Guided inspection of a semiconductor wafer based on systematic defects
US10605745B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jun 28, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Jun 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8854
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A candidate defect may be identified at a semiconductor wafer. A determination may be made as to whether the candidate defect at the semiconductor wafer corresponds to a systematic defect or a random defect. In response to determining that the candidate defect at the semiconductor wafer corresponds to a systematic detect, the candidate defect at the semiconductor wafer may be provided to a defect review tool for review by the defect review tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.