Color control by alteration of wavelength converting element

Details Color control by alteration of wavelength converting element Color control by alteration of wavelength converting element

2006-05-31

2008-12-09

Dang, Phuc T (Department: 2892)

Semiconductor device manufacturing: process

Making device or circuit emissive of nonelectrical signal

C438S025000, C438S028000, C257S088000, C257S089000

Reexamination Certificate

active

07462502

ABSTRACT:
A light emitting device is produced by depositing a layer of wavelength converting material over the light emitting device, testing the device to determine the wavelength spectrum produced and correcting the wavelength converting member to produce the desired wavelength spectrum. The wavelength converting member may be corrected by reducing or increasing the amount of wavelength converting material. In one embodiment, the amount of wavelength converting material in the wavelength converting member is reduced, e.g., through laser ablation or etching, to produce the desired wavelength spectrum.

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