Methods for laser scribing and breaking thin glass
US8426767B2 · kind B2 · utility
7Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Nov 29, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B33/091
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a vent in a glass substrate includes forming a defect in the glass substrate on a scribe line. A beam spot of a laser may be directed onto the defect and advanced along the scribe line. A cooling jet may be directed onto the defect such that the surface of the glass substrate is cooled from a maximum temperature. Thereafter, the cooling spot may be advanced along the scribe line with the beam spot to form the vent in the glass substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.