Method and apparatus for routing
US7171635B2 · kind B2 · utility
21Cited by
115References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2002 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Aug 17, 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 identifying global routes for nets in a region of a layout with multiple layers, where each net has a set of routable elements. The method partitions each layer of the region into several sub-regions. For each net, the method then identifies a route that connects the sub-regions that contain the net's set of routable elements. Some of the identified routes have at least one non-Manhattan edge and traverse sub-regions on multiple layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.