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Wafer-level flip chip device packages and related methods

  • US 8,896,010 B2
  • Filed: 07/24/2013
  • Issued: 11/25/2014
  • Est. Priority Date: 01/24/2012
  • Status: Expired due to Fees
First Claim
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1. An electronic device comprising:

  • a solid shaped volume of a polymeric binder;

    suspended within the binder, a semiconductor die having a first face, a second face opposite the first face, and at least one sidewall spanning the first and second faces, the semiconductor die being a bare-die light-emitting element comprising a plurality of active semiconductor layers that cooperatively emit light;

    disposed on the first face of the semiconductor die, at least two spaced-apart contacts each having a terminal end not covered by the polymeric binder, the contacts each contacting a different active semiconductor layer of the semiconductor die; and

    disposed over a portion of the polymeric binder and in electrical contact with the terminal ends of the contacts, an anisotropic conductive adhesive (ACA),wherein (i) at least a portion of the polymeric binder is transparent to a wavelength of light emitted by the bare-die light-emitting element and (ii) the polymeric binder contains therein a wavelength-conversion material for absorption of at least a portion of light emitted from the bare-die light-emitting element and emission of converted light having a different wavelength, converted light and unconverted light emitted by the bare-die light-emitting element combining to form mixed light.

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