Method of modifying cell and global connection routing method
US10552568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Apr 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of modifying a cell includes identifying a maximum overlapped pin group. The method further includes determining a number of pins in the maximum overlapped pin group. The method further includes determining a span region of the maximum overlapped pin group. The method further includes comparing the number of pins and the span region to determine a global tolerance of the cell. The method further includes increasing a length of at least one pin of the maximum overlapped pin group in response to the global tolerance failing to satisfy a predetermined threshold. The method further includes fabricating a mask based on the increased length of the at least one pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.