KR20160043518A - 와이어 본드를 갖는 파워 오버레이 구조 및 그 제조 방법 - Google Patents
와이어 본드를 갖는 파워 오버레이 구조 및 그 제조 방법 Download PDFInfo
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Abstract
Description
도면에서,
도 1은 공지된 종래 기술에 따른 와이어 본딩된 파워 패키지 구조의 개략적인 측부 단면도이다.
도 2 내지 도 6은 본 발명의 실시예에 따른 파워 오버레이(POL) 구조를 제조하는 다양한 단계 동안의 개략적인 측부 단면도이다.
도 7은 본 발명의 다른 실시예에 따른, 와이어 본드가 통합된 도 6의 POL 구조들 중 하나의 개략적인 측부 단면도이다.
도 8 및 도 9는 본 발명의 다른 실시예에 따른, 와이어 본드를 갖는 POL 구조의 개략적인 상부도 및 측부 단면도이다.
도 10 및 도 11은 본 발명의 또 다른 실시예에 따른, 와이어 본드를 갖는 POL 구조의 개략적인 상부도 및 측부 단면도이다.
도 12는 본 발명의 실시예에 따른, POL 구조가 통합된 재구성된 웨이퍼를 도시하는 개략적인 측부 단면도이다.
도 13은 본 발명의 다른 실시예에 따른, POL 구조가 통합된 재구성 된 웨이퍼를 도시하는 개략적인 측부 단면도이다.
도 14는 본 발명의 실시예에 따른, POL 조립체의 개략적인 측부 단면도이다.
도 15는 본 발명의 다른 실시예에 따른, POL 조립체의 개략적인 측부 단면도이다.
38: 반도체 디바이스
80: 금속 경로
84, 86: 금속 상호 연결
96, 98, 100: 와이어 본드
90, 92, 94: 개별 POL 구조
128: 콘택 표면
Claims (23)
- 파워 오버레이(POL) 구조로서,
파워 디바이스의 상부면 상에 배치되는 적어도 하나의 상부 콘택 패드를 갖는 파워 디바이스와,
상기 파워 디바이스의 상부면과 결합되는 유전체층 및 상기 유전체층을 통하여 형성되는 비아들을 통해 연장되고 상기 파워 디바이스의 상기 적어도 하나의 상부 콘택 패드와 전기적으로 결합되는 금속 상호 연결을 갖는 금속층을 포함하는 POL 상호 연결층과,
상기 금속층에 직접 결합되는 적어도 하나의 구리 와이어 본드를 포함하는 것인 POL 구조. - 제 1 항에 있어서,
상기 적어도 하나의 상부 콘택 패드는 알루미늄을 포함하는 것인 POL 구조. - 제 1 항에 있어서,
솔더층과 함께 상기 파워 디바이스의 하부 콘택 패드와 열적으로 또한 전기적으로 결합되는 다층 기판을 더 포함하며, 상기 다층 기판은 직접 본드 구리(DBC)와 직접 본드 알루미늄(DBA) 기판 중 하나를 포함하는 것인 POL 구조. - 제 1 항에 있어서,
상기 유전체층은 상기 적어도 하나의 구리 와이어 본드의 콘택 위치 아래에서 실질적으로 균일한 두께를 갖는 것인 POL 구조. - 제 1 항에 있어서,
상기 유전체층은 접착제층을 통해 상기 파워 디바이스의 상부면과 결합되는 것인 POL 구조. - 제 1 항에 있어서,
상기 와이어 본드의 콘택 표면과 상기 파워 디바이스 사이에 배치되는 POL 상호 연결층의 일부는 상기 유전체층을 갖지 않는 것인 POL 구조. - 제 1 항에 있어서,
상기 금속층의 상부면 아래에 위치되는 상부 콘택 표면을 갖는 금속 상호 연결과,
상기 금속 상호 연결의 상부 콘택 표면에 결합되는 구리 와이어 본드를 더 포함하고,
상기 상부 와이어 본드의 콘택 표면의 표면 영역은 상기 금속 상호 연결의 상부 콘택 표면의 표면 영역보다 작은 것인 POL 구조. - 제 1 항에 있어서,
상기 적어도 하나의 와이어 본드의 콘택 표면은 금속 상호 연결을 갖는 상기 POL 상호 연결층의 일부와 결합되는 것인 POL 구조. - 파워 오버레이(POL) 구조를 제조하는 방법으로서,
복수의 반도체 디바이스들을 포함하는 웨이퍼를 제공하는 단계와,
상기 복수의 반도체 디바이스들의 각각의 상부면과 유전체층을 결합하는 단계와,
상기 복수의 반도체 디바이스들 중 적어도 하나의 콘택 패드를 노출시키기 위해 상기 유전체층을 통해 복수의 비아들을 형성하는 단계와,
상기 유전체층의 상부면 상에 금속층을 형성하는 단계와,
상기 금속층의 상부 표면과 적어도 하나의 와이어 본드를 결합하는 단계를 포함하며,
상기 금속층은 상기 복수의 비아들을 통해 연장되며 상기 복수의 반도체 디바이스들 중 적어도 하나의 콘택 패드와 전기적으로 결합되는 금속 상호 연결을 갖는 것인 POL 구조 제조 방법. - 제 9 항에 있어서,
상기 복수의 반도체 디바이스들 각각의 상기 상부면과 유전체층을 결합하는 단계는 그들 사이에 접착제층을 배치하는 것을 포함하는 것인 POL 구조 제조 방법. - 제 9 항에 있어서,
상기 웨이퍼를 복수의 POL 구조들로 개별화(singulating)하는 단계를 더 포함하며, 상기 복수의 POL 구조들 각각은 유전체층의 일부와 그 위에 형성되는 금속층의 일부를 갖는 적어도 하나의 반도체 디바이스를 포함하는 것인 POL 구조 제조 방법. - 제 9 항에 있어서,
적어도 하나의 와이어 본드의 표면 영역보다 큰 콘택 패드의 표면 영역을 노출시키도록 비아를 형성하는 단계와,
상기 비아 내에 형성되는 금속 상호 연결과 적어도 하나의 와이어 본드를 결합하는 단계를 더 포함하는 것인 POL 구조 제조 방법. - 제 9 항에 있어서,
금속 상호 연결들이 없는 상기 금속층의 일부와 적어도 하나의 와이어 본드를 결합하는 단계를 더 포함하는 것인 POL 구조 제조 방법. - 제 9 항에 있어서,
상기 복수의 반도체 디바이스들의 상부면과 상기 유전체층을 결합하는 단계에 앞서, 상기 복수의 반도체 디바이스들의 하부면과 제거 가능한 지지 구조를 결합하는 단계를 더 포함하는 것인 POL 구조 제조 방법. - 제 9 항에 있어서,
상기 유전체층과 웨이퍼의 제 1 반도체 디바이스 및 제 2 반도체 디바이스를 결합하는 단계를 더 포함하며, 상기 제 1 반도체 디바이스는 상기 제 2 반도체 디바이스의 두께보다 큰 두께를 갖는 것인 POL 구조 제조 방법. - 제 15 항에 있어서,
상기 제 1 반도체 디바이스와 상기 제 2 반도체 사이에 갭이 형성되도록, 상기 제 1 반도체 디바이스를 상기 제 2 반도체 디바이스와 거리를 두어 위치시키는 단계를 더 포함하는 것인 POL 구조 제조 방법. - 제 15 항에 있어서,
상기 제 1 반도체 디바이스의 상부면이 상기 제 2 반도체 디바이스의 상부면과 실질적으로 동일 평면이 되도록, 상기 지지 구조와 상기 제 2 반도체 디바이스의 하부면 사이에 심(shim)을 배치하는 단계를 더 포함하는 것인 POL 구조 제조 방법. - 제 15 항에 있어서,
상기 제 1 반도체 디바이스와 상기 유전체층의 제 1 부분을 결합하는 단계와,
상기 제 2 반도체 디바이스와 상기 유전체층의 제 2 부분을 결합하는 단계를 더 포함하고,
상기 유전체층의 제 2 부분의 두께는 상기 유전체층의 제 1 부분의 두께보다 큰 것인 POL 구조 제조 방법. - 파워 오버레이(POL) 조립체로서,
제 1 반도체 디바이스 및 제 2 반도체 디바이스와,
상기 제 1 및 제 2 반도체 디바이스들의 상부 콘택 패드와 접착식으로 결합되는 폴리이미드 필름 및 상기 폴리이미드 필름 상에 형성되는 금속 경로를 포함하는 POL 상호 연결 조립체와,
상기 금속 경로와 직접 결합되는 복수의 구리 와이어 본드들을 포함하며,
상기 금속 경로는 상기 폴리이미드 필름을 통해 형성되는 비아들을 통해 연장되며 상기 제 1 및 제 2 반도체 디바이스들의 상부 콘택 패드들과 전기적으로 결합되는 복수의 금속 상호 연결을 포함하며,
상기 복수의 구리 와이어 본드들 중 제 1 와이어 본드는 상기 제 1 반도체 디바이스의 상부 콘택 패드와 전기적으로 결합되고,
상기 복수의 구리 와이어 본드들 중 제 2 와이어 본드는 상기 제 2 반도체 디바이스의 상부 콘택 패드와 전기적으로 결합되는 것인 POL 조립체. - 제 19 항에 있어서,
상기 제 1 POL 구조 중 적어도 하나의 구리 와이어 본드는 상기 제 2 POL 구조 중 적어도 하나의 구리 와이어 본드와 전기적으로 결합되는 것인 POL 조립체. - 제 19 항에 있어서,
상기 제 1 반도체 디바이스의 두께는 상기 제 2 반도체 디바이스의 두께와 다르고,
상기 POL 조립체는 가변 두께를 갖는 폴리이미드 필름과, 상기 제 1 및 제 2 반도체 디바이스들 중 하나의 하부면과 결합되는 심 중 적어도 하나를 포함하는 것인 POL 조립체. - 제 19 항에 있어서,
상기 제 1 와이어 본드는 실질적으로 폴리이미드 필름이 없는 상기 POL 상호 연결 조립체의 일부와 결합되는 것인 POL 조립체. - 제 19 항에 있어서,
상기 제 1 와이어 본드는 상기 POL 상호 연결 조립체의 일부와 결합되며, 상기 폴리이미드 필름은 실질적으로 균일한 두께를 갖는 것인 POL 조립체.
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Also Published As
| Publication number | Publication date |
|---|---|
| JP7254840B2 (ja) | 2023-04-10 |
| JP2021061453A (ja) | 2021-04-15 |
| JP2023078435A (ja) | 2023-06-06 |
| CN111508856B (zh) | 2023-03-21 |
| US9613843B2 (en) | 2017-04-04 |
| TW201626468A (zh) | 2016-07-16 |
| CN116544208A (zh) | 2023-08-04 |
| US10204881B2 (en) | 2019-02-12 |
| CN105514077A (zh) | 2016-04-20 |
| JP7704383B2 (ja) | 2025-07-08 |
| CN105514077B (zh) | 2020-03-31 |
| US20170200692A1 (en) | 2017-07-13 |
| US20160104666A1 (en) | 2016-04-14 |
| TWI713470B (zh) | 2020-12-21 |
| JP2016082230A (ja) | 2016-05-16 |
| EP3010038A3 (en) | 2016-07-20 |
| CN111508856A (zh) | 2020-08-07 |
| EP3010038A2 (en) | 2016-04-20 |
| KR102419302B1 (ko) | 2022-07-12 |
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