Patent · US Expired

Semiconductor memory device

US7015540B2 · kind B2 · utility

15Cited by
1References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 15, 2003
Grant dateMar 21, 2006
Priority date
Expiry dateOct 31, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C2216/06
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

To realize a semiconductor memory device with reduced cell-to-cell variation in writing characteristics a semiconductor memory has a source region and a drain region, which are formed parallel to each other, and an assist electrode which is between and parallel to the source and drain regions without overlapping, so that at the time of writing, the assist electrode is used as an assist electrode for hot electrons to be injected at the source side and at the time of reading, an inversion layer formed under the assist electrode is used as the source region or the drain region.

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