Patent · US Expired

Design hierarchy-based placement

US6249902A · kind A · utility

379Cited by
21References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 9, 1998
Grant dateJun 19, 2001
Priority date
Expiry dateJan 9, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F30/392
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

In computer-aided electronic design automation software, a placement system biases clustering of cells according to their hierarchical design while optimizing placement for controlling die size and total wire length. The placement system also provides for slack distribution, row improvement and randomization during partitioning. Floor plans based on trial placement and placement guiding blocks are also described.

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