Phosphor-coated light emitting diodes including tapered...

Details Phosphor-coated light emitting diodes including tapered... Phosphor-coated light emitting diodes including tapered...

H - Electricity

01

L

H01L 33/00 (2006.01)

Patent

CA 2495149

A light emitting diode includes a substrate having first and second opposing faces (200a, 200b) and a sidewall (200d) between the first and second opposing faces that extends at an oblique angle from the second face towards the first face. A conformal phosphor layer (220) is provided on the oblique sidewall. The oblique sidewall can allow more uniform phosphor coatings than conventional orthogonal sidewalls.

L'invention concerne une diode électroluminescente comportant un substrat présentant des première et deuxième faces opposées (200a, 200b) et une paroi latérale (200d) située entre les première et deuxième faces opposées, s'étendant de façon oblique de la deuxième face vers la première face. Une couche de phosphore conforme (220) est présente sur la paroi latérale oblique. Ladite paroi oblique permet d'obtenir une plus grande uniformité des revêtements phosphore que des parois latérales orthogonales habituelles.

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