发明授权
US4960725A Semiconductor device and manufacturing process for providing device
regions on the semiconductor device and isolation regions to isolate
the device regions from each other.
失效
用于在半导体器件和隔离区域上提供器件区域以将器件区域彼此隔离的半导体器件和制造工艺。
- 专利标题: Semiconductor device and manufacturing process for providing device regions on the semiconductor device and isolation regions to isolate the device regions from each other.
- 专利标题(中): 用于在半导体器件和隔离区域上提供器件区域以将器件区域彼此隔离的半导体器件和制造工艺。
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申请号: US222314申请日: 1988-07-19
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公开(公告)号: US4960725A公开(公告)日: 1990-10-02
- 发明人: Tatsuo Noguchi
- 申请人: Tatsuo Noguchi
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX60-211557 19850925
- 主分类号: H01L21/8234
- IPC分类号: H01L21/8234 ; H01L21/768 ; H01L23/522 ; H01L23/64 ; H01L27/02 ; H01L27/088 ; H01L29/06
摘要:
There is provided a semiconductor device which comprises device regions and isolation regions to isolate the device regions from each other on a semiconductor substrate, wherein field insulators are formed in the isolation regions and conduction layers for wiring are formed above the field insulators. An additional impurity buried layer having an opposite conductivity to the semiconductor substrate is formed under the field insulators. Therefore the first capacitance element is composed of the conductive layer, the impurity buried layer, and the field insulator therebetween. The second capacitance element is composed of the impurity buried layer, the semiconductor substrate, and a PN junction layer therebetween. Thus the first capacitance element and the second capacitance element are connected in series.
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