Static information storage and retrieval – Floating gate – Particular biasing
Reexamination Certificate
2008-03-26
2010-10-05
Hoang, Huan (Department: 2827)
Static information storage and retrieval
Floating gate
Particular biasing
C365S185110, C365S236000
Reexamination Certificate
active
07808834
ABSTRACT:
A memory system comprises charge storage cells and a refresh control module. The charge storage cells have a charge level decay that is based on lifetime erase operations performed on the charge storage cells. The refresh control module increases charge levels of the charge storage cells to offset the charge level decay without first erasing the charge storage cells. A method of controlling a memory system comprises determining charge level decay of charge storage cells having charge level decay characteristics that are based on lifetime erase operations performed on the charge storage cells; and increasing charge levels of the charge storage cells to offset the charge level decay without first erasing the charge storage cells.
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U.S. Appl. No. 60/884,763, filed Jan. 12, 2004; “Improved Multi-Level Memory”; Pantas Sutardja; 36 pages.
Hoang Huan
Marvell International Ltd.
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