Semiconductor device including a three or more stage...

Details Semiconductor device including a three or more stage... Semiconductor device including a three or more stage...

2007-08-14

2007-08-14

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

Reexamination Certificate

active

11052052

ABSTRACT:
A semiconductor device includes a three or more-stage semiconductor charge pump. The capacitance of a pumping capacitor that increases and decreases the potential of a final-stage node on the output side is larger than that of a pumping capacitor that increases and decreases the potential of another-stage node.

REFERENCES:
patent: 6356469 (2002-03-01), Roohparvar et al.
patent: 6608782 (2003-08-01), Hirano
patent: 6774707 (2004-08-01), Smith et al.
patent: 6888399 (2005-05-01), Nakagawa et al.
John F. Dickson, “On-Chip High-Voltage Generation in MNOS Integrated Circuits Using an Improved Voltage Multiplier Technique”, IEEE Journal Of Solid-State Circuits, vol. SC-11, No. 3., Jun. 1976, pp. 374-378.
Toru Tanzawa, et al., “A Dynamic Analysis of the Dickson Charge Pump Circuit”, IEEE Journal Of Solid-State Circuits, vol. 32, No. 8, Aug. 1997, pp. 1231-1240.
U.S. Appl. No. 11/360,670, filed Feb. 24, 2006, Ito.

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