Invention Grant
- Patent Title: Schottky device and method of manufacturing the same
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Application No.: US15705242Application Date: 2017-09-14
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Publication No.: US10586876B2Publication Date: 2020-03-10
- Inventor: Wing Chong Tony Chau , Wing Kit Cheung , Wai Tien Chan
- Applicant: Alpha Power Solutions Limited
- Applicant Address: CN
- Assignee: Alpha Power Solutions Limited
- Current Assignee: Alpha Power Solutions Limited
- Current Assignee Address: CN
- Agency: Patent Law Group: Atkins and Associates, P.C.
- Agent Robert D. Atkins
- Priority: CN201710809729 20170908
- Main IPC: H01L29/872
- IPC: H01L29/872 ; H01L29/16 ; H01L29/66 ; H01L29/47 ; H01L29/36 ; H01L29/06 ; H01L29/267

Abstract:
A Schottky device includes a silicon carbide (SiC) substrate of a first conductivity type, a drift layer of the first conductivity type, a trench, a barrier layer of a second conductivity type, an electrically conductive material that at least partially fills the trench and contacts the barrier layer, a first electrode, and a second electrode. The drift layer is formed of SiC and is situated onto the SiC substrate. The trench extends from the top surface of the drift layer towards the SiC substrate. The barrier layer contacts the drifting layer and covers a sidewall and a bottom wall of the trench. The first electrode forms a Schottky junction with the drift layer and forms a low resistivity contact with the barrier layer and the electrically conductive material. The second electrode forms an ohmic contact with the SiC substrate.
Public/Granted literature
- US20190081184A1 Schottky Device and Method of Manufacturing the Same Public/Granted day:2019-03-14
Information query
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