Invention Grant
- Patent Title: Semiconductor device and method of producing same
- Patent Title (中): 半导体装置及其制造方法
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Application No.: US13266420Application Date: 2009-12-25
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Publication No.: US08614446B2Publication Date: 2013-12-24
- Inventor: Tomihito Miyazaki , Makoto Kiyama , Taku Horii
- Applicant: Tomihito Miyazaki , Makoto Kiyama , Taku Horii
- Applicant Address: JP Osaka-shi
- Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee Address: JP Osaka-shi
- Agency: Venable LLP
- Agent Michael A. Sartori; Tamatane J. Aga
- Priority: JP2009-113836 20090508
- International Application: PCT/JP2009/071611 WO 20091225
- International Announcement: WO2010/128571 WO 20101111
- Main IPC: H01L29/15
- IPC: H01L29/15

Abstract:
A semiconductor device includes a semiconductor layer (1) containing GaN and an electrode. The electrode includes an electrode main body (6), a connection-use electrode (8) containing Al and formed at a position farther from the semiconductor layer (1) than the electrode main body (6), and a barrier layer (7) formed between the electrode main body (6) and the connection-use electrode (8), the barrier layer (7) containing at least one selected from the group consisting of W, TiW, WN, TiN, Ta, and TaN. A surface roughness RMS of the barrier layer (7) is 3.0 nm or less.
Public/Granted literature
- US20120037918A1 SEMICONDUCTOR DEVICE AND METHOD OF PRODUCING SAME Public/Granted day:2012-02-16
Information query
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