Semiconductor device

Details Semiconductor device Semiconductor device

2007-08-07

2007-08-07

Mai, Son L. (Department: 2827)

Static information storage and retrieval

Powering

Conservation of power

C365S189090, C365S226000, C327S530000, C327S544000

Reexamination Certificate

active

11363060

ABSTRACT:
When a leakage current of a circuit block under a non-use state is reduced by means of a power switch, frequent ON/OFF operations of the switch within a short time invite an increase of consumed power, on the contrary. Because a pre-heating time is necessary from turn-on of the switch till the circuit block becomes usable, control of the switch during an operation deteriorates a processing time of a semiconductor device. The switch is ON/OFF-controlled with a task duration time of a CPU core for controlling logic circuits and memory cores as a unit. After the switch is turned off, the switch is again turned on before termination of the task in consideration of the pre-heating time.

REFERENCES:
patent: 5396635 (1995-03-01), Fung
patent: 5532524 (1996-07-01), Townsley et al.
patent: 5541885 (1996-07-01), Takashima
patent: 5724297 (1998-03-01), Noda et al.
patent: 5925132 (1999-07-01), Kadokura
patent: 5959927 (1999-09-01), Yamagata et al.
patent: 5970018 (1999-10-01), Iwata et al.
patent: 6055206 (2000-04-01), Tanizaki et al.
patent: 6107700 (2000-08-01), Ishikawa et al.
patent: 6107836 (2000-08-01), Kawahara et al.
patent: 6212641 (2001-04-01), Frank et al.
patent: 6333895 (2001-12-01), Hamamoto et al.
patent: 6574150 (2003-06-01), Suyama et al.
patent: 6635934 (2003-10-01), Hidaka
patent: 6657911 (2003-12-01), Yamaoka et al.
patent: 6970019 (2005-11-01), Horiguchi et al.
patent: 10-208473 (1998-08-01), None
H. Kawaguchi et al, “A CMOS Scheme for 0.5V Supply Voltage with Pico-Ampere Standby Current”, ISSCC98, Session 12, 1998, pp. 192-193.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3880982