Invention Grant
- Patent Title: Method for manufacturing semiconductor device
- Patent Title (中): 制造半导体器件的方法
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Application No.: US12497315Application Date: 2009-07-02
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Publication No.: US08173515B2Publication Date: 2012-05-08
- Inventor: Toshiya Nakamori , Hiroshi Kujirai
- Applicant: Toshiya Nakamori , Hiroshi Kujirai
- Applicant Address: JP Tokyo
- Assignee: Elpida Memory, Inc.
- Current Assignee: Elpida Memory, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Morrison & Foerster LLP
- Priority: JP2008-188489 20080722
- Main IPC: H01L21/762
- IPC: H01L21/762

Abstract:
An oxide film and a liner film are formed on an inner wall of a trench in a semiconductor substrate. After filling an SOD film in the trench, a heat treatment is carried out. Part of the liner film in contact with the SOD film is removed to expose part of the SOD film. A heat treatment is carried out on the SOD film. An isolating region is formed by filling an insulating film in the trench.
Public/Granted literature
- US20100022069A1 METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE Public/Granted day:2010-01-28
Information query
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