Routing techniques to assure electrical integrity in datapath blocks
US5987241A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jan 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Connection lines are routed within an integrated circuit. A first set of the connection lines are pre-routed. The first set of connection lines carry signals which have a higher likelihood of being influenced by crosstalk. The first set of connection lines are routed to tracks where minimal capacitive coupling will result. For example, this may be in a track immediately adjacent to a power line or a ground line. Alternatively, or in addition, this may be in a track between two empty tracks. After the first set of connection lines have been routed, a second set of connection lines are routed. The second set of connection lines carry signals which have a lower likelihood of being influenced by crosstalk. The second connection lines are routed to tracks which are not utilized by the first set of connection lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.