Patent · US Expired

Semiconductor device and method of producing the same

US6891262B2 · kind B2 · utility

28Cited by
5References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 17, 2002
Grant dateMay 10, 2005
Priority date
Expiry dateApr 28, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D64/021
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A semiconductor device enabling word lines to be arranged at close intervals, comprising a plurality of memory transistors arranged in an array and a plurality of word lines serving also as gate electrodes of memory transistors in a same row, extending in a row direction, and repeating in a column direction, where insulating films are formed between the plurality of word lines to insulate and isolate the word lines from each other and where a dimension of separation of word lines is defined by the thickness of the insulating films.

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