Routing standard cell-based integrated circuits
US9165102B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This disclosure describes a multi-height routing cell and utilization of the multi-height routing in an integrated circuit to reduce routing congestion in a standard cell design floorplan. The multi-height routing cell includes a bypass connection, or “tunnel,” that routes a signal through a non-routing layer and under an impeding power rail. The multi-height routing cell includes bypass connectors on both sides of the bypass connection that provide connection points for which to connect standard cells on opposite sides of the impeding power rail. As such, the multi-height routing cell provides a route underneath the impeding power rail and, in turn, reducing routing congestion in the standard cell design floorplan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.