KR101925951B1 - 다중 적층에 대한 전체 패키지 크기 감소를 위한 스티치 범프 적층 설계 - Google Patents
다중 적층에 대한 전체 패키지 크기 감소를 위한 스티치 범프 적층 설계 Download PDFInfo
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- KR101925951B1 KR101925951B1 KR1020137005998A KR20137005998A KR101925951B1 KR 101925951 B1 KR101925951 B1 KR 101925951B1 KR 1020137005998 A KR1020137005998 A KR 1020137005998A KR 20137005998 A KR20137005998 A KR 20137005998A KR 101925951 B1 KR101925951 B1 KR 101925951B1
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Abstract
Description
도 1은 증가된 본드 핑거 길이를 나타내는 종래 기술에 따른 반도체 디바이스의 개략적인 단면을 도시한다.
도 2는 증가된 본드 핑거 길이를 더 도시하는 도 1의 일부에 대한 탑-다운 뷰를 도시한다.
도 3은 복수의 본드 핑거를 더 도시하는 3D 뷰를 도시한다.
도 4a는 본 발명의 일 실시예에 따른 반도체 디바이스의 개략적인 단면을 도시한다.
도 4b는 본 발명의 일 실시예에 따른 반도체 디바이스의 일부의 개략적인 단면을 도시한다.
도 5는 본 발명의 일 실시예에 따른 반도체 디바이스의 3D 뷰를 도시한다.
도 6은 본 발명의 일 실시예에 따른 반도체 디바이스의 개략적인 단면을 도시한다.
도 7은 본 발명의 일 실시예에 따른 방법에 대한 단계들을 도시하는 흐름도를 도시한다.
도 8a-8d는 본 발명의 일 실시예에 따른 반도체 디바이스의 개략적인 단면을 도시한다.
도 9는 본 발명의 일 실시예에 따른 방법에 대한 단계들을 도시하는 흐름도를 도시한다.
도 10a-10d는 본 발명의 일 실시예에 따른 반도체 디바이스의 개략적인 단면을 도시한다.
Claims (20)
- 다이 적층을 위한 방법으로서,
기판 위에 놓이도록 제1 다이를 배치하는 단계;
상기 제1 다이 및 상기 기판의 본드 핑거(bond finger)에 제1 와이어를 접착(bonding)하는 단계 - 상기 제1 와이어는 제1 본드(bond)를 사용하여 상기 본드 핑거에 직접 접착됨 -;
상기 제1 본드 위에 놓이도록 제1 스티치 범프(stitch bump)를 형성하는 단계 - 상기 제1 스티치 범프는 도전성 물질의 용융 볼(molten ball)로부터 형성되고, 상기 제1 스티치 범프는 상기 제1 본드에 직접 접촉함 -;
상기 제1 다이 위에 놓이도록 제2 다이를 배치하는 단계; 및
상기 제2 다이 및 상기 제1 스티치 범프에 제2 와이어를 접착하는 단계 - 상기 제2 와이어는 제2 본드를 사용하여 상기 제1 스티치 범프에 직접 접착되고, 상기 제2 본드는 상기 제1 스티치 범프 위에 놓임 -
를 포함하고,
상기 제1 본드 및 상기 제2 본드는 상기 기판의 본드 핑거 상의 단일 접점 맨 위에 적층되는, 다이 적층을 위한 방법. - 제1항에 있어서,
상기 제2 다이를 배치하는 단계 이전에, 상기 제1 다이 위에 놓이도록 다이 스페이서(die spacer)를 배치하는 단계를 더 포함하고, 상기 다이 스페이서는 상기 제1 다이와 상기 제2 다이 사이에 배치되는, 다이 적층을 위한 방법. - 제2항에 있어서,
상기 제1 다이, 상기 다이 스페이서 및 상기 제2 다이의 밑면들(undersurfaces)은 접착층으로 라미네이트되는(laminated), 다이 적층을 위한 방법. - 제1항에 있어서,
상기 제2 다이를 배치하는 단계 이전에, 상기 제1 다이 위에 놓이도록 FOW(film over wire) 층을 배치하는 단계를 더 포함하고, 상기 FOW는 상기 제1 다이와 상기 제2 다이 사이에 배치되는, 다이 적층을 위한 방법. - 제4항에 있어서,
상기 제1 다이의 밑면은 접착층으로 라미네이트되는, 다이 적층을 위한 방법. - 제1항에 있어서,
상기 제1 본드 및 상기 제2 본드는 스티치 본드들이고, 스티치 본드들은 물고기-꼬리(fish-tail) 형상을 갖는, 다이 적층을 위한 방법. - 제1항에 있어서,
상기 제1 와이어 및 상기 제2 와이어는, 도전성 물질의 용융 볼들을 형성함으로써 상기 제1 다이 및 상기 제2 다이에 각각 접착되는, 다이 적층을 위한 방법. - 다이 적층을 위한 방법으로서,
기판 위에 놓이도록 제1 다이를 배치하는 단계;
상기 제1 다이 및 상기 기판의 본드 핑거에 제1 와이어를 접착하는 단계 - 상기 제1 와이어는 제1 본드를 사용하여 상기 본드 핑거에 직접 접착됨 -;
상기 제1 다이 위에 놓이도록 제2 다이를 배치하는 단계;
상기 제1 본드 위에 놓이도록 제1 스티치 범프를 형성하는 단계 - 상기 제1 스티치 범프는 도전성 물질의 용융 볼로부터 형성되고, 상기 제1 스티치 범프는 상기 제1 본드에 직접 접촉함 -; 및
상기 제2 다이 및 상기 제1 스티치 범프에 제2 와이어를 접착하는 단계 - 상기 제2 와이어는 제2 본드를 사용하여 상기 제1 스티치 범프에 직접 접착되고, 상기 제2 본드는 상기 제1 스티치 범프 위에 놓임 -
를 포함하고,
상기 제1 본드 및 상기 제2 본드는 상기 기판의 본드 핑거 상의 단일 접점 맨 위에 적층되는, 다이 적층을 위한 방법. - 제8항에 있어서,
상기 제2 다이를 배치하는 단계 이전에, 상기 제1 다이 위에 놓이도록 다이 스페이서를 배치하는 단계를 더 포함하고, 상기 다이 스페이서는 상기 제1 다이와 상기 제2 다이 사이에 배치되는, 다이 적층을 위한 방법. - 제9항에 있어서,
상기 제1 다이, 상기 다이 스페이서 및 상기 제2 다이의 밑면들은 접착층으로 라미네이트되는, 다이 적층을 위한 방법. - 제8항에 있어서,
상기 제2 다이를 배치하는 단계 이전에, 상기 제1 다이 위에 놓이도록 FOW(film over wire) 층을 배치하는 단계를 더 포함하고, 제1 FOW은 상기 제1 다이와 상기 제2 다이 사이에 배치되는, 다이 적층을 위한 방법. - 제11항에 있어서,
상기 제1 다이의 밑면은 접착층으로 라미네이트되는, 다이 적층을 위한 방법. - 제8항에 있어서,
상기 제1 본드 및 상기 제2 본드는 스티치 본드들이고, 스티치 본드들은 물고기-꼬리 형상을 갖는, 다이 적층을 위한 방법. - 제8항에 있어서,
상기 제1 와이어 및 상기 제2 와이어는, 도전성 물질의 용융 볼들을 형성함으로써 상기 제1 다이 및 상기 제2 다이에 각각 접착되는, 다이 적층을 위한 방법. - 반도체 디바이스로서,
기판;
상기 기판 위에 놓인 복수의 다이들 - 상기 복수의 다이들은 적층된 구성으로 이루어짐 -; 및
복수의 본드 와이어들 - 각각의 본드 와이어는 상기 복수의 다이들 중 하나의 다이 및 상기 기판의 본드 핑거에 부착되고, 복수의 본드 와이어들은 상기 본드 핑거에 부착되고, 상기 복수의 본드 와이어들의 각각의 본드 와이어는 본드를 사용하여 상기 본드 핑거에 부착되고, 복수의 본드들은 각각의 본드 쌍 사이에 스티치 범프를 갖는 적층된 구성으로 이루어지며, 스티치 범프는 도전성 물질의 용융 볼로부터 형성됨 -
를 포함하고,
상기 복수의 본드들은 상기 기판의 본드 핑거 상의 단일 접점 맨 위에 적층되는, 반도체 디바이스. - 제15항에 있어서,
상기 복수의 다이들은 2개의 다이를 포함하고, 상기 복수의 본드들은, 제1 본드와 제2 본드 사이에 스티치 범프를 갖는 2개의 본드들을 포함하는, 반도체 디바이스. - 제16항에 있어서,
제1 다이와 제2 다이 사이에 제1 다이 스페이서를 더 포함하는, 반도체 디바이스. - 제17항에 있어서,
상기 제1 다이, 상기 제2 다이 및 상기 다이 스페이서의 밑면들은 접착층으로 라미네이트되는, 반도체 디바이스. - 제16항에 있어서,
제1 다이와 제2 다이 사이에 FOW(film over wire) 층을 더 포함하고, 상기 제1 다이에 부착된 적어도 하나의 본드의 일부는 상기 FOW 층에 매립되는(embedded), 반도체 디바이스. - 제19항에 있어서,
상기 제1 다이의 밑면은 접착층으로 라미네이트되는, 반도체 디바이스.
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US12/853,856 US8357563B2 (en) | 2010-08-10 | 2010-08-10 | Stitch bump stacking design for overall package size reduction for multiple stack |
PCT/US2011/047279 WO2012021641A2 (en) | 2010-08-10 | 2011-08-10 | Stitch bump stacking design for overall package size reduction for multiple stack |
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KR20130090173A (ko) * | 2012-02-03 | 2013-08-13 | 삼성전자주식회사 | 반도체 패키지 |
US20160064351A1 (en) * | 2014-08-30 | 2016-03-03 | Skyworks Solutions, Inc. | Wire bonding using elevated bumps for securing bonds |
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WO2018004695A1 (en) * | 2016-07-01 | 2018-01-04 | Intel Corporation | Electronic device packages and methods for maximizing electrical current to dies and minimizing bond finger size |
US11552051B2 (en) * | 2017-04-01 | 2023-01-10 | Intel Corporation | Electronic device package |
JP2019153619A (ja) | 2018-02-28 | 2019-09-12 | 東芝メモリ株式会社 | 半導体装置 |
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JP5816689B2 (ja) | 2015-11-18 |
US20120038059A1 (en) | 2012-02-16 |
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