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US 2026/0265122 A1Published application
Glass-based substrate and methods of making the same
AssigneeCorning Incorporated
InventorsJoy Banerjee, Albert Joseph Fahey, Aize Li, Cheol Hwi Lim, Yu-Jiung Lin, Christine Marie Mahoney Fahey, James Joseph Price, Vitor Marino Schneider
Life of this patent
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Abstract
Glass-based substrates have a substrate thickness from 20 micrometers to 200 micrometers and a depletion layer extending from a first major surface to a first depth from 1 nanometers to 75 nanometers. The depletion layer is depleted in one or more alkali metal oxide, alkaline earth metal oxide, alumina, or combinations thereof relative to a bulk. The depletion layer is enriched in silica relative to the bulk.
Claims20
A glass-based substrate comprising:
- a first major surface and a second major surface opposite the first major surface, a substrate thickness defined between the first major surface and the second major surface, and the substrate thickness is from 20 micrometers to 200 micrometers;
- and
- a depletion layer extending from the first major surface to a first depth from the first major surface, the depletion layer is depleted in one or more alkali metal oxide, alkaline earth metal oxide, alumina, or combinations thereof relative to a bulk of the glass-based substrate, the depletion layer is enriched in silica relative to the bulk, and the first depth is from 1 nanometer to 75 nanometers.
Dependencies are inferred from the claim text.