Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2006-01-11
2008-09-30
Pizarro, Marcos D. (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S004000, C257SE21204, C257SE29160
Reexamination Certificate
active
07429777
ABSTRACT:
A semiconductor device includes a semiconductor substrate having a semiconductor layer, a gate electrode, a source region, a drain region, an element separation insulating film layer and a wiring. The gate electrode include a laminated structure having a gate insulating film formed on the semiconductor layer, a metal or a metallic compound formed on the gate insulating film and a polycrystalline silicon layer formed on the metal or metallic compound. The source region and drain region are formed on a surface portion of the semiconductor substrate and sandwich the gate electrode therebetween. The element separation insulating film layer surrounds the semiconductor layer. The wiring is in contact with the metal or metallic compound of the gate electrode.
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Notification of Reason fro Refusal issued by the Japanese Patent Office on Nov. 27, 2007, for Japanese Patent Application No. 2005-051355, and English-language translation thereof.
Koyama Masato
Tsuchiya Yoshinori
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Kabushiki Kaisha Toshiba
Pizarro Marcos D.
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