Layouts with routes with different spacings in different directions on the same layer, and method and apparatus for generating such layouts
US7117468B1 · kind B1 · utility
60Cited by
104References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2002 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Jul 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments of the invention provide a method of routing nets in a multi-layer integrated-circuit (“IC”) layout. For each particular net in a set of nets, the method specifies different spacing constraints for routing the particular net in different directions on the same layer. It then defines a particular route for each particular net in the set of nets, where the spacing between at least one particular route and an item adjacent to the route in the layout is different in the different directions on the same layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.