Standard cell circuits employing high aspect ratio voltage rails for reduced resistance
US10090244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2017 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Jun 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/981
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Standard cell circuits employing high aspect ratio voltage rails for reduced resistance are disclosed. In one aspect, a standard cell circuit is provided that employs a first high aspect ratio voltage rail configured to receive a first supply voltage. A second high aspect ratio voltage rail is employed that is disposed substantially parallel to the first high aspect ratio voltage rail. A voltage differential between the first and second high aspect ratio voltage rails is used to power a circuit device in the standard cell circuit. The first and second high aspect ratio voltage rails each have a height-to-width ratio greater than 1.0. The height of each respective first and second high aspect ratio voltage rail is greater than each respective width. Employing the first and second high aspect ratio voltage rails allows each to have a cross-sectional area that limits the resistance and corresponding IR drop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.