Invention Grant
- Patent Title: Method of hard mask CD control by Ar sputtering
- Patent Title (中): 通过Ar溅射进行硬掩模CD控制的方法
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Application No.: US13193195Application Date: 2011-07-28
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Publication No.: US08802571B2Publication Date: 2014-08-12
- Inventor: Wonchul Lee , Qian Fu
- Applicant: Wonchul Lee , Qian Fu
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Beyer Law Group LLP
- Main IPC: H01L21/311
- IPC: H01L21/311

Abstract:
A method for etching features into a silicon based etch layer through a patterned hard mask in a plasma processing chamber is provided. A silicon sputtering is provided to sputter silicon from the silicon based etch layer onto sidewalls of the patterned hard mask to form sidewalls on the patterned hard mask. The etch layer is etched through the patterned hard mask.
Public/Granted literature
- US20130029491A1 METHOD OF HARD MASK CD CONTROL BY AR SPUTTERING Public/Granted day:2013-01-31
Information query
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