Invention Grant
- Patent Title: Fabrication method of silicon carbide semiconductor apparatus
- Patent Title (中): 碳化硅半导体器件的制造方法
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Application No.: US14390715Application Date: 2013-03-18
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Publication No.: US09281194B2Publication Date: 2016-03-08
- Inventor: Mina Ryo , Shinichi Nakamata , Akimasa Kinoshita , Kenji Fukuda
- Applicant: FUJI ELECTRIC CO., LTD.
- Applicant Address: JP Kawasaki-shi
- Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee Address: JP Kawasaki-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-087726 20120406
- International Application: PCT/JP2013/057741 WO 20130318
- International Announcement: WO2013/150889 WO 20131010
- Main IPC: H01L21/04
- IPC: H01L21/04 ; H01L21/02 ; H01L21/285 ; H01L29/16 ; H01L29/66 ; H01L29/872 ; H01L29/40 ; H01L29/06

Abstract:
An ohmic electrode (6) of a silicon carbide semiconductor apparatus is fabricated by forming an ohmic metal film on a silicon carbide substrate (1) by sputtering a target including a mixture or an alloy having therein nickel, and a metal(s) reducing the magnetic permeability of nickel and producing a carbide, where compositional ratios of the mixture or alloy are adjusted to predetermined compositional ratios, and by executing heat treatment for the ohmic metal film to calcinate the ohmic metal film. Thus, the ohmic electrode (6) that is for the silicon carbide semiconductor apparatus and capable of improving the use efficiency of the target can be manufactured, whose film thickness is even and that does not peel off.
Public/Granted literature
- US20150194313A1 FABRICATION METHOD OF SILICON CARBIDE SEMICONDUCTOR APPARATUS Public/Granted day:2015-07-09
Information query
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