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. 04, 2014
Filed:
Jan. 11, 2008
Ashay Chitnis, Goleta, CA (US);
James Ibbetson, Santa Barbara, CA (US);
Bernd Keller, Santa Barbara, CA (US);
Ashay Chitnis, Goleta, CA (US);
James Ibbetson, Santa Barbara, CA (US);
Bernd Keller, Santa Barbara, CA (US);
Cree, Inc., Goleta, CA (US);
Abstract
Methods for fabricating light emitting diode (LED) chips one of which comprises flip-chip mounting a plurality of LEDs on a surface of a submount wafer and forming a coating over said LEDs. The coating comprising a conversion material at least partially covering the LEDs. The coating is planarized to the desired thickness with the coating being continuous and unobstructed on the top surface of the LEDs. The LEDs chips are then singulated from the submount wafer. An LED chip comprising a lateral geometry LED having first and second contacts, with the LED flip-chip mounted to a submount by a conductive bonding material. A phosphor loaded binder coats and at least partially covers the LED. The binder provides a substantially continuous and unobstructed coating over the LED. The phosphor within the coating absorbs and converts the wavelength of at least some of the LED light with the coating planarized to achieve the desired emission color point of the LED chip.