Method of controlling program operation of flash memory...

Details Method of controlling program operation of flash memory... Method of controlling program operation of flash memory...

2007-05-22

2007-05-22

Mai, Son L. (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185030, C365S185220, C365S185330

Reexamination Certificate

active

11306472

ABSTRACT:
A method of controlling a program operation of a flash memory device includes performing a first program process of programming lower bit program data into MLCs of a selected page, a second program process of programming upper bit program data into the MLCs of the selected page, a first verify process of verifying whether all MLCs of the selected page have been programmed, transferring first lower sensing data to the upper bit registers so that the upper bit program data is stored in upper bit registers of all page buffers in order for MLCs to be consecutively programmed though the program operation has been completed during the second program process, and repeatedly performing the second program process, the first verify process and transferring the first lower sensing data until the MLCs of the selected page are completely programmed.

REFERENCES:
patent: 6836431 (2004-12-01), Chang
patent: 7016230 (2006-03-01), Hosono
patent: 2006/0104112 (2006-05-01), Hosono et al.
patent: 2006/0215453 (2006-09-01), Seong

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