High-yield methods for programming antifuses
US5272388A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Jun 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for programming an antifuse of a selected technology type comprises the steps of (1) applying a preselected number of programming pulses to the antifuse at a voltage less than the maximum voltage at which antifuses of that selected technology type are known to program, (2) testing to see if the antifuse has been programmed, (3) increasing the programming voltage by a preselected increment and applying the preselected number of programming pulses to the antifuse if the antifuse has not been programmed, and (4) repeating steps (2) and (3) until the antifuse has been programmed. The antifuse may be identified as defective if it does not program after a selected number of attempts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.