发明授权
- 专利标题: Single-chamber sequential curing of semiconductor wafers
- 专利标题(中): 单腔连续固化半导体晶圆
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申请号: US13370579申请日: 2012-02-10
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公开(公告)号: US08951348B1公开(公告)日: 2015-02-10
- 发明人: Krishnan Shrinivasan , Feng Wang , George Kamian , Steve Gentile , Mark Yam
- 申请人: Krishnan Shrinivasan , Feng Wang , George Kamian , Steve Gentile , Mark Yam
- 申请人地址: US CA San Jose
- 专利权人: Novellus Systems, Inc.
- 当前专利权人: Novellus Systems, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Weaver Austin Villeneuve & Sampson
- 主分类号: C23C16/50
- IPC分类号: C23C16/50 ; C23C16/00 ; C23F1/00 ; H01L21/306
摘要:
The present invention relates to curing of semiconductor wafers. More particularly, the invention relates to cure chambers containing multiple cure stations, each featuring one or more UV light sources. The wafers are cured by sequential exposure to the light sources in each station. In some embodiments, the wafers remain stationary with respect to the light source during exposure. In other embodiments, there is relative movement between the light source and the wafer during exposure. The invention also provides chambers that may be used to independently modulate the cross-linking, density and increase in stress of a cured material by providing independent control of the wafer temperature and UV intensity.
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