Patent application number | Description | Published |
20130140591 | STRUCTURE AND METHOD FOR LED WITH PHOSPHOR COATING - The present disclosure provides a light emitting diode (LED) apparatus. The LED apparatus includes an LED emitter having a top surface; and a phosphor feature disposed on the LED emitter. The phosphor feature includes a first phosphor film disposed on the top surface of the LED emitter and having a first dimension defined in a direction parallel to the top surface of the LED emitter; a second phosphor film disposed on the first phosphor film and having a second dimension defined in the direction; and the second dimension is substantially less than the first dimension. | 06-06-2013 |
20140106488 | STRUCTURE AND METHOD FOR LED WITH PHOSPHOR COATING - The present disclosure provides a light emitting diode (LED) apparatus. The LED apparatus includes an LED emitter having a top surface; and a phosphor feature disposed on the LED emitter. The phosphor feature includes a first phosphor film disposed on the top surface of the LED emitter and having a first dimension defined in a direction parallel to the top surface of the LED emitter; a second phosphor film disposed on the first phosphor film and having a second dimension defined in the direction; and the second dimension is substantially less than the first dimension. | 04-17-2014 |
20140209930 | Multi-Vertical LED Packaging Structure - The present disclosure involves a light-emitting diode (LED) packaging structure. The LED packaging structure includes a submount having a substrate and a plurality of bond pads on the substrate. The LED packaging structure includes a plurality of p-type LEDs bonded to the substrate through a first subset of the bond pads. The LED packaging structure includes a plurality of n-type LEDs bonded to the substrate through a second subset of the bond pads. Some of the bond pads belong to both the first subset and the second subset of the bond pads. The p-type LEDs and the n-type LEDs are arranged as alternating pairs. The LED packaging structure includes a plurality of transparent and conductive components each disposed over and electrically interconnecting one of the pairs of the p-type and n-type LEDs. The LED packaging structure includes one or more lenses disposed over the n-type LEDs and the p-type LEDs. | 07-31-2014 |
20140231836 | STRUCTURE AND METHOD FOR LED WITH PHOSPHOR COATING - The present disclosure provides a light emitting diode (LED) apparatus. The LED apparatus includes an LED emitter having a top surface; and a phosphor feature disposed on the LED emitter. The phosphor feature includes a first phosphor film disposed on the top surface of the LED emitter and having a first dimension defined in a direction parallel to the top surface of the LED emitter; a second phosphor film disposed on the first phosphor film and having a second dimension defined in the direction; and the second dimension is substantially less than the first dimension. | 08-21-2014 |
20140264268 | METHOD AND APPARATUS FOR FABRICATING PHOSPHOR-COATED LED DIES - The present disclosure involves lighting apparatus. The lighting apparatus includes a first doped semiconductor layer. A light-emitting layer is disposed over the first doped semiconductor layer. A second doped semiconductor layer is disposed over the light-emitting layer. The second doped semiconductor layer has a different type of conductivity than the first doped semiconductor layer. A photo-conversion layer is disposed over the second doped semiconductor layer and over side surfaces of the first and second doped semiconductor layers and the light-emitting layer. The photo-conversion layer has an angular profile. | 09-18-2014 |
Patent application number | Description | Published |
20140054616 | Method and Apparatus for Fabricating Phosphor-Coated LED Dies - The present disclosure involves a method of packaging a light-emitting diode (LED). According to the method, a group of metal pads and a group of LEDs are provided. The group of LEDs is attached to the group of metal pads, for example through a bonding process. After the LEDs are attached to the metal pads, each LED is spaced apart from adjacent LEDs. Also according to the method, a phosphor film is coated around the group of LEDs collectively. The phosphor film is coated on top and side surfaces of each LED and between adjacent LEDs. A dicing process is then performed to slice through portions of the phosphor film located between adjacent LEDs. The dicing process divides the group of LEDs into a plurality of individual phosphor-coated LEDs. | 02-27-2014 |
20140103372 | METHOD AND APPARATUS FOR PACKAGING PHOSPHOR-COATED LEDS - The present disclosure involves a method of packaging light-emitting diodes (LEDs). According to the method, a plurality of LEDs is provided over an adhesive tape. The adhesive tape is disposed on a substrate. In some embodiments, the substrate may be a glass substrate, a silicon substrate, a ceramic substrate, and a gallium nitride substrate. A phosphor layer is coated over the plurality of LEDs. The phosphor layer is then cured. The tape and the substrate are removed after the curing of the phosphor layer. A replacement tape is then attached to the plurality of LEDs. A dicing process is then performed to the plurality of LEDs after the substrate has been removed. The removed substrate may then be reused for a future LED packaging process. | 04-17-2014 |
20140151725 | Method and Apparatus for Fabricating Phosphor-Coated LED Dies - The present disclosure involves a method of packaging a light-emitting diode (LED). According to the method, a group of metal pads and a group of LEDs are provided. The group of LEDs is attached to the group of metal pads, for example through a bonding process. After the LEDs are attached to the metal pads, each LED is spaced apart from adjacent LEDs. Also according to the method, a phosphor film is coated around the group of LEDs collectively. The phosphor film is coated on top and side surfaces of each LED and between adjacent LEDs. A dicing process is then performed to slice through portions of the phosphor film located between adjacent LEDs. The dicing process divides the group of LEDs into a plurality of individual phosphor-coated LEDs. | 06-05-2014 |
20140291610 | METHOD AND APPARATUS FOR FABRICATING PHOSPHOR-COATED LED DIES - The present disclosure involves lighting apparatus. The lighting apparatus includes a light-emitting device. The light-emitting device includes a first doped semiconductor layer. A light-emitting layer is disposed over the first doped semiconductor layer. A second doped semiconductor layer is disposed over the light-emitting layer. The second doped semiconductor layer has a different type of conductivity than the first doped semiconductor layer. A photo-conversion layer is coated around the light-emitting device. A lens houses the light-emitting device and the photo-conversion layer within. The lens includes a first sub-layer and a second sub-layer. The first and second sub-layers have different characteristics. | 10-02-2014 |
20140291611 | METHOD AND APPARATUS FOR FABRICATING PHOSPHOR-COATED LED DIES - The present disclosure involves lighting apparatus. The lighting apparatus includes a first doped semiconductor layer. A light-emitting layer is disposed over the first doped semiconductor layer. A second doped semiconductor layer is disposed over the light-emitting layer. The second doped semiconductor layer has a different type of conductivity than the first doped semiconductor layer. A first conductive terminal and a second conductive terminal are each disposed below the first doped semiconductor layer. A photo-conversion layer is disposed over the second doped semiconductor layer and on side surfaces of the first and second doped semiconductor layers and the light-emitting layer. A bottommost surface of the photo-conversion layer is located closer to the second doped semiconductor layer than bottom surfaces of the first and second conductive terminals. | 10-02-2014 |
20140295593 | METHOD AND APPARATUS FOR FABRICATING PHOSPHOR-COATED LED DIES - The present disclosure involves a method. The method includes providing a substrate having a layer disposed thereon. A plurality of light-emitting devices is attached to the layer. A gel is applied over the substrate. The gel covers the plurality of light-emitting devices. The gel is shaped into a plurality of lenses. The lenses each cover a respective one of the light-emitting devices. The light-emitting devices are separated from one another. The substrate and the layer are removed. | 10-02-2014 |