发明申请
- 专利标题: METHOD OF FABRICATING ELECTRIC FIELD SENSOR HAVING ELECTRIC FIELD SHIELD
- 专利标题(中): 制造电场感应电场传感器的方法
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申请号: US11872065申请日: 2007-10-15
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公开(公告)号: US20080138924A1公开(公告)日: 2008-06-12
- 发明人: Chul-min PARK , Hyoung-soo Ko , Seung-bum Hong
- 申请人: Chul-min PARK , Hyoung-soo Ko , Seung-bum Hong
- 申请人地址: KR Suwon-si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-si
- 优先权: KR10-2006-0126407 20061212
- 主分类号: H01L21/44
- IPC分类号: H01L21/44
摘要:
A method of manufacturing an electric field sensor having an electric field shield. The method includes providing a substrate doped with a first impurity; forming a resistive tip having a resistance region doped with a low concentration of a second impurity at an apex of a protruding portion of the substrate, and first and second semiconductor electrode regions doped with a high concentration of the second impurity on both slopes of the protruding portion with the resistive region therebetween, wherein the second impurity has a polarity opposite to that of the first impurity; forming a dielectric layer on the resistive tip; forming a mask having a high aspect ratio on the dielectric layer; depositing a metal layer on the dielectric layer; and exposing the dielectric layer formed on the resistance region through the metal layer by removing the mask.
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