Method for improved data retention in a nonvolatile writeable me

Details Method for improved data retention in a nonvolatile writeable me Method for improved data retention in a nonvolatile writeable me

1996-12-20

1998-11-10

Swann, Tod R.

Static information storage and retrieval

Floating gate

Particular biasing

36518518, 36518911, 3652335, G11C 1600, G11C 1400

Patent

active

058354131

ABSTRACT:
A method and apparatus improves data retention in a nonvolatile writeable memory. A first group of memory cells is identified as having a stored charge over a first threshold. A subset of the first group of memory cells having a stored charge less than a second threshold is determined. The subset of the memory cells is programmed until each of the memory cells of the subset has a stored charge over the second threshold.

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