Semiconductor memory device having the operating voltage of...

Details Semiconductor memory device having the operating voltage of... Semiconductor memory device having the operating voltage of...

2011-04-05

2011-04-05

Hur, J. H. (Department: 2824)

Static information storage and retrieval

Powering

C365S189090, C365S189110, C365S210100, C365S154000

Reexamination Certificate

active

07920438

ABSTRACT:
An SRAM circuit operates at a reduced operation margin, especially at a low operating voltage by increasing or optimizing the operation margin of the SRAM circuit. The threshold voltage of the produced transistor in the SRAM circuit is detected to compare the operating voltage of a memory cell with the operating voltage of a peripheral circuit in order to adjust it to the optimum value, and the substrate bias voltage is further controlled.

REFERENCES:
patent: 4914634 (1990-04-01), Akrout et al.
patent: 5382839 (1995-01-01), Shinohara
patent: 5394077 (1995-02-01), Atsumi
patent: 5493231 (1996-02-01), Nicollian et al.
patent: 6075404 (2000-06-01), Shindoh et al.
patent: 6125075 (2000-09-01), Watanabe et al.
patent: 6201733 (2001-03-01), Hiraki et al.
patent: 6256252 (2001-07-01), Arimoto
patent: 6265932 (2001-07-01), Miyawaki
patent: 6288967 (2001-09-01), Fujisawa et al.
patent: 6493257 (2002-12-01), Coughlin et al.
patent: 6683805 (2004-01-01), Joshi et al.
patent: 6862227 (2005-03-01), Yamaoka et al.
patent: 6954396 (2005-10-01), Yamaoka et al.
patent: 62-289994 (1987-12-01), None
patent: 6-139779 (1994-05-01), None
patent: 2000-268574 (2000-09-01), None
A JPO computer translation of JP 06-139779.

Affiliated with

Also associated with

Rating

Semiconductor memory device having the operating voltage of... 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 memory device having the operating voltage of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory device having the operating voltage of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2692056