KR20160126290A - 인쇄회로기판, 반도체 패키지 및 그 제조방법 - Google Patents
인쇄회로기판, 반도체 패키지 및 그 제조방법 Download PDFInfo
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Abstract
본 발명의 인쇄회로기판은 다이와의 연결을 위한 금속 포스트를 높이 공차를 확보하고 기판 내에 함몰된 구조로 형성함으로써 소자 실장 시 솔더 브릿지에 의한 쇼트 발생을 방지할 수 있다.
Description
도 2는 본 발명의 제 2 실시 예에 따른 인쇄회로기판을 도시한 단면도이다.
도 3은 본 발명의 반도체 패키지의 구조를 도시한 단면도이다.
도 4는 본 발명에 따른 금속 포스트의 형상을 구체적으로 도시한 도면이다.
도 5 내지 도 16은 본 발명의 일 실시 예에 따른 인쇄회로기판의 제조방법에 대한 공정 단면도이다.
120, 220, 320 --- 절연층
130, 230, 330 --- 제 2 금속층
131, 231, 331 --- 회로층
150, 270, 350 --- 솔더 레지스트
160 --- 딤플
170, 280, 390 --- 금속 포스트
Claims (19)
- 절연층;
상기 절연층의 하면에 형성된 회로층;
상기 회로층과 연결되며, 상기 절연층의 하면에서 상면으로 연장되어 형성된 금속 포스트를 포함하는 인쇄회로기판.
- 청구항 1에 있어서,
상기 절연층의 상면은 상기 금속 포스트의 측면 중 일부 및 상면이 노출되도록 딤플 형상으로 형성된 인쇄회로기판.
- 청구항 1에 있어서,
상기 금속 포스트는 제 1 금속층과 상기 제 1 금속층의 일면에 형성된 제 2 금속층을 포함하는 인쇄회로기판.
- 청구항 3에 있어서,
상기 제 1 금속층은 상면에서 하면으로 갈수록 작아지도록 테이퍼 형상을 가지며, 상기 제 2 금속층은 상면에서 하면으로 갈수록 직경이 넓어지도록 테이퍼 형상을 가지는 인쇄회로기판.
- 청구항 4에 있어서,
상기 제 1 금속층의 하면의 직경은 상기 제 2 금속층의 상면의 직경보다 크게 인쇄회로기판.
- 청구항 1에 있어서,
상기 금속 포스트는 구리 또는 구리를 포함하는 합금으로 형성된 인쇄회로기판.
- 청구항 1에 있어서,
상기 절연층상에 상기 제 1 금속층이 형성된 영역 및 상기 회로층이 노출되도록 개구부를 갖는 솔더 레지스트층을 더 형성하는 인쇄회로기판.
- 청구항 1에 있어서,
상기 회로층상에 빌드업 절연층 및 빌드업 회로층을 포함하는 빌드업층을 더 형성하는 인쇄회로기판.
- 절연층;
상기 절연층의 하면에 형성된 회로층;
상기 회로층과 연결되며, 상기 절연층의 하면에서 상면으로 연장되어 형성된 금속 포스트를 포함하는 인쇄회로기판과;
상기 인쇄회로기판의 상부에 실장된 소자를 포함하는 반도체 패키지.
- 청구항 9에 있어서,
상기 소자는 상기 금속 포스트와 외부접속단자를 매개로 연결되는 반도체 패키지.
- 캐리어 부재의 양면에 금속 물질층을 형성하는 단계;
상기 금속 물질층을 에칭하여 제 1 금속층을 형성하는 단계;
상기 제 1 금속층이 매립되도록 절연층을 형성하는 단계;
상기 캐리어 부재를 분리하는 단계;
상기 캐리어 부재로부터 분리된 절연층의 일면에 상기 제 1 금속층과 전기적으로 연결되도록 제 2 금속층을 형성하는 단계; 및
상기 제 1 금속층의 측면 중 일부가 노출되도록 상기 절연층을 딤플 형상으로 가공하는 단계를 포함하는 인쇄회로기판의 제조방법.
- 청구항 11에 있어서,
상기 캐리어 부재로부터 분리된 절연층의 일면에 상기 제 1 금속층과 전기적으로 연결되도록 제 2 금속층을 형성하는 단계는,
상기 제 2 금속층이 형성된 상기 절연층의 일면에 회로 패턴을 형성하는 단계;
상기 회로 패턴이 형성된 절연층상에 화학동 도금을 형성하는 단계; 및
상기 화학동 도금상에 드라이 필름을 형성하여 에칭하는 단계를 포함하는 인쇄회로기판의 제조방법.
- 청구항 11에 있어서,
상기 회로 패턴을 형성하는 단계는 상기 절연층을 관통하는 비아를 포함하여 형성하는 인쇄회로기판의 제조방법.
- 청구항 11에 있어서,
상기 제 2 금속층을 형성하는 단계 이후,
상기 절연층의 상기 제 1 금속층이 형성된 영역 및 상기 제 2 금속층이 노출되도록 개구부를 갖는 솔더 레지스트층을 형성하는 단계를 더 포함하는 인쇄회로기판의 제조방법.
- 청구항 11에 있어서,
상기 제 2 금속층을 형성하는 단계 이후,
상기 제 2 금속층상에 빌드업 회로층 및 빌드업 절연층을 포함하는 빌드업층을 형성하는 단계를 더 포함하는 인쇄회로기판의 제조방법.
- 청구항 11에 있어서,
상기 제 1 금속층은 상면에서 하면으로 갈수록 작아지도록 테이퍼 형상을 갖으며, 상기 제 2 금속층은 상면에서 하면으로 갈수록 직경이 넓어지도록 테이퍼 형상을 가지는 인쇄회로기판의 제조방법.
- 청구항 16에 있어서,
상기 제 1 금속층의 하면의 직경은 상기 제 2 금속층의 상면의 직경보다 크게 인쇄회로기판.
- 청구항 11에 있어서,
상기 제 1 금속층 및 상기 제 2 금속층은 구리 또는 구리를 포함하는 합금으로 형성된 인쇄회로기판의 제조방법.
- 청구항 11에 있어서,
상기 절연층을 딤플 형상으로 가공하는 단계 이후,
상기 노출된 금속층상에 표면처리 공정을 수행하는 단계를 더 포함하는 인쇄회로기판의 제조방법.
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US15/007,557 US10249503B2 (en) | 2015-04-23 | 2016-01-27 | Printed circuit board, semiconductor package and method of manufacturing the same |
JP2016017500A JP6711509B2 (ja) | 2015-04-23 | 2016-02-01 | プリント回路基板、半導体パッケージ及びその製造方法 |
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JP2023068775A (ja) * | 2021-11-04 | 2023-05-18 | 新光電気工業株式会社 | 金属部品及びセラミック基板 |
US11445640B1 (en) | 2022-02-25 | 2022-09-13 | Peter C. Salmon | Water cooled server |
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US10249503B2 (en) | 2019-04-02 |
JP2016208007A (ja) | 2016-12-08 |
JP6711509B2 (ja) | 2020-06-17 |
KR102472945B1 (ko) | 2022-12-01 |
US20160315042A1 (en) | 2016-10-27 |
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