Integrated circuit logic extraction using cloning and expansion for engineering change order
US10318689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for modifying an original design of an integrated circuit in accordance with an engineering change order (ECO) design includes cloning complex logic gate having multiple logic functions with cloned logic gates in parallel with the corresponding complex logic gates in the original design and the ECO design and expanding each cloned logic gate to corresponding base functionality logic gates to provide an expanded original design and an expanded ECO design using the processor. The method also includes modifying at least a portion of the expanded original design to have a circuit topology that is the same as the expanded ECO design in order to have an input from the expanded original design to an output structure be the same as the input from the expanded ECO design to the output structure in response to an expanded original design input and an expanded ECO design input being non-equivalent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.