Method of generating engineering change order (ECO) layout of base cell and computer-readable medium comprising executable instructions for carrying out said method
US10339250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2017 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | May 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of generating an ECO-layout of an ECO base cell includes: generating first and second active area patterns and arranging them on opposite sides of a first axis; generating non-overlapping first, second and third conductive patterns and arranging each of them so as to correspondingly overlap the first and second active area patterns; locating the first conductive pattern between the second and third conductive patterns; generating a first cut-pattern which overlaps corresponding central regions of the second, and third conductive patterns; aligning the first cut-pattern relative to the first axis; generating a fourth conductive pattern; locating the fourth conductive pattern over an area bounded by the first cut-pattern; and expanding the fourth conductive pattern to occupy an area which substantially overlaps a first segment of the first conductive pattern and a first segment of one of the second and third conductive patterns, thereby resulting in the ECO-layout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.