发明名称 炭化珪素半導体装置及びその製造方法
摘要 <p>Provided is a silicon carbide semiconductor device and a manufacturing method for the same wherein the ohmic electrode is not destroyed during wire bonding employing ultrasonic oscillation. The silicon carbide semiconductor device is provided with a silicon carbide substrate (1), an n-type silicon carbide layer (2) formed on the silicon carbide substrate (1), a p-type impurity region (3) formed proximate to the surface of the n-type silicon carbide layer (2), a p-type ohmic electrode (4) formed on top of the p-type impurity region (3), and a Schottky electrode (5) formed on top of the n-type silicon carbide layer (2) so as to cover the p-type ohmic electrode (4). The p-type ohmic electrode (4) is formed in a recess (3a) provided in the surface of the p-type impurity region (3). The upper surface of the p-type ohmic electrode is lower than a surface (2a) of the n-type silicon carbide layer.</p>
申请公布号 JP5775711(B2) 申请公布日期 2015.09.09
申请号 JP20110051598 申请日期 2011.03.09
申请人 发明人
分类号 H01L29/47;H01L21/329;H01L29/872 主分类号 H01L29/47
代理机构 代理人
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