Invention Grant
- Patent Title: Coated glass-based articles with engineered stress profiles
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Application No.: US16482035Application Date: 2018-01-31
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Publication No.: US11028014B2Publication Date: 2021-06-08
- Inventor: Jason Thomas Harris , Guangli Hu
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: US NY Corning
- Agent Jeffrey A. Schmidt
- International Application: PCT/US2018/016163 WO 20180131
- International Announcement: WO2018/144554 WO 20180809
- Main IPC: B32B17/06
- IPC: B32B17/06 ; B32B15/04 ; C03C21/00 ; C03C17/06 ; C03C17/22 ; C03C17/23 ; H05K5/00

Abstract:
A glass-based substrate having a Young's modulus, a first surface, and a second surface. A coating, on at least one of the first and second surfaces, having a Young's modulus equal to or greater than the substrate Young's modulus. A compressive region having a compressive stress CS of from 750 MPa to 1200 MPa at a surface and extending to a depth of compression (DOC). The compressive region having a first portion and a second portion, the first portion extending from the first surface up to a first depth, the second portion extending from the first depth to the DOC, points in the first portion comprise a tangent having a slope that is less than −15 MPa/micrometers and greater than −60 MPa/micrometers, and points in the second portion comprise a tangent having a slope that is less than or equal to −1 MPa/micrometers and greater than −12 MPa/micrometers.
Public/Granted literature
- US20190352226A1 COATED GLASS-BASED ARTICLES WITH ENGINEERED STRESS PROFILES Public/Granted day:2019-11-21
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