Nonvolatile semiconductor memory with a programming...

Static information storage and retrieval – Floating gate – Particular connection

Reexamination Certificate

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C365S189120

Reexamination Certificate

active

06891754

ABSTRACT:
The invention provides a method of programming in a nonvolatile semiconductor memory device, having a plurality of memory cell strings connected to a plurality of bitlines and constructed of a plurality of memory cell transistors whose gates are coupled to a plurality of wordlines, and a plurality of registers corresponding to the bitlines. The method involves applying a first voltage to a first one of the bitlines and applying a second voltage to a second one of the bitline, the first bitline being adjacent to the second bitline, the first and second voltages being supplied from the registers; electrically isolating the first and second bitlines from their corresponding registers; charging the first bitline up to a third voltage higher than the first voltage and lower than the second voltage; and applying a fourth voltage to a wordline after cutting off current paths into the first and second bitlines.

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patent: 6285587 (2001-09-01), Kwon
patent: 6288936 (2001-09-01), Kawamura
patent: 6353555 (2002-03-01), Jeong

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