Metal plate for manufacturing deposition mask and manufacturing method for metal plate, and deposition mask and manufacturing method for deposition mask
US11237481B2 · kind B2 · utility
2Cited by
0References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 21, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Sep 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/166
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The metal plate includes a plurality of pits located on the surface of the metal plate. The manufacturing method for a metal plate for use in manufacturing of a deposition mask includes an inspection step of determining a quality of the metal plate based on a sum of volumes of a plurality of pits located at a portion of the surface of the metal plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.