Back to results
US 8,945,415 B2Granted
Method for etching a ceramic phosphor converter
AssigneeOsram Sylvania Inc.
InventorAlan Piquette
Life of this patent
Estimating the term…
Abstract
A method is described for etching ceramic phosphor converters. The method includes contacting a surface of the converter with a solution of phosphor acid for a time sufficient to etch the converter. The method is applicable to ceramic phosphor converters comprising a phosphor having a general formula MxAlyOz:RE wherein M is a metal and RE is a rare earth element.
Claims5
A method for etching a ceramic phosphor converter comprising:
- placing a surface of the ceramic phosphor converter in contact with a phosphoric acid solution for a time sufficient to etch the surface of the converter, the ceramic phosphor converter being selected from Lu3Al5O12:Ce, Y3Al5O12:Ce, Tb3Al5O12:Ce, (Lu,Y)3Al5O12:Ce, Y3(Al,Ga)5O12, or Y3(Al,Si)5(O, N)12:Ce.
Dependencies are inferred from the claim text.