Testing memories using algorithm selection
US7533309B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Nov 26, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/3202
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of performing a built-in-self-test (BIST) of at least one memory element of a circuit is disclosed. In a specific example, a determination is made during running of a BIST whether one or more algorithms are to be run. If any algorithm is not designated for running, the particular algorithm is skipped and the test moves to other algorithms to be run. A BIST controller is configured to perform a group of test algorithms. Certain algorithms from the group may be checked to see if they are to be run or bypassed. A delay or skip state is desirably interposed following the inclusion of a particular algorithm and prior to the start of a next algorithm. A determination is made during the delay or skip state whether the next algorithm is to be run. The user may also have the option of running all of the algorithms if desired for performance of a particular BIST.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.