Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Amorphous semiconductor material
Reexamination Certificate
2005-04-27
2008-01-15
Tran, Thien F (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Non-single crystal, or recrystallized, semiconductor...
Amorphous semiconductor material
C257S066000, C257S072000, C257S347000
Reexamination Certificate
active
07319236
ABSTRACT:
It is an object to provide technique for forming a further minute gate electrode in a semiconductor integrated circuit. According to the present invention, a conductive film is etched while a resist mask is made to recede so as to make a cross section of a gate wiring have a trapezoidal shape having a width capable of being electrically connected to an upper layer wiring and make a cross section of a gate electrode, which diverges from a gate wiring, have a shape comprising only three interior angles, typically a triangular shape; and thus, a gate width of 1 μm or less is realized. According to the invention, increase of ON current is realized and a circuit operating at high speed (typically, a CMOS circuit or an NMOS circuit) can be obtained.
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Costellia Jeffrey L.
Nixon & Peabody LLP
Semiconductor Energy Laboratory Co,. Ltd.
Tran Thien F
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