Invention Grant
- Patent Title: Single-chamber sequential curing of semiconductor wafers
- Patent Title (中): 单腔连续固化半导体晶圆
-
Application No.: US13370579Application Date: 2012-02-10
-
Publication No.: US08951348B1Publication Date: 2015-02-10
- Inventor: Krishnan Shrinivasan , Feng Wang , George Kamian , Steve Gentile , Mark Yam
- Applicant: Krishnan Shrinivasan , Feng Wang , George Kamian , Steve Gentile , Mark Yam
- Applicant Address: US CA San Jose
- Assignee: Novellus Systems, Inc.
- Current Assignee: Novellus Systems, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Weaver Austin Villeneuve & Sampson
- Main IPC: C23C16/50
- IPC: C23C16/50 ; C23C16/00 ; C23F1/00 ; H01L21/306

Abstract:
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.
Information query
IPC分类: