Methods and apparatus for improving reliability of cover substrate against impact fractures
US10590032B2 · kind B2 · utility
0Cited by
14References
15Claims
0Family size
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Key dates
| Filing date | Oct 22, 2015 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Feb 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/185
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A substrate having inner and outer major surfaces, a plurality of edge surfaces, and a plurality of corner surfaces; and at least one of: (i) a coating applied over a limited area of the outer major surface of the substrate to produce a composite structure, (ii) an intermediate layer applied to the inner major surface of the substrate, and (iii) an elongate discontinuity disposed at one or more corners of the substrate, each of which operates to reduce catastrophic failures in the substrate resulting from a dynamic sharp impact to the outer major surface of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.