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. 26, 2016
Filed:
Mar. 01, 2011
Jingzhou Xu, Ann Arbor, MI (US);
Jin Young Sohn, Ann Arbor, MI (US);
Gyu Cheon Cho, Ann Arbor, MI (US);
Lawrence Shah, Maitland, FL (US);
Jingzhou Xu, Ann Arbor, MI (US);
Jin Young Sohn, Ann Arbor, MI (US);
Gyu Cheon Cho, Ann Arbor, MI (US);
Lawrence Shah, Maitland, FL (US);
IMRA America, Inc., Ann Arbor, MI (US);
Abstract
Various embodiments may be used for laser-based modification of target material of a workpiece while advantageously achieving improvements in processing throughput and/or quality. Embodiments of a method of processing may include focusing and directing laser pulses to a region of the workpiece at a pulse width sufficiently short so that material is efficiently removed by nonlinear optical absorption from the region and a quantity of heat affected zone and thermal stress on the material within the region, proximate to the region, or both is reduced relative to a quantity obtainable using a laser with longer pulses. In at least one embodiment, an ultrashort pulse laser system may include at least one of a fiber amplifier or fiber laser. Various embodiments are suitable for at least one of dicing, cutting, scribing, and forming features on or within a composite material.