发明授权
- 专利标题: Protection layer for preventing UBM layer from chemical attack and oxidation
- 专利标题(中): 防止UBM层受化学侵蚀和氧化的保护层
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申请号: US12786818申请日: 2010-05-25
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公开(公告)号: US08569897B2公开(公告)日: 2013-10-29
- 发明人: Chung-Shi Liu , Chien Ling Hwang , Ming-Che Ho
- 申请人: Chung-Shi Liu , Chien Ling Hwang , Ming-Che Ho
- 申请人地址: TW
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TW
- 代理机构: Lowe Hauptman & Ham, LLP
- 主分类号: H01L23/48
- IPC分类号: H01L23/48 ; H01L23/52 ; H01L29/40
摘要:
A protection layer formed of a CuGeyNz layer, a CuSixNz layer, a CuSixGeyNz layer or combinations thereof is formed on an under-bump metallurgy (UBM) layer for preventing the UBM layer from chemical attack and oxidation during subsequent processes.
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