140185941A KR 20140185941 A KR20140185941 A KR 20140185941A KR 101806596 B1 KR101806596 B1 KR 101806596B1
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Abstract
Description
도 1 내지 도 8은 일 실시예에 따른 제조 공정 중의 여러 구조물의 단면도를 나타낸다.
Claims (10)
- 기판, 및 상기 기판 상의 접촉 패드를 포함하는 칩;
상기 칩을 측방향으로 캡슐화하는(encapsulating) 몰딩 화합물로서, 상기 몰딩 화합물 중 어느 부분도 상기 칩과 수직으로 정렬되지 않는 것인, 몰딩 화합물;
상기 몰딩 화합물 및 상기 칩 위에 놓이며, 상기 접촉 패드를 노출시키는 제1 개구부를 갖는 제1 유전체층;
상기 제1 유전체층 위에 놓이며, 상기 제1 개구부를 채우고 상기 몰딩 화합물 위에 측방향으로 연장되는 제1 금속화층으로서, 상기 제1 개구부 내의 상기 제1 금속화층은 상기 제1 개구부 위에서 평탄한 상부 표면을 갖되 높이(H)와 이 높이(H)보다 큰 폭(W)을 갖고, 상기 평탄한 상부 표면은 상기 제1 유전체층의 상부 표면보다 상기 기판으로부터 더 멀리에 있고, 상기 제1 금속화층의 측방향으로 연장된 부분은 상기 평탄한 상부 표면보다 상기 기판으로부터 더 멀리에 있는 상부 표면을 갖는 것인, 제1 금속화층;
상기 제1 금속화층 및 상기 제1 유전체층 위에 놓이며, 상기 제1 개구부 위에 제2 개구부를 갖는 제2 유전체층; 및
상기 제2 유전체층 위에 놓이며, 상기 제2 개구부를 통해 상기 제1 금속화층에 전기적으로 연결되고, 상기 몰딩 화합물 위에 측방향으로 연장되는 제2 금속화층을 포함하는 패키지. - 제1항에 있어서, 상기 제2 금속화층은 상기 제2 개구부 내에 형성되며, 상기 제1 금속화층에 물리적으로 접촉되는 것인 패키지.
- 제1항에 있어서, 상기 제2 금속화층은 상기 제2 개구부의 측벽 및 저부에 라이닝(lining)되는 것인 패키지.
- 제1항에 있어서, 상기 제1 금속화층은 제1 시드층, 및 상기 제1 시드층 상에 형성된 제1 도전층을 포함하는 것인 패키지.
- 제1항에 있어서, 상기 제2 금속화층은 제2 시드층, 및 상기 제2 시드층 상에 형성된 제2 도전층을 포함하는 것인 패키지.
- 제1항에 있어서, 상기 제2 금속화층 상의 범프를 더 포함하는 패키지.
- 제6항에 있어서, 상기 제2 금속화층 및 상기 제2 유전체층 위에 놓이고, 상기 범프의 일부의 주위에 있는 보호층이 추가로 포함되는 패키지.
- 제1항에 있어서, 상기 칩은, 상기 기판 상에 있으며 상기 접촉 패드의 일부를 덮는 패시베이션층을 포함하고, 상기 제1 유전체층이 상기 패시베이션층 위에 놓이는 것인 패키지.
- 기판, 및 상기 기판 상의 접촉 패드를 포함하는 칩으로서, 상기 접촉 패드는 칩 패시베이션층에 의해 덮이고, 상기 칩 패시베이션층은 상기 접촉 패드의 상부 표면을 노출시키기 위해 상기 칩 패시베이션층 내부에 형성된 접촉 개구를 갖는 것인, 칩;
상기 칩을 측방향으로 캡슐화하는 몰딩 화합물로서, 상기 몰딩 화합물의 상부 표면은 상기 칩 패시베이션층의 상부 표면보다 상기 접촉 패드로부터 수직 방향으로 더 멀리 있는 것인, 몰딩 화합물;
상기 몰딩 화합물 및 상기 칩 위에 놓이며, 상기 접촉 패드의 상부 표면을 노출시키는 제1 개구부를 갖는 제1 유전체층;
상기 제1 유전체층 위에 놓이며, 상기 제1 개구부의 측벽 및 저부에 라이닝되는 제1 시드층;
상기 제1 시드층 위에 놓이며, 상기 제1 개구부를 완전히 채우는 제1 도전층으로서, 상기 제1 개구부 내의 상기 제1 도전층은, 상기 제1 유전체층의 상부 표면보다 상기 기판으로부터 더 멀리에 있되 상기 제1 개구부 위에 있는 평탄한 상부 표면을 갖고, 높이(H)와 이 높이(H)보다 큰 폭(W)을 갖는 것인, 제1 도전층;
상기 제1 도전층 위에 놓이며, 상기 제1 개구부 바로 위에 제2 개구부를 갖는 제2 유전체층;
상기 제2 유전체층 위에 놓이며, 상기 제2 개구부의 측벽 및 저부에 라이닝되는 제2 시드층; 및
상기 제2 시드층 위에 놓인 제2 도전층을 포함하는 패키지. - 기판 상에 접촉 패드를 갖는 칩을 제공하는 단계;
상기 칩을 측방향으로 캡슐화하는 몰딩 화합물 - 상기 몰딩 화합물을 통하여 상기 접촉 패드가 노출되며, 상기 몰딩 화합물 중 어느 부분도 상기 칩과 수직으로 정렬되지 않음 - 을 형성하는 단계;
상기 몰딩 화합물 및 상기 칩 위에 제1 유전체층을 형성하는 단계;
상기 제1 유전체층 내에, 상기 접촉 패드를 노출시키는 제 1 개구부를 형성하는 단계;
상기 제1 유전체층 위에 놓이며, 상기 제1 개구부를 채우는 제1 도전층을 형성하는 단계로서, 상기 제1 개구부 내의 상기 제1 도전층은 상기 제1 개구부 위에서 평탄한 상부 표면을 가지고, 높이(H)와 이 높이(H)보다 큰 폭(W)을 가지며, 상기 평탄한 상부 표면은 상기 제1 유전체층의 상부 표면보다 상기 기판으로부터 더 멀리에 있고, 상기 제1 도전층의 측방향으로 연장된 부분은 상기 평탄한 상부 표면보다 상기 기판으로부터 더 멀리에 있는 상부 표면을 갖는 것인, 제1 도전층을 형성하는 단계;
상기 제1 도전층 및 상기 제1 유전체층 위에 제2 유전체층을 형성하는 단계;
상기 제2 유전체층 내에, 상기 제1 개구부 위의 상기 제1 도전층을 노출시키는 제2 개구부를 형성하는 단계; 및
상기 제2 유전체층 위에 놓이며, 상기 제2 개구부를 통해 상기 제1 도전층과 물리적으로 접촉하는 제2 도전층을 형성하는 단계를 포함하는 반도체 패키지를 형성하기 위한 방법.
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US9824989B2 (en) | 2017-11-21 |
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