Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2008-04-14
2011-10-04
Menz, Laura M (Department: 2813)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S336000, C257S337000
Reexamination Certificate
active
08030705
ABSTRACT:
Provided are a semiconductor device and a method of fabricating the semiconductor device. The semiconductor device can provide a trench MOS transistor having an up-drain structure. The semiconductor device can include a first conductive type well in a semiconductor substrate, a second conductive type well on the first conductive type well, trenches formed by removing portions of the second conductive type well and the first conductive type well; gates provided in the trenches with a gate dielectric being between each gate and the walls of the trench, a first conductive type source region and a second conductive type body region on the second conductive type well, the first conductive type source region surrounding a lateral surface of the gate, and a common drain between the gates, the common drain being connected to the first conductive type well.
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Dongbu Hitek Co., Ltd.
Menz Laura M
Saliwanchik Lloyd & Eisenschenk
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