Patents by Inventor Tzu-Chieh Hsu

Tzu-Chieh Hsu 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: 20120080697
    Abstract: A light-emitting element includes a supportive substrate; a reflective layer formed on the supportive substrate; a transparent layer formed on the reflective layer; a light-emitting stacked layer formed on the transparent layer; an etching-stop layer formed between the transparent layer and the reflective layer; and a plurality of contact parts formed between the light-emitting stacked layer and the transparent layer.
    Type: Application
    Filed: July 1, 2011
    Publication date: April 5, 2012
    Applicant: Epistar Corporation
    Inventors: Shih-I Chen, Chia-Liang Hsu, Tzu-Chieh Hsu, Han-Min Wu, Ye-Ming Hsu, Chien-Fu Huang, Chao-Hsing Chen, Chiu-Lin Yao, Hsin-Mao Liu, Chien-Kai Chun
  • Publication number: 20120055532
    Abstract: A semiconductor optoelectronic device comprises a growth substrate; a semiconductor epitaxial stack formed on the growth substrate comprising a sacrificial layer with electrical conductivity formed on the growth substrate; a first semiconductor material layer having a first electrical conductivity formed on the sacrificial layer, and a second semiconductor material layer having a second electrical conductivity formed on the first semiconductor material layer; and a first electrode directly formed on the growth substrate and electrically connected to the semiconductor epitaxial stack via the growth substrate.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 8, 2012
    Applicant: Epistar Corporation
    Inventors: Hsin-Ying Wang, Yi-Ming Chen, Tzu-Chieh Hsu, Chi-Hsing Chen, Chien-Kai Chung, Min-Hsun Hsieh, Chia-Liang Hsu, Chao-Hsing Chen, Chiu-Lin Yao, Chien-Fu Huang, Hsin-Mao Liu, Hsiang-Ling Chang
  • Publication number: 20120018750
    Abstract: A semiconductor optoelectronic device comprises an operating substrate; a semiconductor epitaxial stack unit disposed on the operating substrate comprising a first semiconductor material layer having a first electrical conductivity disposed on the operating substrate and a second semiconductor material layer having a second electrical conductivity disposed on the first semiconductor material layer; a transparent conductive layer disposed on the second semiconductor material layer, wherein the transparent conductive layer comprises a first surface, a directly contacting part disposed on the first surface and directly contacting with the second semiconductor material layer, a second surface substantially parallel with the first surface, and a directly contacting corresponding part disposed on the second surface corresponding to the directly contacting part; and a first electrode disposed on the operating substrate and electrically connected with the semiconductor epitaxial stack by the transparent conductive la
    Type: Application
    Filed: July 26, 2011
    Publication date: January 26, 2012
    Inventors: Hsin-Ying WANG, Yi-Ming Chen, Tzu-Chieh Hsu, Chi-Hsing Chen, Hsiang-Ling Chang
  • Publication number: 20110193119
    Abstract: One aspect of the present disclosure provides an optoelectronic device comprising a substrate; a first window layer on the substrate, having a first sheet resistance, a first thickness, and a first impurity concentration; a second window layer having a second sheet resistance, a second thickness, and a second impurity concentration; and a semiconductor system between the first window layer and the second window layer; wherein the second window layer comprises a semiconductor material different from the semiconductor system, and the second sheet resistance is greater than the first sheet resistance. One aspect of the present disclosure provides a method for manufacturing an optoelectronic device in accordance with the present disclosure.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 11, 2011
    Inventors: Shih-I CHEN, Chia-Liang HSU, Tzu-Chieh HSU, Chun-Yi WU, Chien-Fu HUANG
  • Publication number: 20110159624
    Abstract: A method of forming a light emitting diode is provided. The method includes providing a growth substrate; sequentially forming a sacrificial layer and an epitaxial layer on the growing substrate; forming one or more epitaxial layer openings penetrating the epitaxial layer and exposing the sacrificial layer; forming a supporting layer on the epitaxial layer, the supporting layer having one or more supporting layer openings penetrating the supporting layer and joining the epitaxial layer openings; and selectively etching the sacrificial layer to separate the growth substrate from the epitaxial layer.
    Type: Application
    Filed: December 30, 2010
    Publication date: June 30, 2011
    Inventors: Yi-Ming Chen, Tzu-Chieh Hsu, Chi-Hsing Chen, Hsin-Ying Wang
  • Publication number: 20110121291
    Abstract: A light-emitting element includes a light-emitting stack for emitting light and a substrate structure including: a first substrate disposed under the light-emitting stack and having a first surface facing the light-emitting stack; and a second substrate disposed under the light-emitting stack and having a second surface facing the light-emitting stack; and a reflective layer formed between the first substrate and the second substrate and having an inclined angle not perpendicular to the first surface.
    Type: Application
    Filed: February 7, 2011
    Publication date: May 26, 2011
    Inventors: Shih-I Chen, Chia-Liang Hsu, Chiu-Lin Yao, Tzu-Chieh Hsu, Chien-Fu Huang
  • Publication number: 20110101404
    Abstract: This disclosure discloses a light-emitting device. The light-emitting device comprises: a substrate; and a first light-emitting unit comprising a plurality of light-emitting diodes electrically connected to each other on the substrate. A first light-emitting diode in the first light-emitting unit comprises a first semiconductor layer with a first conductivity-type, a second semiconductor layer with a second conductivity-type, and a light-emitting stack formed between the first and second semiconductor layers. The first light-emitting diode in the first light-emitting unit further comprises a first connecting layer on the first semiconductor layer for electrically connecting to a second light-emitting diode in the first light-emitting unit; a second connecting layer, separated from the first connecting layer, formed on the first semiconductor layer; and a third connecting layer on the second semiconductor layer for electrically connecting to a third light-emitting diode in the first light-emitting unit.
    Type: Application
    Filed: January 12, 2011
    Publication date: May 5, 2011
    Inventors: Huang Chien Fu, Shih-I Chen, Yi Ming Chen, Tzu Chieh Hsu, Jhih-Sian Wang
  • Publication number: 20110001155
    Abstract: A method of fabricating a light emitting device comprising: providing a substrate, wherein the substrate comprises a first major surface and a second major surface opposite to the first major surface, forming a plurality of light emitting stack layers on the first major surface, forming an etching protection layer on the plurality of light emitting stack layers, forming a plurality of discontinuous holes or continuous lines on the substrate by a laser beam with the depth of 10˜150 ?m, cleaving the substrate through the plurality of discontinuous holes or continuous lines, providing a adhesion layer on the second major surface of the substrate, and expanding the adhesion layer to form a plurality of separated light emitting device.
    Type: Application
    Filed: June 28, 2010
    Publication date: January 6, 2011
    Inventor: Tzu-Chieh Hsu
  • Publication number: 20100213493
    Abstract: 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 partial 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 partial 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: Application
    Filed: April 2, 2010
    Publication date: August 26, 2010
    Inventors: Tzu-Chieh HSU, Ching-San Tao, Chen Ou, Min-Hsun Hsieh, Chao Hsing Chen
  • Publication number: 20100084679
    Abstract: A light-emitting device having a substrate, a light-emitting stack, and a transparent connective layer is provided. The light-emitting stack is disposed above the substrate and comprises a first diffusing surface. The transparent connective layer is disposed between the substrate and the first diffusing surface of the light-emitting stack; an index of refraction of the light-emitting stack is different from that of the transparent connective layer.
    Type: Application
    Filed: November 6, 2009
    Publication date: April 8, 2010
    Applicant: EPISTAR CORPORATION
    Inventors: Min-Hsun Hsieh, Tzu-Chieh Hsu, Ta-Cheng Hsu, Wei-Chih Peng, Ya-Ju Lee
  • Publication number: 20080128734
    Abstract: A light emitting device having a transparent substrate, a light emitting stack, and a transparent adhesive layer is provided. The light emitting stack is disposed above the transparent substrate and comprises a diffusing surface. The transparent adhesive layer is disposed between the transparent substrate and the diffusing surface of the light emitting stack; an index of refraction of the light emitting stack is different from that of the transparent adhesive layer.
    Type: Application
    Filed: November 15, 2007
    Publication date: June 5, 2008
    Applicant: EPISTAR CORPORATION
    Inventors: Min-Hsun Hsieh, Tzu-Chieh Hsu, Ta-Cheng Hsu, Wei-Chih Peng, Ya-Ju Lee
  • Publication number: 20070200493
    Abstract: The light-emitting apparatus comprises a substrate, a first semiconductor layer formed on the substrate, a light-emitting layer formed on the first semiconductor layer, a second semiconductor layer formed on the light-emitting layer, a first transparent conductive oxide layer formed on the second semiconductor layer, a reflective metal layer form on the transparent conductive oxide layer, and a first electrode formed on the reflective metal layer; characterized in that the first transparent conductive oxide layer is formed with a plurality of cavities on the interface between the first transparent conductive oxide layer and the reflective metal layer for improving the adhesion strength therebetween.
    Type: Application
    Filed: October 17, 2006
    Publication date: August 30, 2007
    Applicant: EPISTAR CORPORATION
    Inventors: Tzu-Chieh Hsu, Ching-San Tao, Mei-Chun Liu, Mei-Lan Wu, Chen Ou, Min-Hsun Hsieh