Method and apparatus for routing
US7003752B2 · kind B2 · utility
14Cited by
113References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2002 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Sep 9, 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 region of a layout with multiple layers. The method defines a routing graph that has several of nodes on plurality of layers, where each node represents a sub-region on a layer. In the graph, there is a set of edges between the nodes on each layer. On one layer, there is at least one set of edges that are neither orthogonal nor parallel to a set of edges on another layer. The method uses this routing graph to identify routes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.