A High Voltage Generator Using Charge Pump Circuit for Low Voltage Flash Memories

Kyeng-Won MIN  Shi-Ho KIM  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E82-C    No.5    pp.781-784
Publication Date: 1999/05/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electronic Circuits
Keyword: 
high voltage generator,  charge pump circuit,  flash memory,  

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Summary: 
An on-chip high voltage generator applicable to low voltage flash memory is introduced. Bootstrapped gate transfer switches of two parallel paths suppress the voltage loss due to threshold voltage drop of transfer transistors. The simulated results demonstrate that proposed circuit designed with NMOS transistors having 0.8 volt threshold voltage works like an ideal charge pump circuit near 1.0 volt range with enough current driving capability.