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:
Jun. 04, 2013
Filed:
May. 01, 2009
Norihito Hamaguchi, Sunnyvale, CA (US);
Ghulam Hasnain, Sunnyvale, CA (US);
Norihito Hamaguchi, Sunnyvale, CA (US);
Ghulam Hasnain, Sunnyvale, CA (US);
Bridgelux, Inc., Livermore, CA (US);
Abstract
A method of manufacturing a light-emitting device using laser scribing to improve overall light output is disclosed. Upon placing a semiconductor wafer having light emitting diode ('LED') devices separated by streets on a wafer chuck, the process arranges a first surface of semiconductor wafer containing front sides of the LED devices facing up and a second surface of semiconductor wafer containing back sides of the LED devices facing toward the wafer chuck. After aligning a laser device over the first surface of the semiconductor wafer above a street, the process is configured to focus a high intensity portion of a laser beam generated by the laser device at a location in a substrate closer to the back sides of the LED devices.