Invention Grant
- Patent Title: Silicon carbide semiconductor element and fabrication method thereof
- Patent Title (中): 碳化硅半导体元件及其制造方法
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Application No.: US14387487Application Date: 2013-03-18
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Publication No.: US09252218B2Publication Date: 2016-02-02
- Inventor: Takashi Tsuji , 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: JP2012-081906 20120330
- International Application: PCT/JP2013/057740 WO 20130318
- International Announcement: WO2013/146446 WO 20131003
- Main IPC: H01L31/0312
- IPC: H01L31/0312 ; H01L29/16 ; H01L29/40 ; H01L29/43 ; H01L29/47 ; H01L21/04 ; H01L21/283 ; H01L29/45 ; H01L29/78 ; H01L29/872

Abstract:
An Ni2Si layer and a TiC layer formed by sintering after deposition of a thin layer including Ni and a thin layer including Ti on a silicon carbide substrate have a structure in which the TiC layer is precipitated on a surface of the Ni2Si layer. A multilayer thin film including a Ti layer as a first thin film and an Ni layer as a second thin film is formed on the TiC layer surface in the structure. A TiC-derived C composition ratio is set to 15% or more at an interface between the TiC layer and the Ti layer of the multilayer thin film. As a result, a silicon carbide semiconductor element can be provided without occurrence of peeling after wafer dicing and subsequent picking up by a dicing tape.
Public/Granted literature
- US20150048383A1 SILICON CARBIDE SEMICONDUCTOR ELEMENT AND FABRICATION METHOD THEREOF Public/Granted day:2015-02-19
Information query
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