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:
Jul. 06, 2021
Filed:
Nov. 11, 2014
Applicant:
Rofin-sinar Technologies Inc., Plymouth, MI (US);
Inventor:
S. Abbas Hosseini, Orlando, FL (US);
Assignee:
ROFIN-SINAR TECHNOLOGIES LLC, Plymouth, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B 33/09 (2006.01); C03B 33/095 (2006.01); B23K 26/364 (2014.01); B23K 26/082 (2014.01); C03B 33/02 (2006.01); B23K 26/402 (2014.01); B23K 26/38 (2014.01); C03B 33/04 (2006.01); B23K 103/00 (2006.01);
U.S. Cl.
CPC ...
C03B 33/091 (2013.01); B23K 26/082 (2015.10); B23K 26/364 (2015.10); B23K 26/38 (2013.01); B23K 26/402 (2013.01); C03B 33/0222 (2013.01); C03B 33/0955 (2013.01); B23K 2103/50 (2018.08); C03B 33/04 (2013.01);
Abstract
A method for machining and releasing closed forms from a transparent, brittle substrate includes using a burst of ultrafast laser pulses to drill patterns of orifices in the substrate. Orifices are formed by photoacoustic compression and they extend completely or partially in the transparent substrate. A scribed line of spaced apart orifices in the transparent substrate comprise a closed form pattern in the substrate. A heat source is applied in a region about said scribed line of spaced apart orifices until the closed form pattern releases from the transparent substrate.