Patent · US Expired

Semiconductor memory device having different distances between gate electrode layers

US6469356B2 · kind B2 · utility

12Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 8, 2001
Grant dateOct 22, 2002
Priority date
Expiry dateJun 8, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S257/903

Abstract

The invention provides SRAMs that can reduce memory cells in size and correct light proximity effect. Gate electrode layers in a first layer, drain-drain connection layers in a second layer, and drain-gate connection layers in a third layer define conduction layers of a flip-flop. A source contact layer of load transistors are located adjacent end sections of the gate electrode layers, and both of the end sections bend outwardly to avoid contact with the source contact layer.

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