Method for legalizing mixed-cell height standard cells of IC
US10275559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Jun 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/398
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for legalizing mixed-cell height standard cells of an IC is provided. A target standard cell is obtained in a window of a global placement. The target standard cell has a first area overlapping a first standard cell located in a first row of the window, and a second area overlapping a second standard cell located in a second row of the window. The target standard cell and the first standard cell are moved until the target standard cell does not overlap the first standard cell in the first row of the window. The target standard cell and the first standard cell are clustered as a first cluster when the target standard cell does not overlap the first standard cell. The first cluster is moved away from the second standard cell in the second row until the second standard cell does not overlap the first cluster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.