Automatically routing nets with variable spacing
US8095903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique will automatically route interconnect of an integrated circuit and adjust spacing between tracks or interconnect in order to improve performance or reduce electromigration effects. By increasing spacing between certain tracks or moving tracks, performance can improve because a track will be more noise immunity from nearby tracks on the same layer or on different layers. The automatic router will adjust spacing between tracks depending on one or more factors. These factors may include current associated with a track, width of a track, capacitance, inductance, and electromigration. In a specific implementation, the technique uses a shape-based approach where a grid is not used. The technique may further vary the width of the tracks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.