Comprehensive analysis of queue times in microelectronic manufacturing
US8718809B2 · kind B2 · utility
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5References
25Claims
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Key dates
| Filing date | May 12, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Mar 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2111/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for determining a group of semiconductor manufacturing process steps with a similar influence on individual semiconductor products. The system generates a first table including time stamps for the individual semiconductor products. The system creates a second table including Q-times based on the first table. The Q-times refers to time differences between every pair of the time stamps. The system forms a dependency table by grouping the Q-times with similar dependencies together. The system identifies groups of the similar dependencies. The system extracts semiconductor process steps belonging to the groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.