Circuit design watermarking
US11977614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2021 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Jan 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for watermarking a circuit design include defining a watermarked cell library that includes cells, each of which defines a design structure that corresponds to a manufacturable physical structure, at least one of which being a watermarked call that includes a watermark. The watermark is encoded using a design structure that extends beyond a respective cell boundary. A first circuit design file is generated for a device to be manufactured. The first circuit design file including at least one watermarked cell. The first circuit design file is sent to a manufacturer for fabrication of a corresponding device that includes a watermark structure that encodes an identifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.