Pattern data generation method, pattern verification method, and optical image calculation method
US8984454B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Mar 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to an embodiment, a pattern data generation method is provided. In the pattern data generation method, when a resist on a substrate is exposed using a mask, an optical image at a designated resist film thickness position is calculated using a mask pattern. Feature quantity related to a shape of a resist pattern at the resist film thickness position is extracted, based on the optical image. Also, whether the resist pattern is failed is determined, based on the feature quantity, and pattern data of a mask pattern determined as failed is corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.