Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – On insulating substrate or layer
Reexamination Certificate
2005-08-15
2010-02-16
Gebremariam, Samuel A (Department: 2811)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
On insulating substrate or layer
C438S300000, C257SE21394, C257SE21615, C257SE21458, C257SE29049, C257SE29067, C257SE29299, C257SE29256
Reexamination Certificate
active
07662679
ABSTRACT:
A method of manufacturing a semiconductor device includes forming a mask layer on a first-conductivity-type semiconductor substrate, etching the semiconductor substrate using the mask layer as a mask, thereby forming a projecting semiconductor layer, forming a first insulating layer on the semiconductor substrate to cover a lower portion of the projecting semiconductor layer, doping a first-conductivity-type impurity into the first insulating layer, thereby forming a high-impurity-concentration layer in the lower portion of the projecting semiconductor layer, forming gate insulating films on side surfaces of the projecting semiconductor layer which upwardly extend from an upper surface of the first insulating layer, and forming a gate electrode on the gate insulating films and on the first insulating film.
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Ito Sanae
Izumida Takashi
Kanemura Takahisa
Foley & Lardner LLP
Gebremariam Samuel A
Kabushiki Kaisha Toshiba
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