Invention Grant
- Patent Title: Production method for semiconductor device
- Patent Title (中): 半导体器件的制造方法
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Application No.: US12704004Application Date: 2010-02-11
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Publication No.: US08163605B2Publication Date: 2012-04-24
- Inventor: Fujio Masuoka , Tomohiko Kudo , Shintaro Arai , Hiroki Nakamura
- Applicant: Fujio Masuoka , Tomohiko Kudo , Shintaro Arai , Hiroki Nakamura
- Applicant Address: SG Peninsula Plaza
- Assignee: Unisantis Electronics Singapore PTE Ltd.
- Current Assignee: Unisantis Electronics Singapore PTE Ltd.
- Current Assignee Address: SG Peninsula Plaza
- Agency: Brinks Hofer Gilson & Lion
- Priority: JPPCT/JP2008/052567 20080215
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/84 ; H01L21/336 ; H01L21/8234 ; H01L21/8238

Abstract:
It is intended to provide an SGT production method capable of obtaining a structure for reducing a resistance of a source, drain and gate, a desired gate length, desired source and drain configurations and a desired diameter of a pillar-shaped semiconductor to be obtained. The method comprises the steps of: forming a pillar-shaped first-conductive-type semiconductor layer; forming a second-conductive-type semiconductor layer underneath the pillar-shaped first-conductive-type semiconductor layer; forming a dummy gate dielectric film and a dummy gate electrode around the pillar-shaped first-conductive-type semiconductor layer; forming a first dielectric film on an upper region of a sidewall of the pillar-shaped first-conductive-type semiconductor layer and in contact with a top of the gate electrode, through a gate dielectric film; forming a first dielectric film on a sidewall of the gate electrode; forming a second-conductive-type semiconductor layer in an upper portion of the pillar-shaped first-conductive-type semiconductor layer; forming a second-conductive-type semiconductor layer in an upper portion of the pillar-shaped first-conductive-type semiconductor layer; forming a metal-semiconductor compound on each of the second-conductive-type semiconductor layers formed in the upper portion of and underneath the pillar-shaped first-conductive-type semiconductor layer; removing the dummy gate dielectric film and the dummy gate electrode and forming a high-k gate dielectric film and a metal gate electrode.
Public/Granted literature
- US20100210079A1 PRODUCTION METHOD FOR SEMICONDUCTOR DEVICE Public/Granted day:2010-08-19
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