Patents by Inventor Jenn-Hwa Fu

Jenn-Hwa Fu 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).

  • Patent number: 9012942
    Abstract: The present disclosure provides a light-emitting device having a patterned interface composed of a plurality of predetermined patterned structures mutually distinct, wherein the plurality of predetermined patterned structures are repeatedly arranged in the patterned interface such that any two neighboring patterned structures are different from each other. The present disclosure also provides a manufacturing method of the light-emitting device. The method comprises the steps of providing a substrate, generating a random pattern arrangement by a computing simulation, forming a mask having the random pattern arrangement on the substrate, and removing a portion of the substrate thereby transferring the random pattern arrangement to the substrate.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: April 21, 2015
    Assignee: Epistar Corporation
    Inventors: Jenn-Hwa Fu, Cheng-Hsien Li, Chi-Hao Huang
  • Publication number: 20140206115
    Abstract: The present application provides a method of manufacturing an optoelectronic semiconductor device, comprising the steps of: providing a substrate; forming an optoelectronic system on the substrate; forming a barrier layer on the optoelectronic system; forming an electrode on the barrier layer; and annealing the optoelectronic semiconductor device; wherein the optoelectronic semiconductor device has a first forward voltage before the annealing step and has a second forward voltage after the annealing step, and a difference between the second forward voltage and the first forward voltage is smaller than 0.2 Volt.
    Type: Application
    Filed: March 19, 2014
    Publication date: July 24, 2014
    Applicant: EPISTAR CORPORATION
    Inventors: Tz Chiang YU, Jenn Hwa FU, Hsin Hsiung HUANG
  • Patent number: 8785219
    Abstract: The present application provides a method of manufacturing an optoelectronic semiconductor device, comprising the steps of: providing a substrate; forming an optoelectronic system on the substrate; forming a barrier layer on the optoelectronic system; forming an electrode on the barrier layer; and annealing the optoelectronic semiconductor device; wherein the optoelectronic semiconductor device has a first forward voltage before the annealing step and has a second forward voltage after the annealing step, and a difference between the second forward voltage and the first forward voltage is smaller than 0.2 Volt.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: July 22, 2014
    Assignee: Epistar Corporation
    Inventors: Tz Chiang Yu, Jenn Hwa Fu, Hsin Hsiung Huang
  • Patent number: 8716743
    Abstract: 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: Grant
    Filed: January 23, 2013
    Date of Patent: May 6, 2014
    Assignee: Epistar Corporation
    Inventors: Tz-Chiang Yu, Jenn-Hwa Fu, Hsin-Hsiung Huang
  • Publication number: 20130313596
    Abstract: The present disclosure provides a light-emitting device having a patterned interface composed of a plurality of predetermined patterned structures mutually distinct, wherein the plurality of predetermined patterned structures are repeatedly arranged in the patterned interface such that any two neighboring patterned structures are different from each other. The present disclosure also provides a manufacturing method of the light-emitting device. The method comprises the steps of providing a substrate, generating a random pattern arrangement by a computing simulation, forming a mask having the random pattern arrangement on the substrate, and removing a portion of the substrate thereby transferring the random pattern arrangement to the substrate.
    Type: Application
    Filed: May 28, 2013
    Publication date: November 28, 2013
    Inventors: Jenn-Hwa FU, Cheng-Hsien LI, Chi-Hao HUANG
  • Patent number: 7645624
    Abstract: A method for self bonding epitaxy includes forming a passivation layer on a substrate surface of a semiconductor lighting element; etching to form recesses and protrusive portions with the passivation layer located thereon; starting forming epitaxy on the bottom surface of the recesses; filling the recesses with an Epi layer; then covering the protrusive portions and starting self bonding upwards the epitaxy to finish the Epi layer structure. Such a self bonding epitaxy growing technique can prevent cavity generation caused by parameter errors of the epitaxy and reduce defect density, and improve the quality of the Epi layer and increase internal quantum efficiency.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 12, 2010
    Assignee: Tekcore Co., Ltd.
    Inventors: Yu-Chuan Liu, Hung-Cheng Lin, Wen-Chieh Hsu, Chia-Ming Lee, Jenn-Hwa Fu
  • Patent number: 7579202
    Abstract: The present invention discloses a method for fabricating a light emitting diode element, which incorporates an epitaxial process with an etching process to etch LED epitaxial layers bottom up and form side-protrudent structures, whereby the LED epitaxial layers have non-rectangular inclines, which can solve the problem of total reflection and promote light-extraction efficiency. Further, the method of the present invention has a simple fabrication process, which can benefit mass production and lower cost.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: August 25, 2009
    Assignee: Tekcore Co., Ltd.
    Inventors: Wen-Chieh Hsu, Yu-Chuan Liu, Jenn-Hwa Fu, Shih-Hung Lee, Tai-Chun Wang
  • Publication number: 20090162959
    Abstract: The present invention discloses a method for fabricating a light emitting diode element, which incorporates an epitaxial process with an etching process to etch LED epitaxial layers bottom up and form side-protrudent structures, whereby the LED epitaxial layers have non-rectangular inclines, which can solve the problem of total reflection and promote light-extraction efficiency. Further, the method of the present invention has a simple fabrication process, which can benefit mass production and lower cost.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Wen-Chieh HSU, Yu-Chuan Liu, Jenn-Hwa Fu, Shih-Hung Lee, Tai-Chun Wang
  • Publication number: 20090111202
    Abstract: A method for self bonding epitaxy includes forming a passivation layer on a substrate surface of a semiconductor lighting element; etching to form recesses and protrusive portions with the passivation layer located thereon; starting forming epitaxy on the bottom surface of the recesses; filling the recesses with an Epi layer; then covering the protrusive portions and starting self bonding upwards the epitaxy to finish the Epi layer structure. Such a self bonding epitaxy growing technique can prevent cavity generation caused by parameter errors of the epitaxy and reduce defect density, and improve the quality of the Epi layer and increase internal quantum efficiency.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Yu-Chuan Liu, Hung-Cheng Lin, Wen-Chieh Hsu, Chia-Ming Lee, Jenn-Hwa Fu
  • Patent number: D559802
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: January 15, 2008
    Assignee: Tekcore Co., Ltd.
    Inventors: Wen-Chieh Hsu, Liang-Jyi Yan, Jenn-Hwa Fu