Enhanced capacitor shape
US6369432B1 · kind B1 · utility
5Cited by
16References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1998 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Feb 23, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10B12/0335
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A capacitor having a pear-shaped cross section is provided. In one embodiment, the pear-shaped capacitor is a stacked container capacitor used in a dynamic random access memory circuit with a bit-line-over- capacitor construction. Each capacitor is at a minimum bit line distance from all adjacent bit line contacts, and also at a minimum capacitor distance from all adjacent capacitors along a substantial portion of its perimeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.