Routing method and apparatus
US7155697B2 · kind B2 · utility
12Cited by
100References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2002 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jun 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/08582
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for routing of some embodiments defines global routes for nets in an arbitrary region of a circuit layout in which each net has a set of pins. The method uses a first set of lines of measure the length of the global routes, a second set of lines to measure congestion of the global routes, and a third set of lines to partition the arbitrary region into a first set of sub-regions. For each net, the method identifies a global route that connects a group of first-set sub-regions that contain the net's set of pins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.