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:
Oct. 21, 2014
Filed:
Dec. 17, 2009
Tommie W. Kelley, Shoreview, MN (US);
Andrew J. Ouderkirk, Singapore, SG;
Catherine A. Leatherdale, Woodbury, MN (US);
Tommie W. Kelley, Shoreview, MN (US);
Andrew J. Ouderkirk, Singapore, SG;
Catherine A. Leatherdale, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of forming a light conversion element includes providing a semiconductor construction having a first photoluminescent element epitaxially grown together with a second photoluminescent element. A first region is etched in the first photoluminescent element from a first side of the semiconductor construction and a second region is etched in the second photoluminescent element from a second side of the semiconductor construction. In some embodiments the wavelength converter is attached to an electroluminescent element, such as a light emitting diode (LED).