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Phosphor deposition method and apparatus for making light emitting diodes

  • US 20070128745A1
  • Filed: 12/01/2005
  • Published: 06/07/2007
  • Est. Priority Date: 12/01/2005
  • Status: Abandoned Application
First Claim
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1. A method of depositing uniform layers of a matrix containing light converting materials onto light emitting diode chips, said method comprising the steps of:

  • mixing at least one powder of a light converting material in a support matrix to provide a homogeneous mixture having a substantially uniform distribution of said material throughout;

    introducing a carrier into said mixture of light converting material and support matrix to reduce the viscosity of said mixture for further processing;

    atomizing said mixture; and

    , depositing one or more layers of said mixture onto at least one light emitting diode chip to form at least one substantially uniform matrix layer containing said light converting material.

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