Patent ID: 8865493

Claim:
A method of forming a light conversion element, comprising: providing a semiconductor construction having a first photoluminescent element epitaxially grown together with a second photoluminescent element; etching a first region in the first photoluminescent element from a first side of the semiconductor construction; and etching a second region in the second photoluminescent element from a second side of the semiconductor construction, wherein the semiconductor construction is provided to be attached to a first substrate and the first region in the first photoluminescent element is etched while the semiconductor construction is attached to the first substrate, and the semiconductor construction is transferred from the first substrate to a second substrate and the second region in the second photoluminescent element is etched while the semiconductor construction is attached to the second substrate, and wherein the light conversion element comprises the first and second photoluminescent elements, the first photoluminescent element is configured to convert absorbed light to a first converted wavelength, and the second photoluminescent element is configured to convert absorbed light to a second converted wavelength.