Patent application number | Description | Published |
20120326188 | REFLECTIVE POCKETS IN LED MOUNTING - An LED device with improved LED efficiency is presented. An LED die is positioned within a pocket formed by a substrate and an opening in a supporting layer arranged thereon. The increase in the LED efficiency is achieved by providing a device where at least a portion of the pocket surface is reflective. This portion of the pocket surface is reflective because it is covered by either a reflective layer of foil or film, or a reflective coating, or it is polished. | 12-27-2012 |
20130009183 | REFLECTIVE CIRCUIT BOARD FOR LED BACKLIGHT - An LED device with improved LED efficiency is presented. A top surface of a circuit board carrying the LED die is covered with a reflective layer. The reflective surface on top of the circuit board allows the light reflected off a surface of a waveguide to be recycled by being redirected back to the waveguide. | 01-10-2013 |
20130020606 | CIRCUIT BOARD WITH THERMO-CONDUCTIVE PILLAR - An LED device with improved circuit board LED support structure is presented. A top surface of a thermally-conductive substrate of this LED device comprises a thermally-conductive pillar. The pillar is not covered with a dielectric layer and an LED package is arranged directly on the pillar with the LED packages bottom thermally-conductive plate in direct contact with the pillar top surface. | 01-24-2013 |
20130306964 | FLIP LIGHT EMITTING DIODE CHIP AND METHOD OF FABRICATING THE SAME - A method of fabricating a light emitting diode device comprises providing a substrate, growing an epitaxial structure on the substrate. The epitaxial structure includes a first layer on the substrate, an active layer on the first layer and a second layer on the active layer. The method further comprises depositing a conductive and reflective layer on the epitaxial structure, forming a group of first trenches and a second trench. Each of the first and second trenches extends from surface of the conductive and reflective layer to the first layer to expose part of the first layer. The method further comprises depositing conductive material to cover a portion of the conductive and reflective layer to form a first contact pad, and cover surfaces between adjacent first trenches to form a second contact pad. The second contact pad electrically connects the first layer by filling the conductive material in the first trenches. | 11-21-2013 |
20140069695 | Designs and Fabrication Processes of a Heatsink - A heat sink dissipates heat that is generated by an electronic component on a top surface of a print circuit board. A portion of the print circuit board is removed to expose a portion of bottom surface of the electronic component. The heat sink comprises a heat sink body of a first thermally conductive material and an embossing pattern formed on a first surface of the heat sink body. The embossing pattern includes a surface area that is defined by a perimeter circumscribing the embossing pattern. The embossing pattern is made of a second thermally conductive material and is coupled to the electronic component. | 03-13-2014 |
20140116613 | Method of Forming Thermal Conductive Pillar in Metal Core Printed Circuit Board - A method of forming a thermal conductive pillar in a metal core printed circuit board comprises providing a substrate, depositing a dielectric layer on top surface of the substrate, depositing a conductive layer on top surface of the dielectric layer, forming a space in the metal core printed circuit board by selectively removing at least part of dielectric material from the dielectric layer, and depositing thermal conductive material in the space to form a thermal conductive pillar, wherein the thermal conductive pillar conducts heat generated by a device that is assembled with the metal core printed circuit board. | 05-01-2014 |
20140332820 | Flip Light Emitting Diode Chip and Method of Fabricating the Same - A method of fabricating a light emitting diode device comprises depositing conductive material to cover a portion of surface of a conductive and reflective layer to form a first contact pad, and surfaces between adjacent first trenches to form a second contact pad; and depositing a first passivation layer over uncovered portion of surface of the conductive and reflective layer to form a first planar passivation contact surface between the first contact pad and the second trench and depositing bonding material to cover a portion of surface of the first contact pad, a portion of the second contact pad and a portion of the first planar passivation contact to form a first light emitting diode bonding pad on the first contact pad, a second light emitting diode bonding pad on the second contact pad, and a third light emitting diode bonding pad on the first planar passivation contact. | 11-13-2014 |