发明申请
- 专利标题： Semiconductor device
- 专利标题（中）： 半导体器件
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申请号： US11392648申请日： 2006-03-30
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公开(公告)号： US20060220146A1公开(公告)日： 2006-10-05
- 发明人: Yasuhiro Takeda , Koji Yamashita
- 申请人： Yasuhiro Takeda , Koji Yamashita
- 专利权人： SANYO ELECTRIC CO., LTD.
- 当前专利权人： SANYO ELECTRIC CO., LTD.
- 优先权： JP2005-100954 20050331; JP2005-240906 20050823
- 主分类号： H01L29/76
- IPC分类号： H01L29/76
摘要：
A semiconductor device for effectively suppressing noise propagation between circuits. The semiconductor device includes a semiconductor substrate having a main surface. Two circuit regions are defined in the semiconductor substrate. A circuit isolation region is located between the two circuit regions. A dummy diffusion layer is formed in the circuit isolation region. The dummy diffusion layer has an upper surface that is lower than the main surface of the semiconductor substrate.
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