Implementing designs of guard ring and fill structures from simple unit cells
US9202000B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Sep 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/39
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for creating and placing custom guard rings create a guard ring from a plurality of unit cells reflecting the devices that are enclosed in the guard ring. Using a unit cell identified by a design tool user as the basic unit of the guard ring, with a few additional setup parameters, a complete, content-aware guard ring is created. The guard ring will consist of a collection of the identified unit cells placed around the circuit devices that are to be protected. The created guard ring will function as a single circuit component. Edits to the dimensions and/or parameters of the unit cell will affect the placement of the unit cell in the protected area and will therefore require creation of a new guard ring consistent with the changed parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.