Patents by Inventor Tao-Chih Chang

Tao-Chih Chang 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: 20170104027
    Abstract: In an embodiment, a light emitting device comprises a light emitting diode chip and a spherical extending electrode. The light emitting diode chip includes a semiconductor epitaxial structure, a first electrode and a second electrode. The first electrode and the second electrode are disposed on two opposite sides of the semiconductor epitaxial structure, respectively. The first electrode is disposed between the semiconductor epitaxial structure and the spherical extending electrode, and the spherical extending electrode is electrically connected to the semiconductor epitaxial structure electrically through the first electrode. The volume of the spherical extending electrode is greater than that of the light emitting diode chip.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 13, 2017
    Inventors: Wei-Chung Lo, Yu-Wei Huang, Tao-Chih Chang, Chih-Ming Shen
  • Publication number: 20170084521
    Abstract: A semiconductor package structure is provided. The semiconductor package structure includes a semiconductor chip, a guard ring, a gel layer, and a first lead frame. The guard ring is disposed on the semiconductor chip, and the gel layer is disposed on the guard ring. The first lead frame is electrically connected to the semiconductor chip, and the gel layer is located between the guard ring and the first lead frame.
    Type: Application
    Filed: May 4, 2016
    Publication date: March 23, 2017
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Win-House Electronic Co.,Ltd.
    Inventors: Jing-Yao CHANG, Tao-Chih CHANG, Kuo-Shu KAO, Fang-Jun LEU, Hsin-Han LIN, Chih-Ming TZENG, Hsiao-Ming CHANG, Chih-Ming SHEN
  • Publication number: 20160211415
    Abstract: A semiconductor light emitting device including a substrate, a plurality of semiconductor light emitting units and a plurality of non-conductive walls is provided. The semiconductor light emitting device is disposed on the substrate in an array. Each of the semiconductor light emitting units has a first electrode and a second electrode opposite to the first electrode. Each of the semiconductor light emitting units is electrically connected to the substrate through the first electrode, and the semiconductor light emitting units are electrically connected together to a conducting layer through the second electrodes. The semiconductor light emitting units have different emission colors. The non-conductive walls are disposed between adjacent semiconductor light emitting units, to separate the semiconductor light emitting units. A fabricating method of semiconductor light emitting device is also provided.
    Type: Application
    Filed: November 24, 2015
    Publication date: July 21, 2016
    Inventors: Yu-Wei Huang, Tao-Chih Chang, Chih-Ming Shen
  • Publication number: 20160174360
    Abstract: A signal transmission board includes a substrate, a conductive via, a cavity and a connecting hole. The substrate has a first external surface and a second external surface. The conductive via penetrating through the substrate has a first end and a second end. The first end is disposed on the first external surface, and the second end is disposed on the second external surface. The cavity is disposed in the substrate and penetrated by the conductive via. The connecting hole disposed on the substrate has a third end and a fourth end. The third end is disposed on the first external surface, and the fourth end communicates with the cavity.
    Type: Application
    Filed: November 24, 2015
    Publication date: June 16, 2016
    Inventors: Chien-Min HSU, Shih-Hsien WU, Jing-Yao CHANG, Tao-Chih CHANG, Ren-Shin CHENG, Min-Lin LEE
  • Publication number: 20160163940
    Abstract: A package structure for a light emitting device is provided, wherein an anisotropic conductive film (ACF) and flip-chip bonding technique can be applied for bonding the light emitting device to a carrier. In addition, plural package units are stacked by performing a build-up process or a lamination process to form a full color micro-display. The package structure for the light emitting device provides simple and quick manufacturing process and is suitable for mass production. Furthermore, solutions for optical issues such as light guiding or light mixing are also provided.
    Type: Application
    Filed: November 26, 2015
    Publication date: June 9, 2016
    Inventors: Yu-Wei Huang, Tao-Chih Chang, Chih-Ming Shen
  • Patent number: 9308603
    Abstract: A solder and a solder joint structure formed by the solder are provided. The solder includes a zinc-based material, a copper film, and a noble metal film. The copper film completely covers the surface of the zinc-based material. The noble metal film completely covers the copper film. The solder joint structure includes a zinc-based material and an intermetallic layer. The intermetallic layer consists of zinc and noble metal and completely covers the surface of the zinc-based material.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: April 12, 2016
    Assignee: Industrial Technology Research Institute
    Inventors: Kuo-Shu Kao, Tao-Chih Chang, Wen-Chih Chen
  • Patent number: 9143243
    Abstract: A power module for high/low voltage insulation is provided. The power module includes a first substrate, a second substrate and an insulating substrate. The first substrate includes a first control circuit and a light source, wherein the first control circuit controls the light source to emit light. The second substrate includes a light-sensing part, a second control circuit and a power device. The light-sensing part receives the light of the light source of the first substrate to send a sensing information. The second control circuit correspondingly drives the power device in accordance with the sensing information. The insulating substrate is disposed between the first substrate and second substrate.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: September 22, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Shin-Yi Huang, Wen-Chih Chen, Tao-Chih Chang
  • Patent number: 9142473
    Abstract: The disclosure relates to a stacked type power device module. May use the vertical conductive layer for coupling the stacked devices, the electrical transmission path may be shortened. Hence, current crowding or contact damages by employing the conductive vias or wire bonding may be alleviated.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: September 22, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Yin-Po Hung, Tao-Chih Chang
  • Patent number: 9024441
    Abstract: A bump structure includes a substrate, a pad, an electrode and a protruding electrode. The pad is disposed on the substrate. The electrode is formed by a first metal material and disposed on the pad. The protruding electrode is formed by a second metal material and disposed on the electrode, wherein a cross-sectional area of the protruding electrode is less than a cross-sectional area of the electrode.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 5, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Min Lin, Chau-Jie Zhan, Tao-Chih Chang
  • Publication number: 20140374629
    Abstract: A power module for high/low voltage insulation is provided. The power module includes a first substrate, a second substrate and an insulating substrate. The first substrate includes a first control circuit and a light source, wherein the first control circuit controls the light source to emit light. The second substrate includes a light-sensing part, a second control circuit and a power device. The light-sensing part receives the light of the light source of the first substrate to send a sensing information. The second control circuit correspondingly drives the power device in accordance with the sensing information. The insulating substrate is disposed between the first substrate and second substrate.
    Type: Application
    Filed: September 5, 2013
    Publication date: December 25, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Shin-Yi Huang, Wen-Chih Chen, Tao-Chih Chang
  • Patent number: 8866309
    Abstract: A first back surface of a first chip faces toward a carrier. A first active surface of the first chip has first pads and a first insulting layer thereon. A second chip is disposed on the first chip and electrically connected to the carrier. A second active surface of the second chip faces toward the first active surface. The second active surface has second pads and a second insulting layer thereon. Bumps connect the first and second pads. First and second daisy chain circuits are respectively disposed on the first and second insulting layers. Hetero thermoelectric device pairs are disposed between the first and second chips and connected in series by the first and second daisy chain circuits, and constitute a circuit with an external device. First and second heat sinks are respectively disposed on a second surface of the carrier and a second back surface of the second chip.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: October 21, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Yao Chang, Tao-Chih Chang, Yu-Wei Huang, Yu-Min Lin, Shin-Yi Huang
  • Publication number: 20140159212
    Abstract: The disclosure relates to a stacked type power device module. May use the vertical conductive layer for coupling the stacked devices, the electrical transmission path may be shortened. Hence, current crowding or contact damages by employing the conductive vias or wire bonding may be alleviated.
    Type: Application
    Filed: March 25, 2013
    Publication date: June 12, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Yin-Po Hung, Tao-Chih Chang
  • Patent number: 8742600
    Abstract: Provided are a dual-phase intermetallic interconnection structure and a fabricating method thereof. The dual-phase intermetallic interconnection structure includes a first intermetallic compound, a second intermetallic compound, a first solder layer, and a second solder layer. The second intermetallic compound covers and surrounds the first intermetallic compound. The first intermetallic compound and the second intermetallic compound contain different high-melting point metal. The first solder layer and the second solder layer are disposed at the opposite sides of the second intermetallic compound, respectively. The first intermetallic compound is adapted to fill the micropore defects generated during the formation of the second intermetallic compound.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: June 3, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Yao Chang, Tao-Chih Chang, Tung-Han Chuang, Chun-Yen Lee
  • Publication number: 20140134459
    Abstract: A solder and a solder joint structure formed by the solder are provided. The solder includes a zinc-based material, a copper film, and a noble metal film. The copper film completely covers the surface of the zinc-based material. The noble metal film completely covers the copper film. The solder joint structure includes a zinc-based material and an intermetallic layer. The intermetallic layer consists of zinc and noble metal and completely covers the surface of the zinc-based material.
    Type: Application
    Filed: April 3, 2013
    Publication date: May 15, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Kuo-Shu Kao, Tao-Chih Chang, Wen-Chih Chen
  • Publication number: 20140097534
    Abstract: Provided are a dual-phase intermetallic interconnection structure and a fabricating method thereof. The dual-phase intermetallic interconnection structure includes a first intermetallic compound, a second intermetallic compound, a first solder layer, and a second solder layer. The second intermetallic compound covers and surrounds the first intermetallic compound. The first intermetallic compound and the second intermetallic compound contain different high-melting point metal. The first solder layer and the second solder layer are disposed at the opposite sides of the second intermetallic compound, respectively. The first intermetallic compound is adapted to fill the micropore defects generated during the formation of the second intermetallic compound.
    Type: Application
    Filed: January 8, 2013
    Publication date: April 10, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jing-Yao Chang, Tao-Chih Chang, Tung-Han Chuang, Chun-Yen Lee
  • Patent number: 8598686
    Abstract: The invention provides an electronic device package structure and method of fabrication thereof. The electronic device package structure includes a chip having an active surface and a bottom surface. A dielectric layer is disposed on the active surface of the chip. At least one trench is formed through the dielectric layer. A first protection layer covers the dielectric layer and sidewalls of the trench. A second protection layer covers the first protection layer, filling the trench.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: December 3, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Tao-Chih Chang, Su-Tsai Lu, Jing-Yao Chang, Chau-Jie Zhan
  • Patent number: 8575754
    Abstract: A dished micro-bump structure with self-aligning functions is provided. The micro-bump structure takes advantage of the central concavity for achieving the accurate alignment with the corresponding micro-bumps.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: November 5, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Tsung-Fu Tsai, Tao-Chih Chang, Chau-Jie Zhan
  • Patent number: 8502378
    Abstract: A package unit and a stacking structure thereof are provided. The package unit includes a substrate, a first patterned circuit layer, a first conductive pillar, a semiconductor element, an insulation layer, a second conductive pillar, a third conductive pillar, a second patterned circuit layer and a conductive bump. The first patterned circuit layer is disposed on a surface of the substrate. The first conductive pillar is deposited through the substrate. The semiconductor element is disposed on the substrate. The insulation layer covers the semiconductor element and the substrate. The second conductive pillar is deposited through the insulation layer. The third conductive pillar is deposited through the insulation layer. The second patterned circuit layer is disposed on the insulation layer. The conductive bump is disposed on the second patterned metal layer.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: August 6, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Yin-Po Hung, Tao-Chih Chang
  • Publication number: 20130168851
    Abstract: A bump structure includes a substrate, a pad, an electrode and a protruding electrode. The pad is disposed on the substrate. The electrode is formed by a first metal material and disposed on the pad. The protruding electrode is formed by a second metal material and disposed on the electrode, wherein a cross-sectional area of the protruding electrode is less than a cross-sectional area of the electrode.
    Type: Application
    Filed: May 31, 2012
    Publication date: July 4, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Min Lin, Chau-Jie Zhan, Tao-Chih Chang
  • Publication number: 20130043599
    Abstract: Chip package processes and chip package structures are provided. The chip package structure includes a substrate, a chip, an insulating layer, a third patterned conductive layer and an electronic element. The substrate has a first patterned conductive layer. The chip is disposed on the substrate. A second patterned conductive layer of the chip is bonded to the first patterned conductive layer of the substrate. The chip has a first through hole. The insulating layer is disposed on the chip and filled into the first through hole. The insulating layer has a second through hole which passes through the first through hole. The third patterned conductive layer is disposed on the insulating layer and filled into the second through hole to electrically connect to the first patterned conductive layer. The electronic element is disposed on the third patterned conductive layer and electrically connects to the third patterned conductive layer.
    Type: Application
    Filed: January 5, 2012
    Publication date: February 21, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Wei Huang, Yin-Po Hung, Tao-Chih Chang, Jing-Yao Chang, Shin-Yi Huang, Ren-Shin Cheng