Invention Grant
- Patent Title: Manufacturing method of semiconductor device and semiconductor device
- Patent Title (中): 半导体器件和半导体器件的制造方法
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Application No.: US11905918Application Date: 2007-10-05
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Publication No.: US07867890B2Publication Date: 2011-01-11
- Inventor: Masaru Seto
- Applicant: Masaru Seto
- Applicant Address: JP Tokyo
- Assignee: Oki Semiconductor Co., Ltd.
- Current Assignee: Oki Semiconductor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rabin & Berdo, PC
- Priority: JP2006-292782 20061027
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
The present invention provides a method of manufacturing a semiconductor device, which comprises steps of forming a plurality of wirings on a first insulating film formed on a semiconductor substrate so as to adjoin one another, forming a second insulating film on the first insulating film by a plasma CVD method and covering the wirings with the second insulating film in such a manner that air gaps are formed between the respective adjacent wirings, forming a third insulating film on the second insulating film by a high density plasma CVD method, and forming a fourth insulating film high in moisture resistance on the third insulating film.
Public/Granted literature
- US20080099876A1 Manufacturing method of semiconductor device and semiconductor device Public/Granted day:2008-05-01
Information query
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