Method and apparatus for measuring performance of hierarchical test equipment
US8301412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Sep 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/31907
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes defining a hierarchy associated with a test system including a plurality of test units for testing integrated circuit devices. At least some of the test units have a plurality of sockets. The hierarchy includes a first level including a first plurality of entities each associated with one of the sockets and at least a second level including a second plurality of entities each associated with a grouping of the sockets. State data associated with operational states of the sockets is received. A set of state metrics is generated for each entity at each level of the hierarchy based on the state data. Each set of state metrics identifies time spent in the operational states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.