Charge pump

Details Charge pump Charge pump

1997-10-16

1999-08-17

Cunningham, Terry D.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327589, 327543, 327537, G05F 110

Patent

active

059399350

ABSTRACT:
Selected transistors in a charge pump circuit have their associated well regions tied to a capacitor electrode. As a result, the body effect in these devices is reduced, and, consequently, the threshold voltage is reduced as well. With a lower threshold voltage, these transistors allow the charge pump to quickly generate a voltage higher than the positive power supply voltage or a negative substrate bias voltage. In addition, the metal-insulator-semiconductor (MIS) capacitors in the charge pump preferably have their source/drain regions tied to an associated well region, thereby shorting the source/drain/well region junction. Thus, parasitic capacitances associated with these MIS capacitors is significantly reduced, further increasing the speed of the charge pump circuit.

REFERENCES:
patent: 4468798 (1984-08-01), Riebeek
patent: 5023465 (1991-06-01), Douglas et al.
patent: 5126590 (1992-06-01), Chern
patent: 5266842 (1993-11-01), Park
patent: 5343088 (1994-08-01), Jeon
patent: 5394320 (1995-02-01), Blodgett
patent: 5394365 (1995-02-01), Tsukikawa
patent: 5493249 (1996-02-01), Manning
patent: 5544102 (1996-08-01), Tobita et al.
patent: 5673232 (1997-09-01), Furutani
patent: 5677645 (1997-10-01), Merritt
Adel S. Sedra, "Microelectronic circuits" 7 Pages, 1982.

Affiliated with

Also associated with

Rating

Charge pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-318388