Phosphor-coated light emitting diodes including tapered sidewalls, and fabrication methods therefor

US6853010B2 · kind B2 · utility

Assignee

• Cree, Inc. · US

Inventors

• David B. Slater, Jr. · Durham, US
• Gerald H. Negley · Durham, US

Key dates

• Filing date: Sep 9, 2003
• Grant date: Feb 8, 2005
• Expiry date: Sep 9, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/819

Abstract

A light emitting diode includes a substrate having first and second opposing faces and a sidewall 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 is provided on the oblique sidewall. The oblique sidewall can allow more uniform phosphor coatings than conventional orthogonal sidewalls.