The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2019
Filed:
Jan. 12, 2016
Corning Incorporated, Corning, NY (US);
Moussa N'Gom, Painted Post, NY (US);
Garrett Andrew Piech, Corning, NY (US);
James Joseph Watkins, Corning, NY (US);
Kristopher Allen Wieland, Painted Post, NY (US);
Chad Michael Wilcox, Horseheads, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
Systems and methods for laser-cutting thermally tempered substrates are disclosed. In one embodiment, a method of separating a thermally tempered substrate includes directing a laser beam focal line such that at least a portion of the laser beam focal line is within a bulk of the thermally tempered substrate. The focused pulsed laser beam is pulsed to form a sequence of pulse bursts comprising one or more sub-pulses. The laser beam focal line produces a damage track within the bulk of the tempered substrate along the laser beam focal line. Relative motion is provided between the focused pulsed laser beam and the tempered substrate such that the pulsed laser beam forms a sequence of damage tracks within the tempered substrate. Individual damage tracks of the sequence of damage tracks are separated by a lateral spacing, and one or more microcracks connect adjacent damage tracks of the sequence of damage tracks.