KR100629498B1 - 마이크로 패키지, 멀티―스택 마이크로 패키지 및 이들의제조방법 - Google Patents
마이크로 패키지, 멀티―스택 마이크로 패키지 및 이들의제조방법 Download PDFInfo
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- KR100629498B1 KR100629498B1 KR1020050064314A KR20050064314A KR100629498B1 KR 100629498 B1 KR100629498 B1 KR 100629498B1 KR 1020050064314 A KR1020050064314 A KR 1020050064314A KR 20050064314 A KR20050064314 A KR 20050064314A KR 100629498 B1 KR100629498 B1 KR 100629498B1
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Abstract
Description
Claims (24)
- 회로모듈인 디바이스를 실장하기 위한 디바이스 기판;상기 디바이스를 보호하기 위한 보호 캡;상기 디바이스 기판 상부의 소정 영역에 패터닝되어 형성되며, 상기 디바이스 기판과 상기 보호 캡을 접합하기 위한 복수의 접합 물질;상기 디바이스 기판과 상기 복수의 접합물질 외측 및 상기 보호 캡의 외측 및 상부 소정 영역에 형성되는 복수의 금속층;상기 보호 캡 상부의 소정 영역에 각각 형성되는 솔더 마스크 및 복수의 금속 기저층;상기 금속 기저층의 하부에 위치하는 상기 보호 캡을 소정 형태로 식각하여 형성되는 복수의 제1, 제2 비아(Via); 및상기 복수의 금속 기저층 상부에 각각 형성되는 외부신호 접속단자인 복수의 솔더 범퍼(solder bumper);를 포함하는 것을 특징으로 하는 마이크로 패키지.
- 제1항에 있어서, 상기 디바이스 기판은,반도체 웨이퍼로 이루어진 제1 기판;상기 제1 기판 상부에 실장되는 회로 모듈인 제1 디바이스; 및상기 제1 디바이스에 전기적 접속을 제공하는 제1 패드;를 포함하는 것을 특징으로 하는 마이크로 패키지.
- 제1항에 있어서, 상기 보호 캡은,실리콘, 고저항 실리콘, 글래스(glass), 리튬 탄탈옥사이드 및 세라믹 물질 중 어느 하나로 이루어진 제2 기판;을 포함하는 것을 특징으로 하는 마이크로 패키지.
- 제3항에 있어서, 상기 보호 캡은,상기 제2 기판 하부에 실장되는 회로 모듈인 제2 디바이스; 및상기 제2 디바이스에 전기적 접속을 제공하는 제2 패드;를 더 포함하는 것을 특징으로 하는 마이크로 패키지.
- 제1항에 있어서, 상기 접합 물질은,이방성 도전성 필름(anisotropic conductive film)인 것을 특징으로 하는 마이크로 패키지.
- 제1항에 있어서, 상기 금속층은,상기 마이크로 패키지 내부의 소자를 보호하고, 외부로부터 수분이나 불필요한 가스(gas)가 흡수되는 것을 방지하는 것을 특징으로 하는 마이크로 패키지.
- 제6항에 있어서, 상기 금속층은,금(Au), 주석(Sn), 인듐(In), 납(Pb), 은(Ag), 비스무스(Bi), 아연(Zn), 구리(Cu), 알루미늄(Al) 및 이들의 합금 중 어느 하나인 것을 특징으로 하는 마이크로 패키지.
- 제1항에 있어서, 상기 금속층 및 상기 비아는,전기 및 무전해 도금, 스퍼터링 방법, 전자빔 중 어느 하나의 방법에 의해 증착되는 것을 특징으로 하는 마이크로 패키지.
- 제1항에 있어서, 상기 소정 형태는,'v' 형태인 것을 특징으로 하는 마이크로 패키지.
- 회로모듈인 디바이스를 실장하기 위한 디바이스 기판;상기 디바이스를 보호하기 위한 보호 캡;상기 디바이스 기판 상부의 소정 영역에 패터닝되어 형성되며, 상기 디바이스 기판과 상기 보호 캡을 접합하기 위한 복수의 접합 물질;상기 디바이스 기판과 상기 복수의 접합 물질 외측 및 상기 보호 캡의 외측 및 상부 소정 영역에 형성되는 복수의 금속층;상기 보호 캡 상부의 소정 영역에 각각 형성되는 솔더 마스크 및 복수의 금속 기저층;상기 금속 기저층의 하부에 위치하는 상기 보호 캡 및 상기 접합 물질을 소정 형태로 식각하여 형성되는 복수의 제3, 제4 비아(Via); 및상기 복수의 금속 기저층 상부에 각각 형성되는 외부신호 접속단자인 복수의 솔더 범퍼(solder bumper);를 포함하는 것을 특징으로 하는 마이크로 패키지.
- 제10항에 있어서, 상기 접합 물질은,BCB(benzocyclobutene), DFR(dry film resist), 에폭시(epoxy), 실리콘(silicon), 우레탄(urethane) 중 어느 하나인 것을 특징으로 하는 마이크로 패키지.
- 제1항의 마이크로 패키지가 수직방향으로 다수 개 적층된 구조를 갖는 것을 특징으로 하는 멀티-스택 마이크로 패키지.
- 제10항의 마이크로 패키지가 수직방향으로 다수 개 적층된 구조를 갖는 것을 특징으로 하는 멀티-스택 마이크로 패키지.
- (a) 디바이스 기판 상부의 소정 영역에 복수의 접합 물질이 패터닝되어 형성되는 단계;(b) 상기 복수의 접합 물질을 통해 상기 디바이스 기판과 보호 캡이 접합되는 웨이퍼 접합 단계;(c) 복수의 금속층 및 복수의 비아를 형성하기 위해 디바이스 기판, 상기 복수의 접합 물질 및 상기 보호 캡의 소정 영역을 식각하는 단계;(d) 식각된 영역에 복수의 금속층 및 복수의 비아를 증착하는 단계;(e) 상기 복수의 비아 및 상기 보호 캡의 상부 소정 영역에 걸쳐 복수의 금속 기저층이 형성되는 단계;(f) 상기 보호 캡 상부의 소정 영역에 솔더 마스크(solder mask)가 형성되는 단계;(g) 상기 복수의 금속 기저층 상면에 외부신호 접속단자인 복수의 솔더 범프(solder bump)가 형성되는 단계; 및(h) 상기 금속층을 절단하여 웨이퍼를 각각의 반도체 칩으로 분리하는 단계;를 포함하는 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제14항에 있어서, 상기 디바이스 기판은,반도체 웨이퍼로 이루어진 제1 기판;상기 제1 기판 상부에 실장되는 회로 모듈인 제1 디바이스; 및상기 제1 디바이스에 전기적 접속을 제공하는 제1 패드;를 포함하는 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제14항에 있어서, 상기 보호 캡은,실리콘, 고저항 실리콘, 글래스, 리튬 탄탈옥사이드 및 세라믹 물질 중 어느 하나로 이루어진 제2 기판;을 포함하는 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제16항에 있어서, 상기 보호 캡은,상기 제2 기판 하부에 실장되는 회로 모듈인 제2 디바이스; 및상기 제2 디바이스에 전기적 접속을 제공하는 제2 패드;를 더 포함하는 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제14항에 있어서, 상기 접합 물질은,이방성 도전성 필름(anisotropic conductive film)인 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제14항에 있어서, 상기 금속층은,상기 마이크로 패키지 내부의 소자를 보호하고, 외부로부터 수분이나 불필요한 가스(gas)가 흡수되는 것을 방지하는 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제19항에 있어서, 상기 금속층은,금(Au), 주석(Sn), 인듐(In), 납(Pb), 은(Ag), 비스무스(Bi), 아연(Zn), 구리(Cu), 알루미늄(Al) 및 이들의 합금 중 어느 하나인 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제14항에 있어서, 상기 금속층 및 상기 비아는,전기 및 무전해 도금, 스퍼터링 방법, 전자빔 중 어느 하나의 방법에 의해 증착되는 것을 특징으로 하는 마이크로 패키지의 제조방법.
- 제14항에 있어서, 상기 소정 형태는,'v' 형태인 것을 특징으로 하는 마이크로 패키지.
- 제14항의 (a) 내지 (f) 단계;(g) 접속용 비아를 형성하기 위해 상기 디바이스 기판의 소정 영역이 소정 형태로 식각된 후, 식각된 영역에 복수의 접속용 비아가 증착되는 단계;(h) 상기 복수의 접속용 비아 하부에 복수의 접속 패드가 형성되는 단계;(i) 복수의 접합 물질을 통해 상기 (h) 단계에서 제작된 패키지들이 적어도 2개 이상 수직으로 적층되는 단계; 및(j) 적층된 패키지들 중 가장 위에 위치하는 패키지에서, 복수의 금속 기저층 상부에 외부신호 접속단자인 복수의 솔더 범퍼(solder bumper)가 각각 형성되는 단계;를 포함하는 것을 특징으로 하는 멀티-스택 마이크로 패키지의 제조방법.
- 제23항에 있어서,상기 접속용 비아를 형성하기 위해 식각되는 소정 영역의 형태는,'∧'인 것을 특징으로 하는 멀티-스택 마이크로 패키지의 제조방법.
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US11/396,544 US7285865B2 (en) | 2005-07-15 | 2006-04-04 | Micro-package, multi-stack micro-package, and manufacturing method therefor |
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