发明授权
- 专利标题: Graded junction high voltage semiconductor device
- 专利标题(中): 分级结高压半导体器件
-
申请号: US11490407申请日: 2006-07-19
-
公开(公告)号: US08159001B2公开(公告)日: 2012-04-17
- 发明人: Bin Wang
- 申请人: Bin Wang
- 申请人地址: US CA Mountain View
- 专利权人: Synopsys, Inc.
- 当前专利权人: Synopsys, Inc.
- 当前专利权人地址: US CA Mountain View
- 代理机构: Fenwick & West LLP
- 主分类号: H01L29/72
- IPC分类号: H01L29/72
摘要:
A graded junction space decreasing an implant concentration gradient between n-well and p-well regions of a semiconductor device is provided for enhancing breakdown voltage in high voltage applications. Split or unified FOX regions may be provided overlapping with the graded junction space. By using a p-well blocking layer to separate the p-well(s) and the n-well, breakdown voltage characteristic is improved without the cost of an additional mask or process change.
公开/授权文献
- US20070093028A1 Graded junction high voltage semiconductor device 公开/授权日:2007-04-26
信息查询
IPC分类: