Integrated circuit including power transistor cells and a connecting line
US8502274B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2012 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/516
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Power transistor cells are formed in a cell array of an integrated circuit. Contact vias may electrically connect a metal structure above the cell array and the power transistor cells. A connecting line electrically connects a first element arranged in the cell array and a second element arranged in a peripheral region. A portion of the connecting line is arranged between the metal structure and the cell array and runs between a first axis and a second axis which are arranged parallel and at a distance to each other. The distance is greater than a width of the connecting line portion. The connecting line portion is tangent to both the first axis and the second axis. Shear-induced material transport along the connecting line is reduced by shortening critical portions or by exploiting grain boundary effects. The reliability of an insulator structure covering the connecting line is increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.