发明名称 |
Photodiode |
摘要 |
A photodiode has an optical absorption layer composed of a depleted first semiconductor optical absorption layer with a layer width W<SUB>D </SUB>and a p-type neutral second semiconductor optical absorption layer with a layer width W<SUB>A</SUB>. The ratio between W<SUB>A </SUB>and W<SUB>D </SUB>is set such that the total carrier transit time tau<SUB>tot </SUB>becomes minimum in the optical absorption layer. The photodiode can further include a depleted semiconductor optical transmission layer with a bandgap greater than that of the first semiconductor optical absorption layer, between the first semiconductor optical absorption layer and an n-type semiconductor electrode layer.
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申请公布号 |
US6909161(B2) |
申请公布日期 |
2005.06.21 |
申请号 |
US20040497490 |
申请日期 |
2004.06.03 |
申请人 |
NTT ELECTRONICS CORPORATION |
发明人 |
ISHIBASHI TADAO;HIROTA YUKIHIRO;MURAMOTO YOSHIFUMI |
分类号 |
H01L31/10;H01L31/101;H01L31/105;(IPC1-7):H01L31/075 |
主分类号 |
H01L31/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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