| 发明名称 |
Semiconductor integrated circuit device having analog circuit and digital circuit formed on one chip |
| 摘要 |
First and second well regions of a second conductivity type are formed in a semiconductor substrate of a first conductivity type. An analog circuit is formed in the first well region. A digital circuit is formed in the second well region.
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| 申请公布号 |
US5336915(A) |
申请公布日期 |
1994.08.09 |
| 申请号 |
US19910814802 |
申请日期 |
1991.12.31 |
| 申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
FUJITA, YASUHIKO;MIYATA, HARUYUKI |
| 分类号 |
H01L21/822;H01L21/8238;H01L27/02;H01L27/04;H01L27/088;H01L27/092;(IPC1-7):H01L29/784 |
主分类号 |
H01L21/822 |
| 代理机构 |
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代理人 |
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