发明申请
- 专利标题: HYBRID BONDING INTERFACE FOR 3-DIMENSIONAL CHIP INTEGRATION
- 专利标题(中): 用于三维芯片整合的混合接合界面
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申请号: US13418716申请日: 2012-03-13
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公开(公告)号: US20120171818A1公开(公告)日: 2012-07-05
- 发明人: Karl W. Barth , Ricardo A. Donaton , Spyridon Galis , Kevin S. Petrarca , Shahab Siddiqui
- 申请人: Karl W. Barth , Ricardo A. Donaton , Spyridon Galis , Kevin S. Petrarca , Shahab Siddiqui
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: H01L21/50
- IPC分类号: H01L21/50
摘要:
Each of a first substrate and a second substrate includes a surface having a diffusion resistant dielectric material such as silicon nitride. Recessed regions are formed in the diffusion resistant dielectric material and filled with a bondable dielectric material. The patterns of the metal pads and bondable dielectric material portions in the first and second substrates can have a mirror symmetry. The first and second substrates are brought into physical contact and bonded employing contacts between metal pads and contacts between the bondable dielectric material portions. Through-substrate-via (TSV) structures are formed through bonded dielectric material portions. The interface between each pair of bonded dielectric material portions located around a TSV structure is encapsulated by two diffusion resistant dielectric material layers so that diffusion of metal at a bonding interface is contained within each pair of bonded dielectric material portions.
公开/授权文献
- US08349729B2 Hybrid bonding interface for 3-dimensional chip integration 公开/授权日:2013-01-08
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