Patent · US Expired

Flash E.sup.2 PROM array with mingle polysilicon layer memory cell

US5359573A · kind A · utility

5Cited by
5References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 19, 1992
Grant dateOct 25, 1994
Priority date
Expiry dateJun 19, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C16/0433
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

In embodiments of flash E.sup.2 PROM arrays, an access transistor is included in each cell thereof, in series with the floating transistor of the cell, the access transistor being used to avoid the problem of drain disturbance in cells other than the cell being programmed. The connection of the control gates in certain of these arrays is such that gate disturbance on the floating gate transistors in those cells not being programmed is reduced or eliminated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.