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Using electrophoresis to produce a conformally coated phosphor-converted light emitting semiconductor

  • US 6,576,488 B2
  • Filed: 06/11/2001
  • Issued: 06/10/2003
  • Est. Priority Date: 06/11/2001
  • Status: Expired due to Term
First Claim
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1. A method of conformally coating a light emitting semiconductor structure with phosphor, said method comprising:

  • providing a submount having a conductive region;

    electrically coupling a light emitting semiconductor structure to said conductive region;

    applying a first bias voltage to charged phosphor particles in a solution; and

    applying a second bias voltage to said conductive region to induce said phosphor particles to substantially conformally deposit on at least one surface of said light emitting semiconductor structure.

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