Patent · US Active

Apparatus and method of preventing congestive placement

US8056041B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

MSTAR SEMICONDUCTOR, INC. · TW

Inventors

Chen-Hsing Lo · 東區, TW
Chien-Pang Lu · 東區, TW

Key dates

Filing date	May 25, 2009
Grant date	Nov 8, 2011
Priority date	—
Expiry date	Mar 11, 2030

Classification

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

Abstract

An apparatus of preventing congestive placement is provided. The apparatus comprises a judging module, a pattern generating module, and a placement module. The judging module judges whether a circuit layout comprises a congestive region according to a judging rule. When a judgment result of the judging module is affirmative, the pattern generating module generates a redistribution pattern with a density distribution of blockages. The density distribution gradually decreases outward. The placement module regards the congestive region as the center redistributes the blockages and electronic cells according to the redistribution pattern.

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