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公开(公告)号:US20110049666A1
公开(公告)日:2011-03-03
申请号:US12900294
申请日:2010-10-07
IPC分类号: H01L29/08
CPC分类号: H01L29/0619 , H01L29/0661 , H01L29/1602 , H01L29/1608 , H01L29/2003 , H01L29/66068 , H01L29/66909 , H01L29/66924 , H01L29/7827 , H01L29/8083 , H01L2924/0002 , H01L2924/00
摘要: A guard ring structure for use in a semiconductor device. The guard ring structure includes a semiconductor layer stack having a first layer and a second layer on top of the first layer, gates structures formed in the first layer; and guard rings formed in the first layer. The second layer has a dopant concentration that is higher than the dopant concentration of the first layer. The gates and the guard rings are formed simultaneously using a single mask.
摘要翻译: 一种用于半导体器件的保护环结构。 保护环结构包括在第一层顶部具有第一层和第二层的半导体层堆叠,形成在第一层中的栅极结构; 并在第一层形成保护环。 第二层具有高于第一层的掺杂剂浓度的掺杂剂浓度。 门和保护环是使用单个掩模同时形成的。