Systems for alternate row-based reading and writing for non-volatile memory

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7443726
APP PUB NO 20070153577A1
SERIAL NO

11321346

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A set of storage elements is programmed beginning with a word line WLn adjacent a select gate line for the set. After programming the first word line, the next word line WLn+1 adjacent to the first word line is skipped and the next word line WLn+2 adjacent to WLn+1 is programmed. WLn+1 is then programmed. Programming continues according to the sequence {WLn+4, WLn+3, WLn+6, WLn+5, . . . } until all but the last word line for the set have been programmed. The last word line is then programmed. By programming in this manner, some of the word lines of the set (WLn+1, WLn+3, etc.) have no subsequently programmed neighboring word lines. The memory cells of these word lines will not experience any floating gate to floating gate coupling threshold voltage shift impact due to subsequently programmed neighboring memory cells. The word lines having no subsequently programmed neighbors are read without using offsets or compensations based on neighboring memory cells. The other word lines are read using compensations based on data states within both subsequently programmed neighboring word lines.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SANDISK TECHNOLOGIES LLC

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guterman, Daniel C Fremont, CA 166 13770

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation