KR20200018357A - 노출된 다이 후면을 갖는 플립 칩 패키지를 위한 emi 차폐 - Google Patents
노출된 다이 후면을 갖는 플립 칩 패키지를 위한 emi 차폐 Download PDFInfo
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- KR20200018357A KR20200018357A KR1020190097905A KR20190097905A KR20200018357A KR 20200018357 A KR20200018357 A KR 20200018357A KR 1020190097905 A KR1020190097905 A KR 1020190097905A KR 20190097905 A KR20190097905 A KR 20190097905A KR 20200018357 A KR20200018357 A KR 20200018357A
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Abstract
Description
도 2a-2d는 노출된 반도체 다이 후면을 갖는 플립 칩 패키지를 형성함을 도시한 도면.
도 3a-3c는 플립 칩 패키지 위에 형성된 차폐층을 도시한 도면.
도 4a-4e는 반도체 다이의 측면 위에 EMI 차폐층을 형성함을 도시한 도면.
도 5a 및 5b는 측면 EMI 차폐를 갖는 반도체 다이를 갖는 플립 칩 패키지의 실시 예를 도시한 도면.
도 6a 및 6b는 다중 층을 갖는 차폐층을 형성하기 위한 옵션을 도시한 도면.
도 7a-7f는 EMI 차폐층 위에 열 확산기를 추가함을 도시한 도면.
도 8은 상이한 유형의 패키지가 PCB의 표면에 장착된 인쇄 회로 기판 (PCB)을 도시한 도면.
Claims (15)
- 기판;
기판 위에 배치된 반도체 다이;
반도체 다이 및 기판 위에 증착된 밀봉재- 반도체 다이의 표면이 밀봉재(encapsulant)로부터 노출됨; 그리고
상기 반도체 다이 위에 형성된 제1 차폐층-상기 제1 차폐층은 복수의 층을 포함 함-을 포함하는 반도체 장치. - 제1항에 있어서, 제1 차폐층이:
반도체 다이의 표면과 접촉하는 스테인레스 강 층; 그리고
스테인레스 강 층 위에 형성된 구리 층을 포함함을 특징으로 하는 반도체 장치. - 제2항에 있어서, 제1 차폐층이 구리 층위에 형성된 보호 층을 더욱 포함함을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 제1 차폐층위에 형성된땜납 층(solder layer)을 더욱 포함함을 특징으로 하는 반도체 장치.
- 제4항에 있어서, 상기땜납 층을 통하여 반도체 다이에 접착된 히트 싱크를 더욱 포함함을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 반도체 다이의 측면 표면위에 형성된 제2 차폐층을 더욱 포함함을 특징으로 하는 반도체 장치.
- 반도체 다이;
상기 반도체 다이 위에 증착된 밀봉재; 그리고
상기 반도체 다이 상에 형성된 제1 차폐층-상기 제1 차폐층은 복수의 층을 포함 함-을 포함하는 반도체 장치. - 제7항에 있어서, 제1 차폐층이 제1 스테인레스 강 층을 포함함을 특징으로 하는 반도체 장치.
- 제8항에 있어서, 상기 제1 차폐층이:
제1 스테인레스 강 층 위에 형성된 구리 층; 그리고
상기 구리 층 위에 형성된 제2 스테인레스 강 층을 포함함을 특징으로 하는 반도체 장치. - 제7항에 있어서, 반도체 다이의 측면 표면 상에 형성된 제2 차폐층; 그리고
제2 반도체 다이의 접촉 패드와 제2 차폐층 사이에 결합된 전도성 트레이스를 더욱 포함함을 포함함을 특징으로 하는 반도체 장치. - 반도체 다이를 제공하고;
상기 반도체 다이 위에 밀봉재를 증착하며, 반도체 다이의 표면이 상기 밀봉재로부터 노출되고; 그리고
상기 반도체 다이의 표면 위에 차폐층을 형성하며, 차폐층은 복수의 층을 포함하는 반도체 장치 생산 방법. - 제11항에 있어서,
상기 차폐층 위에 마스킹 층을 배치하고;
상기 마스킹 층의 개구부에땜납 페이스트를 증착하며;
상기 마스킹 층을 제거하고; 그리고
상기 마스킹 층을 제거한 후땜납 페이스트를 리플로우함을 더욱 포함함을 특징으로 하는 반도체 장치 생산 방법. - 제12항에 있어서, 상기땜납 페이스트 위에 히트 싱크를 배치함을 더욱 포함함을 특징으로 하는 반도체 장치 생산 방법.
- 제11항에 있어서,
반도체 다이를 포함하는 반도체 웨이퍼를 제공하고;
반도체 다이에 인접한 반도체 웨이퍼 내에 트랜치를 형성하며;
상기 트랜치 내에 전도성 물질을 증착하고; 그리고
상기 전도성 물질을 증착 한 후 트렌치를 통해 반도체 웨이퍼로부터 반도체 다이를 싱귤 레이션함을 더욱 포함함을 특징으로 하는 반도체 장치 생산 방법. - 제14항에 있어서, 상기 전도성 다이 위에 그리고 상기 전도성 물질에 연결된 전도성 트레이스를 형성시킴을 더욱 포함함을 특징으로 하는 반도체 장치 생산 방법.
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CN110828424A (zh) | 2020-02-21 |
US11342278B2 (en) | 2022-05-24 |
KR102598455B1 (ko) | 2023-11-06 |
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