Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2008-09-09
2008-09-09
Baumeister, Bradley W. (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257SE29258
Reexamination Certificate
active
11265208
ABSTRACT:
The present application provides a semiconductor device including a first-conductivity type semiconductor substrate, a pillar structure portion formed on the first-conductivity type semiconductor substrate and formed of five semiconductor pillar layers arranged in one direction parallel to a main surface of the first-conductivity type semiconductor substrate, and isolation insulating portions formed on the first-conductivity type semiconductor substrate and sandwiching the pillar structure portion between the isolation insulating portions, wherein the pillar structure portion is formed of a first first-conductivity type pillar layer, a second first-conductivity type pillar layer and a third first-conductivity type pillar layer which sandwich the first first-conductivity type pillar layer, a first second-conductivity type pillar layer provided between the first first-conductivity type pillar layer and the second first-conductivity type pillar layer, and a second second-conductivity type pillar layer provided between the first first-conductivity type pillar layer and the third first-conductivity type pillar layer.
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Aida Satoshi
Izumisawa Masaru
Kobayashi Hitoshi
Kouzuki Shigeo
Okumura Hideki
Baumeister Bradley W.
Kabushiki Kaisha Toshiba
Movva Amar
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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