KR100298827B1 - 재배선 기판을 사용한 웨이퍼 레벨 칩 스케일 패키지 제조방법 - Google Patents
재배선 기판을 사용한 웨이퍼 레벨 칩 스케일 패키지 제조방법 Download PDFInfo
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- KR100298827B1 KR100298827B1 KR1019990027786A KR19990027786A KR100298827B1 KR 100298827 B1 KR100298827 B1 KR 100298827B1 KR 1019990027786 A KR1019990027786 A KR 1019990027786A KR 19990027786 A KR19990027786 A KR 19990027786A KR 100298827 B1 KR100298827 B1 KR 100298827B1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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Abstract
Description
Claims (22)
- (a) 웨이퍼 기판에 형성된 칩 패드들과, 상기 칩 패드들을 제외한 상기 웨이퍼 기판의 상부면을 덮고 있는 비활성막을 포함하며, 분할영역에 의하여 서로 구분되는 다수의 집적회로 칩들이 형성된 웨이퍼를 제공하는 단계;(b) 기판 기초층 위에 제1 절연층과 다수의 외부접속 패드를 형성하고, 상기 각각의 외부접속 패드와 전기적으로 연결되도록 상기 제1 절연층과 상기 외부접속 패드 위에 금속 재배선층을 형성하며, 상기 금속 재배선층과 상기 제1 절연층 위에 제2 절연층과 다수의 접합 패드를 형성한 후, 상기 각각의 접합 패드에 접합 범프를 형성하는 것을 포함하는 재배선 기판의 제조 단계;(c) 상기 각각의 접합 범프에 상기 칩 패드를 접합함으로써 상기 웨이퍼와 상기 재배선 기판을 접합하는 단계;(d) 상기 재배선 기판에 상기 각각의 외부접속 패드와 전기적으로 연결되도록 외부접속 단자를 형성하는 단계;(e) 상기 웨이퍼의 분할영역을 따라 상기 웨이퍼를 절단하여 개별 패키지로 분리하는 단계를 포함하는 칩 스케일 패키지의 제조방법.
- 제 1 항에 있어서, 상기 (d) 단계는 상기 재배선 기판의 기판 기초층을 전부 제거하여 상기 외부접속 패드를 외부로 노출시키고, 상기 외부접속 패드의 각각에 외부접속 단자를 형성하는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 1 항에 있어서, 상기 (d) 단계는 상기 재배선 기판의 외부접속 패드에 기판 기초층이 남도록 상기 기판 기초층을 일부 제거하는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 2 항 또는 제 3 항에 있어서, 상기 (c) 단계는 상기 웨이퍼와 상기 재배선 기판 사이의 접합 틈새에 완충층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 2 항 또는 제 3 항에 있어서, 상기 (a) 단계는 상기 각각의 칩 패드에 금속 기저층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 2 항 또는 제 3 항에 있어서, 상기 (b) 단계의 제1 절연층과 제2 절연층은 벤조사이클로부텐 또는 폴리이미드로 이루어지는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 2 항 또는 제 3 항에 있어서, 상기 (b) 단계의 접합 범프는 상기 접합 패드에 솔더 범프를 도금한 후 리플로우하여 형성되는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 2 항 또는 제 3 항에 있어서, 상기 (c) 단계의 접합은 180~230℃에서 약 1분간 이루어지는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 2 항 또는 제 3 항에 있어서, 상기 기판 기초층은 금속으로 이루어지며 상기 (d) 단계에서 습식식각에 의하여 제거되는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 4 항에 있어서, 상기 완충층은 상기 웨이퍼와 상기 재배선 기판이 접합된 후에 상기 접합 틈새에 점도가 있는 액상 중합체를 채우고 경화함으로써 형성되는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 4 항에 있어서, 상기 완충층은 상기 웨이퍼와 상기 재배선 기판이 접합되기 전에 상기 접합 틈새에 탄성 중합체를 끼워넣음으로써 형성되는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
- (a) 웨이퍼 기판에 형성된 칩 패드들과, 상기 칩 패드들을 제외한 상기 웨이퍼 기판의 상부면을 덮고 있는 비활성막으로 이루어진 다수의 집적회로 칩들을 포함하는 웨이퍼를, 상기 집적회로 칩들을 구분하는 분할영역을 따라 절단하여 각각의 개별 칩으로 분리하는 단계;(b) 기판 기초층 위에 제1 절연층과 다수의 외부접속 패드를 형성하고, 상기 각각의 외부접속 패드와 전기적으로 연결되도록 상기 제1 절연층과 상기 외부접속 패드 위에 금속 재배선층을 형성하며, 상기 금속 재배선층과 상기 제1 절연층 위에 제2 절연층과 다수의 접합 패드를 형성한 후, 상기 각각의 접합 패드에 접합 범프를 형성하는 것을 포함하는 재배선 기판의 제조 단계;(c) 상기 각각의 접합 범프에 상기 칩 패드를 접합함으로써 상기 재배선 기판과 상기 개별 칩들을 접합하는 단계;(d) 상기 각각의 개별 칩에 대응하여 상기 재배선 기판을 절단하는 단계;(e) 상기 재배선 기판에 상기 각각의 외부접속 패드와 전기적으로 연결되도록 외부접속 단자를 형성하는 단계를 포함하는 칩 스케일 패키지의 제조방법.
- 제 12 항에 있어서, 상기 (e) 단계는 상기 재배선 기판의 기판 기초층을 전부 제거하여 상기 외부접속 패드를 외부로 노출시키고, 상기 외부접속 패드의 각각에 외부접속 단자를 형성하는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 12 항에 있어서, 상기 (e) 단계는 상기 재배선 기판의 외부접속 패드에 기판 기초층이 남도록 상기 기판 기초층을 일부 제거하는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 13 항 또는 제 14 항에 있어서, 상기 (c) 단계는 상기 각각의 개별 칩과상기 재배선 기판 사이의 접합 틈새에 완충층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 13 항 또는 제 14 항에 있어서, 상기 (a) 단계는 상기 각각의 칩 패드에 금속 기저층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 13 항 또는 제 14 항에 있어서, 상기 (b) 단계의 제1 절연층과 제2 절연층은 벤조사이클로부텐 또는 폴리이미드로 이루어지는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 13 항 또는 제 14 항에 있어서, 상기 (b) 단계의 접합 범프는 상기 접합 패드에 솔더 범프를 도금한 후 리플로우하여 형성되는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 13 항 또는 제 14 항에 있어서, 상기 (c) 단계의 접합은 180~230℃에서 약 1분간 이루어지는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 13 항 또는 제 14 항에 있어서, 상기 기판 기초층은 금속으로 이루어지며 상기 (e) 단계에서 습식식각에 의하여 제거되는 것을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 15 항에 있어서, 상기 완충층은 상기 개별 칩들과 상기 재배선 기판이 접합된 후에 상기 접합 틈새에 점도가 있는 액상 중합체를 채우고 경화함으로써 형성되는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
- 제 15 항에 있어서, 상기 완충층은 상기 개별 칩들과 상기 재배선 기판이 접합되기 전에 상기 접합 틈새에 탄성 중합체를 끼워넣음으로써 형성되는 것임을 특징으로 하는 칩 스케일 패키지의 제조방법.
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KR1019990027786A KR100298827B1 (ko) | 1999-07-09 | 1999-07-09 | 재배선 기판을 사용한 웨이퍼 레벨 칩 스케일 패키지 제조방법 |
US09/482,160 US6235552B1 (en) | 1999-07-09 | 2000-01-12 | Chip scale package and method for manufacturing the same using a redistribution substrate |
JP2000132387A JP3759689B2 (ja) | 1999-07-09 | 2000-05-01 | 半導体パッケージの製造方法 |
US09/853,950 US6407459B2 (en) | 1999-07-09 | 2001-05-10 | Chip scale package |
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KR1019990027786A KR100298827B1 (ko) | 1999-07-09 | 1999-07-09 | 재배선 기판을 사용한 웨이퍼 레벨 칩 스케일 패키지 제조방법 |
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US9041215B2 (en) | 2013-03-12 | 2015-05-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | Single mask package apparatus and method |
KR101571604B1 (ko) * | 2013-03-12 | 2015-11-24 | 타이완 세미콘덕터 매뉴팩쳐링 컴퍼니 리미티드 | 단일 마스크 패키지 장치 및 방법 |
US9530757B2 (en) | 2013-03-12 | 2016-12-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Single mask package apparatus |
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US20010020737A1 (en) | 2001-09-13 |
KR20010009429A (ko) | 2001-02-05 |
JP2001035965A (ja) | 2001-02-09 |
US6407459B2 (en) | 2002-06-18 |
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US6235552B1 (en) | 2001-05-22 |
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