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US 2013/0260494 A1Published application
Method for fabricating light emitting diode (led) dice with wavelength conversion layers
AssigneeSemiLEDS Optoelectronics Co., Ltd.
InventorJUI-KANG YEN
Life of this patent
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Abstract
A method for fabricating light emitting diode (LED) dice includes the steps of mixing wavelength conversion particles in a base material to a first weight percentage, mixing reflective particles in the base material to a second weight percentage, curing the base material to form a wavelength conversion layer having a selected thickness, and attaching the wavelength conversion layer to a die.
Claims20
A method for fabricating light emitting diode (LED) dice comprising:
- providing a light emitting diode (LED) die having a desired configuration;
- providing a base material in viscous form;
- providing a plurality of wavelength conversion particles having a first diameter and a plurality of reflective particles having a second diameter;
- mixing the wavelength conversion particles in the base material to a first weight percentage and the reflective particles in the base material to a second weight percentage;
- curing the base material to a selected thickness to form a wavelength conversion layer;
- and
- attaching the wavelength conversion layer to the die.
4 more elements
A method for fabricating a light emitting diode (LED) die comprising:
- providing a substrate comprising an epitaxial stack having an first-type confinement layer, a multiple quantum well (MQW) layer in electrical contact with the first-type confinement layer configured to emit electromagnetic radiation, and a second-type confinement layer in electrical contact with the multiple quantum well (MQW) layer;
- forming or providing a wavelength conversion layer configured to convert at least some of the electromagnetic radiation emitted by the multiple quantum well (MQW) layer into electromagnetic radiation having a different wavelength range,
- the wavelength conversion layer comprising a base material with a selected thickness, and a plurality of particles with a selected size and concentration embedded in the base material,
- the particles including a plurality of wavelength conversion particles having a first diameter and a first weight percentage in the base material, and a plurality of reflective particles having a second diameter and a second weight percentage in the base material;
- and
- attaching the wavelength conversion layer to the substrate.
3 more elements
Dependencies are inferred from the claim text.