Patents by Inventor Yao-Jun Tsai

Yao-Jun Tsai 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: 20110133229
    Abstract: A light emitting diode (LED) structure and a LED packaging structure are disclosed. The LED structure includes a sub-mount, a stacked structure, an electrode, an isolation layer and a conductive thin film layer. The sub-mount has a first surface and a second surface opposite the first surface. The stacked structure has a first semiconductor layer, an active layer and a second semiconductor layer that are laminated on the first surface. The electrode is disposed apart from the stacked structure on the first surface. The isolation layer is disposed on the first surface to surround the stacked structure as well as cover the lateral sides of the active layer. The conductive thin film layer connects the electrode to the stacked structure and covers the stacked structure.
    Type: Application
    Filed: December 29, 2010
    Publication date: June 9, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jun Tsai, Chen-Peng Hsu, Hung-Lieh Hu, Ji-Feng Chen
  • Publication number: 20110092002
    Abstract: The present invention discloses a method for fabricating a light emitting diode (LED) package structure. The method comprises the following steps: a carrier having a substrate and a first protrusion is provided, wherein the first protrusion is disposed on the substrate and has a recess. An adhesion layer and a LED chip are disposed on a bottom of the recess, wherein the adhesion layer is bonded between the carrier and the LED chip, and a ratio between a width of the recess and a width of the LED chip is larger than 1 and smaller than or equal to 1.5 such that a gap existing between a sidewall of the LED chip and an inner sidewall of the recess.
    Type: Application
    Filed: December 22, 2010
    Publication date: April 21, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jun Tsai, Chen-Peng Hsu, Chao-Wei Li, Hung-Lieh Hu
  • Patent number: 7923746
    Abstract: The present invention discloses a light emitting diode (LED) package structure, which includes a carrier, a first protrusion, a LED chip, and an adhesion layer. The first protrusion is disposed on the carrier and has a first opening to expose the carrier, wherein the first protrusion is formed by a thermal conductive material. The LED chip is disposed in the first opening on the carrier, and a ratio between a width of the first opening and a width of the LED chip is 1˜1.5. The adhesion layer is disposed between the LED chip and the carrier to bond the LED chip to the carrier.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: April 12, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Yao-Jun Tsai, Chen-Peng Hsu, Chao-Wei Li, Hung-Lieh Hu
  • Patent number: 7883910
    Abstract: A light emitting diode (LED) structure, a LED packaging structure, and a method of forming LED structure are disclosed. The LED structure includes a sub-mount, a stacked structure, an electrode, an isolation layer and a conductive thin film layer. The sub-mount has a first surface and a second surface opposite the first surface. The stacked structure has a first semiconductor layer, an active layer and a second semiconductor layer that are laminated on the first surface. The electrode is disposed apart from the stacked structure on the first surface. The isolation layer is disposed on the first surface to surround the stacked structure as well as cover the lateral sides of the active layer. The conductive thin film layer connects the electrode to the stacked structure and covers the stacked structure.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: February 8, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Yao-Jun Tsai, Chen-Peng Hsu, Hung-Lieh Hu, Ji-Feng Chen
  • Publication number: 20100213479
    Abstract: A light-emitting diode (LED) package structure including a carrier substrate, at least one LED chip, an optical element and a highly thermal-conductive transparent liquid is provided. The LED chip is disposed on the carrier substrate and has an active layer. The optical element is disposed on the substrate and forms a sealed space with the carrier substrate, and the LED chip is disposed in the sealed space. The highly thermal-conductive transparent liquid fills up the sealed space.
    Type: Application
    Filed: October 8, 2009
    Publication date: August 26, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chao-Wei Li, Chen-Peng Hsu, Yao-Jun Tsai, Hung-Lieh Hu
  • Publication number: 20100193809
    Abstract: A light emitting diode (LED) structure, a LED packaging structure, and a method of forming LED structure are disclosed. The LED structure includes a sub-mount, a stacked structure, an electrode, an isolation layer and a conductive thin film layer. The sub-mount has a first surface and a second surface opposite the first surface. The stacked structure has a first semiconductor layer, an active layer and a second semiconductor layer that are laminated on the first surface. The electrode is disposed apart from the stacked structure on the first surface. The isolation layer is disposed on the first surface to surround the stacked structure as well as cover the lateral sides of the active layer. The conductive thin film layer connects the electrode to the stacked structure and covers the stacked structure.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 5, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jun Tsai, Chen-Peng Hsu, Hung-Lieh Hu, Ji-Feng Chen
  • Publication number: 20100072487
    Abstract: A light emitting diode (LED), a fabricating method thereof, and a package structure thereof are provided. The LED includes a substrate, a first semiconductor layer disposed on the substrate, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, a current distribution modifying pattern, a first electrode and a second electrode. The active layer and the second semiconductor layer form a mesa structure and expose a part of the first semiconductor layer. The current distribution modifying pattern is disposed on the second semiconductor layer. The first electrode is disposed on and electrically connected to the first semiconductor layer exposed by the mesa structure. The second electrode is disposed on the current distribution modifying pattern and is electrically connected to the second semiconductor layer. The LED has superior light emitting efficiency.
    Type: Application
    Filed: April 7, 2009
    Publication date: March 25, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jun Tsai, Jinn-Kong Sheu, Hsi-Hsuan Yen, Hung-Lieh Hu
  • Publication number: 20090267102
    Abstract: A light emitting diode (LED) package structure includes a carrier, a first protrusion, a LED chip, and an adhesion layer. The first protrusion is disposed on the carrier and has a first opening to expose the carrier. The LED chip is disposed in the first opening on the carrier, and a ratio between a width of the first opening and a width of the LED chip is 1˜1.5. The adhesion layer is disposed between the LED chip and the carrier to bond the LED chip to the carrier.
    Type: Application
    Filed: July 13, 2009
    Publication date: October 29, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jun Tsai, Chen-Peng Hsu, Chao-Wei Li, Hung-Lieh Hu
  • Publication number: 20090230417
    Abstract: The present invention discloses a light emitting diode (LED) package structure, which includes a carrier, a first protrusion, a LED chip, and an adhesion layer. The first protrusion is disposed on the carrier and has a first opening to expose the carrier, wherein the first protrusion is formed by a thermal conductive material. The LED chip is disposed in the first opening on the carrier, and a ratio between a width of the first opening and a width of the LED chip is 1˜1.5. The adhesion layer is disposed between the LED chip and the carrier to bond the LED chip to the carrier.
    Type: Application
    Filed: May 26, 2008
    Publication date: September 17, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jun Tsai, Chen-Peng Hsu, Chao-Wei Li, Hung-Lieh Hu