Light-emitting diode die packages and illumination apparatuses using same
AssigneeEvergrand Holdings Limited
InventorYU-NUNG SHEN
Life of this patent
Estimating the term…
Abstract
The present invention relates to an LED die package, which has a light-emitting diode die having a sapphire layer, a first doped layer doped with a p- or n-type dopant, and a second doped layer doped with a different dopant from that doped in the first doped layer. A surface of the sapphire layer opposite to the surface on which the first doped layer is disposed is formed with generally inverted-pyramidal-shaped recesses and overlaid with a phosphor powder layer. Each of the first and the second doped layers has an electrode-forming surface formed with an electrode, on which an insulation layer is disposed and formed with exposure holes for exposing the electrodes. The exposure holes are each filled with an electrically conductive linker.
Claims2
A light-emitting diode die package, comprising:
- a light-emitting diode die having a sapphire layer, a first doped layer disposed on the sapphire layer and doped with a p- or n-type dopant, and a second doped layer disposed on the first doped layer and doped with a different dopant from that doped in the first doped layer, wherein a surface of the sapphire layer opposite to the surface on which the first doped layer is disposed is formed with a plurality of generally inverted-pyramidal-shaped recesses, and wherein each of the first doped layer and the second doped layer has an electrode-forming surface formed with an electrode, and wherein the recesses comprise inclined walls coated with metal layers;
- a support plate having a supporting surface, on which conductive contacts are disposed;
- a heat-dissipating film layer overlaid on the supporting surface of the supporting layer;
- a thermal conductive film layer overlaid on the heat-dissipating film layer;
- and
- a circular seat disposed on the thermal conductive film layer and having an upper edge, the upper edge of the circular seat being provided with conductive contacts, wherein the light-emitting diode die is positioned at a central portion of the circular seat by being secured to the thermal conductive film layer with a metal connecting layer, and wherein the electrodes provided on the first doped layer and the second doped layer are electrically connected to the conductive contacts provided on the circular seat via wires and the conductive contacts provided on the circular seat are electrically connected to the corresponding conductive contacts provided on the support plate via wires.
Dependencies are inferred from the claim text.