Supporting glass substrate and laminated body
US12234181B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Nov 9, 2020 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jul 11, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2204/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A supporting glass substrate includes a compression stress layer on a surface thereof, and has an average thermal expansion coefficient at 50° C. to 200° C. that is 7 ppm/° C. to 15 ppm/° C., an internal tensile stress that is 5 MPa to 55 MPa, and a depth of the compression stress layer that is 10 μm to 60 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.