Patents by Inventor Chia-Ming Lee

Chia-Ming Lee 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: 20110006307
    Abstract: A group III-nitride semiconductor Schottky diode comprises a conducting substrate having a first surface, a stack of multiple layers including a buffer layer and a semiconductor layer sequentially formed on the first surface, wherein the semiconductor layer comprises a group III nitride compound, a first electrode on the semiconductor layer, and a second electrode formed in contact with the first surface at a position adjacent to the stack of multiple layers. In other embodiments, the application also describes a method of fabricating the group III-nitride semiconductor Schottky diode.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 13, 2011
    Applicant: TEKCORE CO., LTD.
    Inventors: Guan-Ting CHEN, Chia-Ming LEE
  • Publication number: 20100295017
    Abstract: The present invention discloses a light emitting diode (LED) element and a method for fabricating the same, which can promote light extraction efficiency of LED, wherein a substrate is etched to obtain basins with inclined natural crystal planes, and an LED epitaxial structure is selectively formed inside the basin. Thereby, an LED element having several inclines is obtained. Via the inclines, the probability of total internal reflection is reduced, and the light extraction efficiency of LED is promoted.
    Type: Application
    Filed: August 6, 2010
    Publication date: November 25, 2010
    Inventors: Hung-Cheng LIN, Chia-Ming Lee, Jen-Inn Chyi
  • Patent number: 7799593
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer. Next, the substrate is etched to form a plurality of concave zones and a plurality of convex zones with the chemical reaction layer overhead. Next, the chemical reaction layer is removed to form an irregular geometry of the concave zones and convex zones on the surface of the substrate. Then, a semiconductor light emitting structure is epitaxially formed on the surface of the substrate. Thereby, the present invention can achieve a light emitting diode structure having improved internal and external quantum efficiencies.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: September 21, 2010
    Assignee: Tekcore Co., Ltd.
    Inventors: Chia-Ming Lee, Hung-Cheng Lin, Jen-Inn Chyi
  • Publication number: 20100140653
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer on carved regions; the carved region is selectively etched to form a plurality of concave zones and form a plurality of convex zones; a semiconductor layer structure is epitaxially grown on the element regions and carved regions of the substrate; the semiconductor layer structure on the element regions is fabricated into a LED element with a photolithographic process.
    Type: Application
    Filed: February 19, 2010
    Publication date: June 10, 2010
    Inventors: Hung-Cheng LIN, Chia-Ming LEE, Jen-Inn CHYI
  • Patent number: 7713769
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer on carved regions; the carved region is selectively etched to form a plurality of concave zones and form a plurality of convex zones; a semiconductor layer structure is epitaxially grown on the element regions and carved regions of the substrate; the semiconductor layer structure on the element regions is fabricated into a LED element with a photolithographic process.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: May 11, 2010
    Assignee: Tekcore Co., Ltd.
    Inventors: Hung-Cheng Lin, Chia-Ming Lee, Jen-Inn Chyi
  • Patent number: 7679919
    Abstract: A heat sink and an electronic apparatus using the same are disclosed. The heat sink comprises a fin structure and a fastening assembly; the fastening assembly comprises an adjustable positioning member, an elastic member, and a hooking member, the elastic member being disposed between the hooking member and the fin structure such that the adjustable positioning member combines the hooking member, the elastic member, and the fin structure; wherein the hooking member may secure the heat sink onto an electronic component, and the adjustable positioning member may be used to adjust the tightness between the heat sink and the electronic component.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 16, 2010
    Assignee: Wistron Corporation
    Inventor: Chia-Ming Lee
  • 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
  • Publication number: 20090294756
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer. Next, the substrate is etched to form a plurality of concave zones and a plurality of convex zones with the chemical reaction layer overhead. Next, the chemical reaction layer is removed to form an irregular geometry of the concave zones and convex zones on the surface of the substrate. Then, a semiconductor light emitting structure is epitaxially formed on the surface of the substrate. Thereby, the present invention can achieve a light emitting diode structure having improved internal and external quantum efficiencies.
    Type: Application
    Filed: August 10, 2009
    Publication date: December 3, 2009
    Inventors: Chia-Ming Lee, Hung-Cheng Lin, Jen-Inn Chyi
  • Publication number: 20090298213
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer. Next, the substrate is etched to form a plurality of concave zones and a plurality of convex zones with the chemical reaction layer overhead. Next, the chemical reaction layer is removed to form an irregular geometry of the concave zones and convex zones on the surface of the substrate. Then, a semiconductor light emitting structure is epitaxially formed on the surface of the substrate. Thereby, the present invention can achieve a light emitting diode structure having improved internal and external quantum efficiencies.
    Type: Application
    Filed: August 10, 2009
    Publication date: December 3, 2009
    Inventors: Chia-Ming LEE, Hung-Cheng Lin, Jen-Inn Chyi
  • Patent number: 7598105
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer. Next, the substrate is etched to form a plurality of concave zones and a plurality of convex zones with the chemical reaction layer overhead. Next, the chemical reaction layer is removed to form an irregular geometry of the concave zones and convex zones on the surface of the substrate. Then, a semiconductor light emitting structure is epitaxially formed on the surface of the substrate. Thereby, the present invention can achieve a light emitting diode structure having improved internal and external quantum efficiencies.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: October 6, 2009
    Assignee: Tekcore Co., Ltd.
    Inventors: Chia-Ming Lee, Hung-Cheng Lin, Jen-Inn Chyi
  • Patent number: 7580086
    Abstract: A display module is provided. The display module comprises a display panel, a printed circuit board, and a flexible packaging unit. The display panel has a plurality of first signal pads and at least one first dummy pad. The printed circuit board has a plurality of second signal pads and at least one second dummy pad. In addition, the flexible packaging unit comprises a flexible carrier and a chip, wherein the flexible carrier has a plurality of signal lines and at least one electrostatic discharge protective line. The electrostatic discharge protective line is connected between the first dummy pad and the second dummy pad. Furthermore, the electrostatic discharge protective line has an electricity conducting pad, which is exposed on the surface of the flexible carrier. The chip is disposed on the flexible carrier and connected to the display panel and the printed circuit board through the signal lines.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: August 25, 2009
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chia-Ming Lee, Chun-Han Liu
  • Publication number: 20090186435
    Abstract: The present invention discloses a surface roughening method for an LED substrate, which uses a grinding technology and an abrasive paper of from No. 300 to No. 6000 to grind the surface of a substrate to form a plurality of irregular concave zones and convex zones on the surface of the substrate. Next, a semiconductor light emitting structure is formed on the surface of the substrate. The concave zones and convex zones can scatter and diffract the light inside LED, reduce the horizontally-propagating light between the substrate and the semiconductor layer, decrease the probability of total reflection and promote LED light extraction efficiency.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 23, 2009
    Inventors: Nien-Tze Yeh, Chia-Ming Lee
  • Publication number: 20090159910
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer on carved regions; the carved region is selectively etched to form a plurality of concave zones and form a plurality of convex zones; a semiconductor layer structure is epitaxially grown on the element regions and carved regions of the substrate; the semiconductor layer structure on the element regions is fabricated into a LED element with a photolithographic process.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Hung-Cheng LIN, Chia-Ming Lee, Jen-Inn Chyi
  • Publication number: 20090159870
    Abstract: The present invention discloses a light emitting diode (LED) element and a method for fabricating the same, which can promote light extraction efficiency of LED, wherein a substrate is etched to obtain basins with inclined natural crystal planes, and an LED epitaxial structure is selectively formed inside the basin. Thereby, an LED element having several inclines is obtained. Via the inclines, the probability of total internal reflection is reduced, and the light extraction efficiency of LED is promoted.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 25, 2009
    Inventors: Hung-Cheng Lin, Chia-Ming Lee, Jen-Inn Chyi
  • Publication number: 20090159871
    Abstract: The present invention discloses a light emitting diode structure and a method for fabricating the same. In the present invention, a substrate is placed in a solution to form a chemical reaction layer. Next, the substrate is etched to form a plurality of concave zones and a plurality of convex zones with the chemical reaction layer overhead. Next, the chemical reaction layer is removed to form an irregular geometry of the concave zones and convex zones on the surface of the substrate. Then, a semiconductor light emitting structure is epitaxially formed on the surface of the substrate. Thereby, the present invention can achieve a light emitting diode structure having improved internal and external quantum efficiencies.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Chia-Ming LEE, Hung-Cheng Lin, Jen-Inn Chyi
  • Publication number: 20090147480
    Abstract: A heat sink and an electronic apparatus using the same are disclosed. The heat sink comprises a fin structure and a fastening assembly; the fastening assembly comprises an adjustable positioning member, an elastic member, and a hooking member, the elastic member being disposed between the hooking member and the fin structure such that the adjustable positioning member combines the hooking member, the elastic member, and the fin structure; wherein the hooking member may secure the heat sink onto an electronic component, and the adjustable positioning member may be used to adjust the tightness between the heat sink and the electronic component.
    Type: Application
    Filed: June 27, 2008
    Publication date: June 11, 2009
    Applicant: Wistron Corporation
    Inventor: Chia-Ming Lee
  • 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: 7462505
    Abstract: In a method of forming a crystalline GaN-based material, a first nucleation layer is formed on a substrate at a first temperature, followed with forming a second nucleation layer at a second temperature different from the first temperature. The first and second nucleation layers are composed of AlxInyGa(1-x-y)N. Subsequently, a layer of a crystalline GaN-based compound is epitaxy grown on the second nucleation layer.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: December 9, 2008
    Assignee: Tekcore Co., Ltd.
    Inventors: Chia Ming Lee, Tsung Liang Cheng, I Ling Chen, Yu Chuan Liu, Jen Inn Chyi
  • Publication number: 20080296601
    Abstract: A light-emitting diode includes an optical layer formed in an array of substantially equidistant light extracting spots integrated to its multi-layered structure. The array of light extracting spots includes a distribution of juxtaposed hexagon patterns. The layer thickness of the light extracting spots is less than 800 ?.
    Type: Application
    Filed: July 28, 2008
    Publication date: December 4, 2008
    Inventors: Jen-Inn CHYI, Chia-Ming Lee, Jui-Cheng Chang, Tsung-Liang Chen, Shih-Ling Chen
  • Patent number: 7335523
    Abstract: A light-emitting device comprising a light-emitting unit including a plurality of first connecting pads, a base substrate including a plurality of second connecting pads, and a plurality of conductive bumps that connect the first connecting pads of the light-emitting unit to the second connecting pads of the base substrate. In the manufacturing process, a reflow process is performed to bond the conductive bumps to the first and second connecting pads. The light-emitting unit is configured to emit a first light radiation upon the application of an electric current flow, and the base substrate is configured to emit a second light radiation when stimulated by the first light radiation.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: February 26, 2008
    Assignee: Tekcore Co., Ltd.
    Inventors: Yu-Chuan Liu, Chia-Ming Lee, I-Ling Chen, Jen-Inn Chyi