Invention Application
- Patent Title: METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE
- Patent Title (中): 制造半导体器件的方法
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Application No.: US13812505Application Date: 2012-10-12
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Publication No.: US20140120719A1Publication Date: 2014-05-01
- Inventor: Changliang Qin , Huaxiang Yin
- Applicant: Changliang Qin , Huaxiang Yin
- Priority: CN201210283268.1 20120809
- International Application: PCT/CN12/01380 WO 20121012
- Main IPC: H01L21/3213
- IPC: H01L21/3213

Abstract:
The present invention relates to a method of manufacturing a semiconductor device for improving the spacer mask. In the present invention, a barrier layer and a sacrificial layer are formed, and the portions of the upper part of the spacer whose left and right sides differ greatly are ground away to leave the portion similar to a rectangle at the bottom of the spacer, which is used as the mask to perform the subsequent spacer masking technology. Thus the undesirable influences to the subsequent etching caused by the asymmetric profile of the spacer can be reduced as much as possible.
Information query
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