- 专利标题: Method for dicing a semiconductor substrate into a plurality of dies
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申请号: US17038737申请日: 2020-09-30
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公开(公告)号: US11476162B2公开(公告)日: 2022-10-18
- 发明人: Frank Holsteyns , Eric Beyne , Christophe Lorant , Simon Braun
- 申请人: IMEC VZW
- 申请人地址: BE Leuven
- 专利权人: IMEC VZW
- 当前专利权人: IMEC VZW
- 当前专利权人地址: BE Leuven
- 代理机构: McDonnell Boehnen Hulbert & Berghoff LLP
- 优先权: EP19200554 20190930
- 主分类号: H01L21/78
- IPC分类号: H01L21/78 ; H01L21/56 ; H01L23/31 ; H01L23/48
摘要:
A method is provided for dicing a semiconductor substrate into a plurality of dies, the semiconductor substrate having a front side including a plurality of device areas, a back side, and a plurality of through substrate vias. The method includes defining, from the front side, at least one trench to be formed between adjacent device areas, forming the at least one trench, from the front side of the semiconductor substrate, arranging a protective layer on the front side of the semiconductor substrate, thinning the semiconductor substrate from the back side to reduce the thickness of the semiconductor substrate, processing the back side of the semiconductor substrate to form at least one contact, the contact contacting at least one through substrate via, etching through the minor portion of the thickness of the semiconductor substrate underneath the at least one trench, and dicing the semiconductor substrate into the plurality of dies.
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