High voltage generator and related flash memory device

Details High voltage generator and related flash memory device High voltage generator and related flash memory device

2007-07-06

2009-02-10

Nguyen, Tan T. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Including level shift or pull-up circuit

C365S185230, C365S226000, C327S536000

Reexamination Certificate

active

07489566

ABSTRACT:
A high voltage generator includes a charge pump generating a high voltage in response to a pumping clock signal, a charge/discharge circuit responsive to the pumping clock signal and charging the high voltage to generate an output voltage, a comparator for comparing the output voltage with a reference voltage to generate a comparison result, and a clock modification circuit adjusting a pumping slope of the charge pump in relation to the comparison result, wherein the clock modification circuit reduces the pumping slope when the high voltage reaches a target voltage level.

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