Patent · US Expired

Semiconductor integrated circuit device

US4959704A · kind A · utility

15Cited by
0References
32Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 25, 1988
Grant dateSep 25, 1990
Priority date
Expiry dateMay 25, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S257/903
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

In a gate array with a RAM, by-pass signal lines which interconnect a logic section and I/O unit circuit of the gate array are disposed so as to extend above the RAM. In order to minimize mutual interference, signal lines formed from a layer which is adjacent to the by-pass signal lines are disposed so as to intersect the latter at right angles. In addition, interconnection pitches in different layers which extend parallel with each other are set so that noises are canceled in differential sense circuits.

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