发明申请
- 专利标题: SEMICONDUCTOR DEVICE AND PREPARATION METHOD THEREFOR
- 专利标题(中): 半导体器件及其制备方法
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申请号: US15023049申请日: 2014-12-03
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公开(公告)号: US20160233216A1公开(公告)日: 2016-08-11
- 发明人: Guangsheng ZHANG , Sen ZHANG
- 申请人: CSMC TECHNOLOGIES FAB1 CO., LTD.
- 优先权: CN201310661381.3 20131206
- 国际申请: PCT/CN2014/092964 WO 20141203
- 主分类号: H01L27/088
- IPC分类号: H01L27/088 ; H01L21/8236
摘要:
A semiconductor device includes a substrate (110); a buried layer (120) formed on the substrate (110), a diffusion layer (130) formed on the buried layer (120), wherein the diffusion layer (130) includes a first diffusion region (132) and a second diffusion region (134), and an impurity type of the second diffusion region (134) is opposite to an impurity type of the first diffusion region (132); the diffusion layer (134) further comprises a plurality of third diffusion regions (136) formed in the second diffusion region, wherein an impurity type of the third diffusion region (136) is opposite to the impurity type of the second diffusion region (134); and a gate (144) formed on the diffusion layer (130).
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