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US 10,766,809 B2Granted
Ion exchange processes and chemically strengthened glass substrates resulting therefrom
AssigneeCorning Incorporated
InventorsSean Matthew Garner, Michael Lesley Sorensen
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Abstract
A method of performing ion exchange of a thin, flexible glass substrate having an average thickness equal to or less than about 0.3 mm to chemically strengthen the glass substrate is disclosed. The chemically strengthened glass substrate comprises a first compressive stress layer having a first depth of layer, and a second compressive stress layer having a second depth of layer, the first and second stress layers being separated by a layer of tensile stress. A laminated article comprising the chemically strengthened glass substrate is also described.
Claims17
A glass article comprising:
- a glass substrate including a first ion-exchanged surface and a second ion-exchanged surface opposite the first ion-exchanged surface, the first and second ion-exchanged surfaces defining an average thickness therebetween;
- a first compressive stress layer extending inward from the first ion-exchanged surface toward a center of the glass substrate comprising a first depth of layer DOL1, wherein DOL1 is greater than 25% of the average thickness of the glass substrate;
- a second compressive stress layer extending inward from the second ion-exchanged surface toward the center of the glass substrate comprising a second depth of layer DOL2 less than DOL1;
- and
- a second substrate is bonded to the first ion-exchanged surface.
2 more elements
Dependencies are inferred from the claim text.