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公开(公告)号:US08415707B2
公开(公告)日:2013-04-09
申请号:US12834977
申请日:2010-07-13
申请人: Shinji Tokuyama , Masaki Ueno , Masahiro Adachi , Takashi Kyono , Takamichi Sumitomo , Koji Katayama , Yoshihiro Saito
发明人: Shinji Tokuyama , Masaki Ueno , Masahiro Adachi , Takashi Kyono , Takamichi Sumitomo , Koji Katayama , Yoshihiro Saito
IPC分类号: H01L33/00
CPC分类号: H01L21/28575 , H01L29/045 , H01L29/2003 , H01L29/452 , H01L33/32 , H01L33/40
摘要: A Group III nitride semiconductor device has a semiconductor region, a metal electrode, and a transition layer. The semiconductor region has a surface comprised of a Group III nitride crystal. The semiconductor region is doped with a p-type dopant. The surface is one of a semipolar surface and a nonpolar surface. The metal electrode is provided on the surface. The transition layer is formed between the Group III nitride crystal of the semiconductor region and the metal electrode. The transition layer is made by interdiffusion of a metal of the metal electrode and a Group III nitride of the semiconductor region.
摘要翻译: III族氮化物半导体器件具有半导体区域,金属电极和过渡层。 半导体区域具有由III族氮化物晶体组成的表面。 半导体区域掺杂有p型掺杂剂。 表面是半极性表面和非极性表面之一。 金属电极设置在表面上。 在半导体区域的III族氮化物晶体和金属电极之间形成过渡层。 过渡层是通过金属电极的金属和半导体区域的III族氮化物的相互扩散而制成的。