Patent · US Active

Semiconductor memory device

US7859889B2 · kind B2 · utility

56Cited by
7References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 5, 2008
Grant dateDec 28, 2010
Priority date
Expiry dateNov 5, 2028

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C2211/4013
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

In a two-transistor gain cell structure, a semiconductor memory device capable of stable reading without malfunction and having small-area memory cells is provided. In a two-transistor gain cell memory having a write transistor and a read transistor, a write word line, a read word line, a write bit line, and a read bit line are separately provided, and voltages to be applied are independently set. Furthermore, a memory cell is connected to the same read word line and write bit line as those of an adjacent memory cell.

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