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A 4-Mbit NAND-EEPROM with tight programmed Vt distribution

  • Tomoharu Tanaka*
  • , Masaki Momodomi
  • , Yoshihisa Iwata
  • , Yoshiyuki Tanaka
  • , Hideko Oodaira
  • , Yasuo Itoh
  • , Shirota Riichiro
  • , Kazunori Ohuchi
  • , Fujio Masuoka
  • *Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

14 Scopus citations

Abstract

The authors describe a 4-Mb NAND-EEPROM with tight Vt (threshold voltage) distribution which is controlled by a novel program verify technique. A tight Vt distribution width of 0.6 V for the entire 4-Mb cell array is achieved, and read margin is improved. A unique twin P-well structure has made it possible to realize low-power 5-V-only erase/program operation easily compared with the previous design.

Original languageEnglish
Pages105-106
Number of pages2
DOIs
StatePublished - Jun 1990
Event1990 Symposium on VLSI Circuits - Honolulu, HI, USA
Duration: 7 Jun 19909 Jun 1990

Conference

Conference1990 Symposium on VLSI Circuits
CityHonolulu, HI, USA
Period7/06/909/06/90

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