Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Reexamination Certificate
2005-06-21
2005-06-21
Huynh, Andy (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
C257S021000, C257S053000, C257S080000, C257S113000, C257S184000, C257S451000, C257S464000
Reexamination Certificate
active
06909161
ABSTRACT:
A photodiode has an optical absorption layer composed of a depleted first semiconductor optical absorption layer with a layer width WDand a p-type neutral second semiconductor optical absorption layer with a layer width WA. The ratio between WAand WDis set such that the total carrier transit time τtotbecomes 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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Hirota Yukihiro
Ishibashi Tadao
Muramoto Yoshifumi
Dickstein , Shapiro, Morin & Oshinsky, LLP
Huynh Andy
NTT Electronics Corporation
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