Patents by Inventor EPISTAR CORPORATION
EPISTAR CORPORATION has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20140070250Abstract: A light-emitting device of an embodiment of the present application comprises a substrate; a first semiconductor light-emitting structure formed on the substrate, wherein the first semiconductor light-emitting structure comprises a first semiconductor layer having a first conductivity type, a second semiconductor layer having a second conductivity type and a first active layer formed between the first semiconductor layer and the second semiconductor layer, wherein the first active layer is capable of emitting a first light having a first dominant wavelength; and a first thermal-sensitive layer formed on a path of the first light, wherein the first thermal-sensitive layer comprises a material characteristic which varies with a temperature change.Type: ApplicationFiled: April 3, 2013Publication date: March 13, 2014Inventor: Epistar Corporation
-
Publication number: 20140048836Abstract: A light-emitting device comprises a semiconductor light-emitting stacked layer having a first connecting surface, wherein the semiconductor light-emitting stacked layer comprises a first alignment pattern on the first connecting surface, and a substrate under the semiconductor light-emitting stacked layer, wherein the substrate has a second connecting surface being operable for connecting with the first connecting surface, wherein the substrate comprises a second alignment pattern on the second connecting surface, and the second alignment pattern is corresponding to the first alignment pattern.Type: ApplicationFiled: March 4, 2013Publication date: February 20, 2014Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20140048830Abstract: A method of fabricating a light-emitting device comprising steps of: providing a substrate, an active layer, and a first semiconductor layer between the substrate and the active layer; removing part of the active layer; and forming a rough structure in the first semiconductor layer while keeping the active layer attached to the substrate.Type: ApplicationFiled: December 28, 2012Publication date: February 20, 2014Applicant: Epistar CorporationInventor: Epistar Corporation
-
Publication number: 20130221391Abstract: A light emitting device comprising: a substrate, wherein the substrate comprising a first major surface, a second major surface opposite to the first major surface, and a sidewall wherein at least partial of the sidewall is a substantially textured surface with a depth of 10˜150 ?m; and a light emitting stack layer formed on the substrate.Type: ApplicationFiled: April 12, 2013Publication date: August 29, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20130221395Abstract: A optoelectronic device comprises a semiconductor stack layer; a first transparent conductive oxide (abbreviate as “TCO” hereinafter) layer located on the semiconductor stack layer, wherein the first TCO layer has at least one opening; and a second TCO layer covering the first TCO layer, wherein the second TCO layer is filled into the opening of the first TCO layer and contacted with the semiconductor stack layer, and one of the first TCO layer and the second TCO layer forms an ohmic contact with the semiconductor stack layer.Type: ApplicationFiled: February 4, 2013Publication date: August 29, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20130222731Abstract: The application discloses an array-type light-emitting device comprising a substrate, a semiconductor light-emitting array formed on the substrate and emitting a first light with a first spectrum, wherein the semiconductor light-emitting array comprises a first light-emitting unit and a second light-emitting units, a first wavelength conversion layer formed on the first light-emitting unit for converting the first light into a third light with a third spectrum, and a circuit layer connecting the first light-emitting unit and the second light-emitting unit in a connection form to make the first light-emitting and the second light-emitting unit light alternately in accordance with a predetermined clock when driving by a power supply.Type: ApplicationFiled: April 1, 2013Publication date: August 29, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20130207135Abstract: A light emitting element is provided in this application, including a carrier; a conductive connecting structure disposed on the carrier and including a transparent conductive connecting layer; and an epitaxial stack structure disposed on the conductive connecting structure and including a plurality of electrically connected epitaxial light-emitting stacks, which substantially have the same width.Type: ApplicationFiled: March 25, 2013Publication date: August 15, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20130200423Abstract: The present application provides an optoelectronic semiconductor device, comprising: a substrate; an optoelectronic system on the substrate; a barrier layer on the optoelectronic system, wherein the barrier layer thickness is not smaller than 10 angstroms; and an electrode on the barrier layer.Type: ApplicationFiled: January 23, 2013Publication date: August 8, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20130200414Abstract: An encapsulated light-emitting diode device is disclosed. The encapsulated light-emitting diode device includes a circuit carrier including a surface; a light-emitting device including a transparent substrate, the transparent substrate including a first surface and a second surface; a light-emitting diode chip located on the first surface of the transparent substrate; and a first transparent glue covering the light-emitting diode chip and formed on the first surface; wherein the first surface and the surface comprise an included angle larger than zero; wherein the first transparent glue has a circular projection on the first surface and the light-emitting diode chip is substantially located at the center of the circular projection.Type: ApplicationFiled: January 29, 2013Publication date: August 8, 2013Applicant: EPISTAR CORPORATIONInventor: Epistar corporation
-
Publication number: 20130201321Abstract: Disclosed is a method for testing a light-emitting device comprising the steps of: providing an integrating sphere comprising an inlet port and a first exit port; disposing the light-emitting device close to the inlet port of the integrating sphere; providing a current source to drive the light-emitting device to form an image of the light-emitting device in driven state; providing an image receiving device and to receive the image of the light-emitting device, wherein the image receiving device is connected to the first exit port of the integrating sphere; and determining a luminous intensity of the light-emitting device according to the image. An apparatus for testing a light-emitting device is also disclosed.Type: ApplicationFiled: January 15, 2013Publication date: August 8, 2013Inventor: Epistar Corporation
-
Publication number: 20130181245Abstract: A light-emitting device including: a light-emitting stacked layer having first conductivity type semiconductor layer, a light-emitting layer formed on the first conductivity type semiconductor layer, and a second conductivity type semiconductor layer formed on the light-emitting layer, wherein the upper surface of the second conductivity type semiconductor layer is a textured surface; a first planarization layer formed on a first part of the upper surface of the second conductivity type semiconductor layer; a first transparent conductive oxide layer formed on the first planarization layer and a second part of the second conductivity type semiconductor layer, including a first portion in contact with the first planarization layer and a second portion having a first plurality of cavities in contact with the second conductivity type semiconductor layer;; and a first electrode formed on the first portion of the first transparent conductive oxide layer.Type: ApplicationFiled: February 20, 2013Publication date: July 18, 2013Applicant: EPISTAR CORPORATIONInventor: Epistar Corporation
-
Publication number: 20130164873Abstract: A nitride-based light-emitting device includes a substrate and a plurality of layers formed over the substrate in the following sequence: a nitride-based buffer layer formed by nitrogen, a first group III element, and optionally, a second group III element, a first nitride-based semiconductor layer, a light-emitting layer, and a second nitride-based semiconductor layer.Type: ApplicationFiled: February 25, 2013Publication date: June 27, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20130140581Abstract: An optical device is provided. Multi-layer structures are disposed on a substrate, wherein each of the multi-layer structures is consisting of at least two insulated layers with different refractive indexes formed alternately. A buffer layer covers the multi-layer structures, so that said multi-layer structures are disposed between the buffer layer and the substrate, wherein said buffer layer is an un-doped GaN based semiconductor layer. A first conductive semiconductor layer is disposed on the buffer layer. An active layer is disposed on said first conductive semiconductor layer. A second conductive semiconductor layer is disposed on said active layer and a transparent conductive layer is disposed on said second conductive semiconductor layer.Type: ApplicationFiled: January 28, 2013Publication date: June 6, 2013Applicants: HUGA OPTOTECH INC., EPISTAR CORPORATIONInventors: EPISTAR CORPORATION, HUGA OPTOTECH Inc.
-
Publication number: 20130134457Abstract: An optoelectronic device comprising, a substrate and a first transition stack formed on the substrate comprising a first transition layer formed on the substrate having a hollow component formed inside the first transition layer, a second transition layer formed on the first transition layer, and a reflector rod formed inside the second transition layer.Type: ApplicationFiled: December 31, 2012Publication date: May 30, 2013Applicant: EPISTAR CORPORATIONInventor: Epistar Corporation
-
Publication number: 20130120999Abstract: This disclosure discloses an illumination apparatus. The illumination apparatus comprises an inner cover comprising a top surface having a first length; a pedestal on which the inner cover is disposed comprising a top surface having a second length; and a holder supporting the pedestal; wherein the first length is greater than the second length.Type: ApplicationFiled: September 28, 2012Publication date: May 16, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION
-
Publication number: 20130119429Abstract: A light-emitting element includes a light-emitting stack includes: a first semiconductor layer; an active layer formed on the first semiconductor layer; and a second semiconductor layer formed on the active layer; a recess structure formed through the second semiconductor layer, the active layer, and extended in the first semiconductor layer, wherein the first semiconductor layer includes a contact region defined by the recess structure; a first electrode structure including a first contact portion on the contact region of the first semiconductor layer, and a second contact portion laterally extended from the first contact portion into the first semiconductor layer; and a dielectric layer formed on side surfaces of the second semiconductor layer and the active layer to insulate the second semiconductor layer and the active layer from the first contact portion.Type: ApplicationFiled: December 31, 2012Publication date: May 16, 2013Applicant: EPISTAR CORPORATIONInventor: Epistar Corporation
-
Publication number: 20130115725Abstract: A light emitting diode having a transparent substrate and a method for manufacturing the same. The light emitting diode is formed by creating two semiconductor multilayers and bonding them. The first semiconductor multilayer is formed on a non-transparent substrate. The second semiconductor multilayer is created by forming an amorphous interface layer on a transparent substrate. The two semiconductor multilayers are bonded and the non-transparent substrate is removed, leaving a semiconductor multilayer with a transparent substrate.Type: ApplicationFiled: December 28, 2012Publication date: May 9, 2013Applicant: EPISTAR CORPORATIONInventor: Epistar Corporation
-
Publication number: 20130113014Abstract: The application provides an optoelectronic device structure, comprising a semiconductor stack, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer; a first electrode electrically connecting with the first conductivity type semiconductor layer, and further comprising a first extension electrode; a second electrode electrically connecting with the second conductivity type semiconductor layer; and a plurality of electrical restraint contact areas between the semiconductor stack and the first extension electrode, wherein the plurality of electrical restraint contact areas is distributed in a variable interval.Type: ApplicationFiled: November 1, 2012Publication date: May 9, 2013Applicant: Epistar CorporationInventor: Epistar Corporation
-
Publication number: 20130099268Abstract: This invention discloses a wafer-scaled light-emitting structure comprising a supportive substrate; an anti-deforming layer; a bonding layer; and a light-emitting stacked layer, wherein the anti-deforming layer reduces or removes the deformation like warp caused by thinning of the substrate.Type: ApplicationFiled: October 29, 2012Publication date: April 25, 2013Applicant: Epistar CorporationInventor: Epistar Corporation
-
Publication number: 20130092595Abstract: A wafer carrier comprises a supporting body having a height and comprising an opening, wherein a bottom surface of the opening is a curved surface; and a plurality of supporting rods formed around a periphery of the supporting body. Another aspect of the present application provides a manufacturing method of the wafer carrier. The method comprises forming an epitaxial layer on a growth substrate to form a wafer structure; measuring a curvature radius of the wafer structure; and providing the wafer carrier described above in accordance with the curvature radius of the wafer structure.Type: ApplicationFiled: October 11, 2012Publication date: April 18, 2013Applicant: EPISTAR CORPORATIONInventor: EPISTAR CORPORATION