Hierarchical color decomposition of library cells with boundary-aware color selection
US12112114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2021 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Mar 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2111/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the invention include systems and methods configured to provide hierarchical circuit designs that makes use of a color decomposition of library cells having boundary-aware color selection. A non-limiting example computer-implemented method includes placing a plurality of shapes within a hierarchical level of a chip design. The plurality of shapes can include a top boundary shape, a bottom boundary shape, one or more center boundary shapes, and one or more internal shapes. A hierarchical hand-off region is constructed by pinning the top boundary shape to a first mask, pinning the bottom boundary shape to a second mask, and pinning the one or more center boundary shapes to a same mask. The same mask is selected from one of the first mask and the second mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.