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:
Nov. 06, 2012
Filed:
Mar. 25, 2010
Applicants:
Douglas Garcia, Beaverton, OR (US);
Vernon Cooke, Tigard, OR (US);
Spencer Barrett, Beaverton, OR (US);
Inventors:
Douglas Garcia, Beaverton, OR (US);
Vernon Cooke, Tigard, OR (US);
Spencer Barrett, Beaverton, OR (US);
Assignee:
Electro Scientific Industries, Inc., Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved method and apparatus for testing and sorting electro-optic devices by both electrical and optical properties at high speed is disclosed. Electro-optic devices, in particular light emitting diodes, are singulated by a singulation device and transferred to a linear track where they are tested for electrical and optical properties. The devices are then sorted into a large number of different bins depending upon the tested properties.