| 发明名称 |
Photo semiconductor integrated circuit device and optical recording reproducing apparatus |
| 摘要 |
A photo semiconductor integrated circuit device has a photodiode portion and amplifier portion, each portion having a buried layer. The impurity concentration and/or depth of the buried layer for the photodiode portion is lower than that of the buried layer for the amplifier portion. As a result, the frequency band width is widened.
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| 申请公布号 |
US6573578(B2) |
申请公布日期 |
2003.06.03 |
| 申请号 |
US20010922157 |
申请日期 |
2001.08.06 |
| 申请人 |
HITACHI, LTD. |
发明人 |
KIMURA SHIGEHARU;MAIO KENJI;DOI TAKESHI;TAMAKI YOICHI;SHIMANO TAKESHI |
| 分类号 |
H01L27/14;H01L27/144;H01L31/02;H01L31/10;(IPC1-7):H01L27/14;H01L31/00;H01L31/06 |
主分类号 |
H01L27/14 |
| 代理机构 |
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