Apparatus for improving antifuse programming yield and reducing antifuse programming time
US5130777A · kind A · utility
50Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1991 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Jan 4, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention includes four approaches to reduce the unintended programming of antifuses while programming selected antifuses and to decrease the programming time. The first approach includes circuitry to maintain the voltage placed on unselected antifuses at a constant level by use of a voltage source. According to the second approach, a resistor is included in series with the voltage source. According to the third approach, a diode is included in series with the voltage source. According to the fourth approach, a MOS implementation of a diode is included in series with the voltage source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.