Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – Avalanche diode
Reexamination Certificate
2011-02-08
2011-02-08
Pham, Thanh V (Department: 2894)
Active solid-state devices (e.g., transistors, solid-state diode
Heterojunction device
Avalanche diode
C257SE29335, C257S194000, C257S080000, C438S380000
Reexamination Certificate
active
07884395
ABSTRACT:
A semiconductor apparatus includes, a first silicon layer of a first conductivity type; a second silicon layer provided on the first silicon layer and having a higher resistance than the first silicon layer, a third silicon layer of a second conductivity type provided on the second silicon layer, a first nitride semiconductor layer provided on the third silicon layer, a second nitride semiconductor layer provided on the first nitride semiconductor layer and having a larger bandgap than the first nitride semiconductor layer, a first main electrode being in contact with a surface of the second nitride semiconductor layer and connected to the third silicon layer, a second main electrode being in contact with the surface of the second nitride semiconductor layer and connected to the first silicon layer, and a control electrode provided between the first main electrode and the second main electrode on the second nitride semiconductor layer.
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Kabushiki Kaisha Toshiba
Laurenzi, III Mark A
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Pham Thanh V
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