Invention Application
- Patent Title: METHOD FOR FABRICATING AN APERTURE
- Patent Title (中): 制造孔的方法
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Application No.: US14054839Application Date: 2013-10-16
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Publication No.: US20140038399A1Publication Date: 2014-02-06
- Inventor: Feng-Yi Chang , Yi-Po Lin , Jiunn-Hsiung Liao , Shang-Yuan Tsai , Chih-Wen Feng , Shui-Yen Lu , Ching-Pin Hsu
- Applicant: UNITED MICROELECTRONICS CORP.
- Applicant Address: TW Hsin-Chu City
- Assignee: UNITED MICROELECTRONICS CORP.
- Current Assignee: UNITED MICROELECTRONICS CORP.
- Current Assignee Address: TW Hsin-Chu City
- Main IPC: H01L21/308
- IPC: H01L21/308

Abstract:
A method for fabricating an aperture is disclosed. The method includes the steps of: forming a hard mask containing carbon on a surface of a semiconductor substrate; and using a non-oxygen element containing gas to perform a first etching process for forming a first aperture in the hard mask. Before forming the hard mask, a gate which includes a contact etch stop layer and a dielectric layer is formed on the semiconductor substrate.
Information query
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