Semiconductor integrated circuit device

Details Semiconductor integrated circuit device Semiconductor integrated circuit device

2008-07-10

2010-06-15

Parker, Kenneth A (Department: 2815)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257SE29264, C257SE29135

Reexamination Certificate

active

07737509

ABSTRACT:
In an integrated circuit device, there are various optimum gate lengths, thickness of gate oxide films, and threshold voltages according to the characteristics of circuits. In a semiconductor integrated circuit device in which the circuits are integrated on the same substrate, the manufacturing process is complicated in order to set the circuits to the optimum values. As a result, in association with deterioration in the yield and increase in the number of manufacturing days, the manufacturing cost increases. In order to solve the problems, according to the invention, transistors of high and low thresholds are used in a logic circuit, a memory cell uses a transistor of the same high threshold voltage and a low threshold voltage transistor, and an input/output circuit uses a transistor having the same high threshold voltage and the same concentration in a channel, and a thicker gate oxide film.

REFERENCES:
patent: 5212663 (1993-05-01), Leong
patent: 5668035 (1997-09-01), Fang et al.
patent: 6215159 (2001-04-01), Fujita et al.
patent: 6326260 (2001-12-01), Divakaruni et al.
patent: 6356484 (2002-03-01), Dosaka et al.
patent: 6410387 (2002-06-01), Cappelletti et al.
patent: 6583011 (2003-06-01), Xia et al.
patent: 6683353 (2004-01-01), Ishibashi et al.
patent: 6794709 (2004-09-01), Ahn et al.
patent: 6953975 (2005-10-01), Ishibashi et al.
patent: 10-65517 (1998-03-01), None
patent: 10-242292 (1998-03-01), None
patent: 10-242292 (1998-09-01), None
patent: 2000-277627 (2000-10-01), None

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4185273