Circuit and method of generating high voltage for...

Static information storage and retrieval – Powering

Reexamination Certificate

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Details

C365S227000, C365S228000, C365S229000

Reexamination Certificate

active

07443758

ABSTRACT:
Provided is a high voltage generator for a flash memory device including a voltage pumping unit configured to generate a high voltage in response to a pumping clock signal, a transistor having a gate coupled to the high voltage and a source coupled to a program voltage, a voltage distributor coupled to the drain of the transistor, the voltage distributor configured to generate a distributor voltage, and a pumping clock controller configured to compare the distributor voltage to a reference voltage and to generate the pumping clock signal when the high voltage is less than a voltage substantially equal to the program voltage plus the threshold voltage of the transistor.

REFERENCES:
patent: 6181629 (2001-01-01), Ogura
patent: 6707716 (2004-03-01), Natori
patent: 2005/0036395 (2005-02-01), Maejima et al.
patent: 2002-142448 (2002-05-01), None
patent: 2003-123495 (2003-04-01), None
patent: 10-0223480 (1999-07-01), None
English language abstract of Korean Publication No. 10-0223480.
English language abstract of Korean Publication No. 2002-142448.
English language abstract of Japanese Publication No. 2003-123495.

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