KR20210009426A - 패드로서의 tsv - Google Patents
패드로서의 tsv Download PDFInfo
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- KR20210009426A KR20210009426A KR1020217000800A KR20217000800A KR20210009426A KR 20210009426 A KR20210009426 A KR 20210009426A KR 1020217000800 A KR1020217000800 A KR 1020217000800A KR 20217000800 A KR20217000800 A KR 20217000800A KR 20210009426 A KR20210009426 A KR 20210009426A
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- electrically conductive
- bonding
- tsv
- conductive
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Abstract
Description
도 1b는 도 1a의 예시적인 기판의 상면도를 나타낸다.
도 2는 결합 패드와 TSV를 갖는 2개의 예시적인 결합된 기판의 단면 및 결과적으로 생긴 예시적인 층간 박리를 나타낸다.
도 3a는 일 실시 형태에 따른, TSV의 적어도 한 단부가 결합 표면이 되는 예시적인 기판의 단면을 나타낸다.
도 3b는 일 실시 형태에 따른, 도 3a의 예시적인 기판의 상면도를 나타낸다.
도 4는 일 실시 형태에 따른, TSV의 적어도 한 단부가 결합 표면이 되는 2개의 예시적인 결합된 기판의 단면을 나타낸다.
도 5는 일 실시 형태에 따른, TSV의 적어도 한 단부가 결합 표면이 되는 2개의 예시적인 기판의 단면을 나타낸다.
도 6은 일 실시 형태에 따른, TSV의 적어도 한 단부가 결합 표면이 되는 2개의 예시적인 기판의 단면을 나타낸 것으로, 결합 표면은 비평탄한 표면을 갖는다.
도 7 ∼ 13은 일 실시 형태에 따른, TSV의 적어도 한 단부가 결합 표면이 되는 예시적인 기판의 단면을 나타낸 것으로, 기판의 예시적인 후방측 공정을 도시한다.
도 14는 다양한 실시 형태에 따른, 다이의 열 관리에 사용되는 예시적인 TSV의 도를 나타낸다.
도 15는 일 실시 형태에 따른, 결합된 기판의 층간 박리를 줄이거나 없애기 위해 마이크로 전자 어셈블리를 형성하는 예시적인 공정을 도시하는 문자 흐름도이다.
Claims (19)
- 마이크로 전자 어셈블리를 형성하는 방법으로서,
제1 결합 표면을 갖는 제1 기판을 통해 전기 전도성 비아(via)를 제공하는 단계 - 전기 전도성 비아는 상기 제1 결합 표면으로부터 적어도 부분적으로 상기 제1 기판을 통해 연장됨 -;
상기 제1 결합 표면의 반대편에 있는 표면에서 상기 전기 전도성 비아를 노출시키는 단계; 및
제2 결합 표면을 형성하는 단계를 포함하고,
상기 전기 전도성 비아는 상기 제2 결합 표면에 대해 리세싱되어 있는, 마이크로 전자 어셈블리를 형성하는 방법. - 제1항에 있어서,
결합 표면의 형성은, 비전도성 부분을 형성하고 또한 그 비전도성 표면을 연마하여 상기 전기 전도성 비아의 노출된 단부를 리세싱하는 것을 포함하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제2항에 있어서,
상기 리세스는 결합 공정 동안에 상기 전도성 비아의 팽창을 보상하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제1항에 있어서,
제2 기판을 제공하는 단계; 및
접착제의 개재 없이 상기 제1 기판의 제2 결합 표면을 제2 기판에 직접 결합시키는 단계를 더 포함하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제4항에 있어서,
상기 제2 기판은 적어도 부분적으로 그 기판을 통해 연장되어 있는 전기 전도성 비아를 더 포함하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제5항에 있어서,
상기 제2 기판은 상기 전기 전도성 비아 위에 있는 패드를 더 포함하고, 이 패드는 상기 제1 기판의 전기 전도성 비아와 접촉하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제5항에 있어서,
상기 제1 기판의 전기 전도성 비아는 상기 제2 기판의 전기 전도성 비아와 실질적으로 정렬되는, 마이크로 전자 어셈블리를 형성하는 방법. - 제1항에 있어서,
상기 전도성 비아와 제2 결합 표면 사이에 경사 틈이 있도록 상기 전도성 비아의 노출된 단부를 형성하는 단계를 더 포함하는, 마이크로 전자 어셈블리를 형성하는 방법. - 마이크로 전자 어셈블리를 형성하는 방법으로서,
전방측과 후방측을 갖는 제1 기판을 제공하는 단계 - 상기 후방측은 결합 표면을 가지며, 결합 표면은 비전도성 결합층 및 상기 비전도성 결합층으로부터 리세싱되어 있는 노출된 전기 전도성 비아를 포함함 -;
전방측과 후방측을 갖는 제2 기판을 제공하는 단계 - 상기 전방측은 비전도성 결합층과 노출된 패드를 포함함 -;
상기 제1 및 제2 기판의 비전도성 결합층들을 서로 접촉시켜 제2 기판의 전방측을 제1 기판의 후방측에 연결하는 단계; 및
열처리 단계를 통해 상기 노출된 패드를 상기 노출된 전기 전도성 비아에 연결하는 단계를 포함하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제9항에 있어서,
상기 패드는 연결 전에 상기 제2 기판의 비전도성 결합층 아래로 리세싱되어, 패드와 전기 전도성 비아의 열팽창을 수용하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제9항에 있어서,
상기 제1 기판의 비전도성 결합층은 확산 배리어 및 이 확산 배리어 상의 절연체를 포함하고, 절연체는 결합 표면으로서 작용하는, 마이크로 전자 어셈블리를 형성하는 방법. - 마이크로 전자 어셈블리를 형성하는 방법으로서,
비전도성 결합층 및 노출된 전도성 비아를 포함하는 후방측 표면을 갖는 제1 기판을 제공하는 단계;
비전도성 결합층 및 노출된 전도성 비아를 포함하는 후방측 표면을 갖는 제2 기판을 제공하는 단계;
상기 제1 및 제2 기판의 비전도성 결합층들을 서로 접촉시켜 제2 기판을 제1 기판에 연결하는 단계; 및
상기 제1 및 제2 기판의 노출된 전도성 비아들을 서로 연결하는 단계를 포함하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제12항에 있어서,
상기 전도성 비아를 통해 열을 상기 제1 기판으로부터 제2 기판에 전달하는 단계를 더 포함하는, 마이크로 전자 어셈블리를 형성하는 방법. - 제12항에 있어서,
상기 비아는 상기 제1 또는 제2 기판에 있는 전기 장치에 또는 그로부터 전기 신호를 전달하도록 구성되어 있는, 마이크로 전자 어셈블리를 형성하는 방법. - 마이크로 전자 어셈블리로서,
비전도성 결합층 및 전기 전도성 비아를 포함하는 결합 표면을 갖는 제1 기판 - 상기 전기 전도성 비아는 제1 기판으로부터 전기적으로 절연됨 -; 및
비전도성 결합층 및 전기 전도성 피쳐(feature)를 포함하는 제2 기판을 포함하고,
상기 전기 전도성 피쳐는 상기 제2 기판 안으로 연장되어 있고 또한 그로부터 전기적으로 절연되어 있으며,
상기 제2 기판은 상기 전기 전도성 비아가 상기 전기 전도성 피쳐와 접촉하여 신호 경로를 형성하도록 상기 제1 기판에 직접 결합되는, 마이크로 전자 어셈블리. - 제15항에 있어서,
상기 전기 전도성 피쳐는, 상기 제2 기판 내부에 있는 적어도 하나의 추가 전기 전도성 피쳐에 연결되는 전기 전도성 패드인, 마이크로 전자 어셈블리. - 제15항에 있어서,
상기 전기 전도성 피쳐는 적어도 부분적으로 상기 제2 기판을 통해 연장되어 있는 전기 전도성 비아인, 마이크로 전자 어셈블리. - 제15항에 있어서,
상기 전기 전도성 피쳐는 전기 전도성 패드 및 전기 전도성 비아를 포함하고, 전기 전도성 패드는 전기 전도성 비아로부터 오프셋되어 있는, 마이크로 전자 어셈블리. - 제15항에 있어서,
상기 제1 기판의 후방측에서 하나 이상의 유전성 응력 완화 층을 더 포함하는, 마이크로 전자 어셈블리.
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US10886250B2 (en) | 2015-07-10 | 2021-01-05 | Invensas Corporation | Structures and methods for low temperature bonding using nanoparticles |
US10204893B2 (en) | 2016-05-19 | 2019-02-12 | Invensas Bonding Technologies, Inc. | Stacked dies and methods for forming bonded structures |
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US10580735B2 (en) | 2016-10-07 | 2020-03-03 | Xcelsis Corporation | Stacked IC structure with system level wiring on multiple sides of the IC die |
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CN112470270B (zh) | 2022-06-03 |
WO2019241417A1 (en) | 2019-12-19 |
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KR102552215B1 (ko) | 2023-07-05 |
US11749645B2 (en) | 2023-09-05 |
TW202002111A (zh) | 2020-01-01 |
KR20210008918A (ko) | 2021-01-25 |
US20240088101A1 (en) | 2024-03-14 |
US11728313B2 (en) | 2023-08-15 |
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