Patent · US Expired

Semiconductor memory device

US6504755B1 · kind B1 · utility

59Cited by
4References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 8, 2001
Grant dateJan 7, 2003
Priority date
Expiry dateNov 8, 2021

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D64/037
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A semiconductor memory device is constituted by forming two types of insulation films on the channel of an MOS transistor on which a vertical type another MOS transistor using the control gate of the MOS transistor as a substrate is stacked. Thus, a non-volatile semiconductor memory device small in size, having high reliability, high density, excellent fatigue and a random access function can be provided.

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