Capacitor structure and automated design flow for incorporating same
US6963122B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2003 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Sep 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A capacitive structure is described that comprises a first node and a second node. The first node comprises a first pair of vertically aligned strips that are electrically connected with one or more vias and a second pair of vertically aligned strips that are electrically connected with one or more vias. The higher strips of both of the pairs are at a same metal level and the lower strips of both of the pairs are at a same lower metal level. The second node comprises, at the metal level, a first metal structure having a pair of windows. A first of the windows surround and are isolated from a first of the higher strips. A second of the windows surround and are isolated from a second of the higher strips. The second node also comprises, at the lower metal level, a second metal structure having a pair of windows. A first of the windows surround and are isolated from a first of the lower strips. A second of the windows surround and are isolated from a second of the lower strips. The first and second metal structures are electrically connected with one or more vias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.