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. 24, 2012
Filed:
May. 19, 2010
Geng Chen, Fremont, CA (US);
Jonathan Melman, San Ramon, CA (US);
Geng Chen, Fremont, CA (US);
Jonathan Melman, San Ramon, CA (US);
Intematix Corporation, Fremont, CA (US);
Abstract
A method of manufacturing a light emitting device comprises: a) depositing over substantially the entire surface of a LED diode wafer having an array of LEDs formed on a surface thereof a mixture of at least one phosphor material and a polymer material, wherein the polymer material is transmissive to light generated by the LEDs and to light generated by the at least one phosphor material; b) mechanically stamping the phosphor/polymer mixture with a stamp having features configured such as to form passages in the phosphor/polymer corresponding to electrode contact pads of each LED thereby enabling access to each electrode contact pad; c) curing the polymer; d) removing the stamp; and e) dividing the LED wafer into individual light emitting devices. The stamp comprises a dissolvable material (polyvinyl alcohol) and the stamp is removed by dissolving it using a solvent (e.g. water).