Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2006-06-20
2006-06-20
Trinh, Michael (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S120000
Reexamination Certificate
active
07064384
ABSTRACT:
A semiconductor device comprises: a first main electrode; a second main electrode; a semiconductor base region of a first conductivity type; a gate electrode provided in a trench through an insulating film, the trench being formed to penetrate the semiconductor base region; and a first semiconductor region of a first conductivity type and a second semiconductor region of a second conductivity type provided under the semiconductor base region. A flow of a current between the first and second main electrodes when a voltage of a predetermined direction is applied between these electrodes is controllable in accordance with a voltage applied to the gate electrode. A depleted region extends from a junction between the first and the second semiconductor regions reaching the trench.
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Hara Takuma
Kitagawa Mitsuhiko
Kabushiki Kaisha Toshiba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Rose Kiesha
Trinh Michael
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