Patents by Inventor Liqin ZHU

Liqin ZHU 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: 20250160061
    Abstract: A light-emitting diode includes an epitaxial layered structure and a conductive mirror structure which includes a first electrically conductive layer and a second electrically conductive layer disposed on the epitaxial layered structure in such order. The first and second electrically conductive layers respectively have a first reflectance R1 and a second reflectance R2 to light emitted from the epitaxial layered structure, and R1<R2.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 15, 2025
    Inventors: Guitian GUO, Liqin ZHU, Linrong CAI, Lixun YANG
  • Patent number: 12211953
    Abstract: A light-emitting diode includes an epitaxial layered structure and a conductive mirror structure which includes a first electrically conductive layer and a second electrically conductive layer disposed on the epitaxial layered structure in such order. The first and second electrically conductive layers respectively have a first reflectance R1 and a second reflectance R2 to light emitted from the epitaxial layered structure, and R1<R2.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: January 28, 2025
    Assignee: QUANZHOU SAN'AN SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventors: Guitian Guo, Liqin Zhu, Linrong Cai, Lixun Yang
  • Patent number: 12206047
    Abstract: A light-emitting diode (LED) chip includes a substrate and an epitaxial structure. The epitaxial structure includes a first semiconductor layer, an active layer and a second semiconductor layer that are sequentially disposed on the substrate in such order. The second semiconductor layer has a light-emitting surface that is opposite to the active layer and that is formed with a microstructure. The microstructure includes a plurality of first protrusions that are separately disposed on the light-emitting surface, and a plurality of second protrusions that are disposed on the first protrusions and on the light-emitting surface between any two adjacent ones of the first protrusions.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 21, 2025
    Assignee: Xiamen Sanan Optoelectronics Technology Co., Ltd.
    Inventors: Poyang Chang, Linrong Cai, Shao-Hua Huang, Liqin Zhu, Shuangliang Liu
  • Publication number: 20240250229
    Abstract: A semiconductor light-emitting device includes a substrate, a connection structure disposed on the substrate, a semiconductor light-emitting unit disposed on the connection structure, and first and second electrodes. The connection structure includes an insulating layer formed with a through hole, a first electrically connecting layer disposed on the insulating layer and electrically connected to the first electrode, and a second electrically connecting layer disposed between the substrate and the insulating layer and extending through the through hole to be electrically connected to the second electrode. A projection of the second electrode on the insulating layer covers a portion of the insulating layer.
    Type: Application
    Filed: February 23, 2024
    Publication date: July 25, 2024
    Inventors: Liqin ZHU, Daquan LIN, Lixun YANG, Cheng YU
  • Patent number: 11923490
    Abstract: A semiconductor light-emitting device includes a substrate, a connection structure disposed on the substrate, a semiconductor light-emitting unit disposed on the connection structure, and first and second electrodes. The connection structure includes an insulating layer formed with a through hole, a first electrically connecting layer disposed on the insulating layer and electrically connected to the first electrode, and a second electrically connecting layer disposed between the substrate and the insulating layer and extending through the through hole to be electrically connected to the second electrode. A projection of the second electrode on the insulating layer covers a portion of the insulating layer.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: March 5, 2024
    Assignee: QUANZHOU SAN'AN SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventors: Liqin Zhu, Daquan Lin, Lixun Yang, Cheng Yu
  • Publication number: 20220392949
    Abstract: A light-emitting diode device includes a substrate and at least one mesa structure disposed on the substrate. The substrate includes at least one light-emitting region-forming area and at least one dicing region-forming area that are spaced apart from each other. The at least one dicing region-forming area surrounds the at least one light-emitting region-forming area. The at least one mesa structure includes a light-emitting mesa disposed on the at least one light-emitting region-forming area, and a dicing mesa disposed on the at least one dicing region-forming area and surrounding the light-emitting mesa. A method for making the light-emitting diode device is also provided herein.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Linrong CAI, Lixun YANG, Hsin-Yi TSENG, Liqin ZHU
  • Publication number: 20220278252
    Abstract: A light-emitting diode (LED) chip includes a substrate and an epitaxial structure. The epitaxial structure includes a first semiconductor layer, an active layer and a second semiconductor layer that are sequentially disposed on the substrate in such order. The second semiconductor layer has a light-emitting surface that is opposite to the active layer and that is formed with a microstructure. The microstructure includes a plurality of first protrusions that are separately disposed on the light-emitting surface, and a plurality of second protrusions that are disposed on the first protrusions and on the light-emitting surface between any two adjacent ones of the first protrusions.
    Type: Application
    Filed: February 22, 2022
    Publication date: September 1, 2022
    Inventors: Poyang CHANG, Linrong CAI, Shao-Hua HUANG, Liqin ZHU, Shuangliang LIU
  • Publication number: 20210167265
    Abstract: A semiconductor light-emitting device includes a substrate, a connection structure disposed on the substrate, a semiconductor light-emitting unit disposed on the connection structure, and first and second electrodes. The connection structure includes an insulating layer formed with a through hole, a first electrically connecting layer disposed on the insulating layer and electrically connected to the first electrode, and a second electrically connecting layer disposed between the substrate and the insulating layer and extending through the through hole to be electrically connected to the second electrode. A projection of the second electrode on the insulating layer covers a portion of the insulating layer.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 3, 2021
    Inventors: Liqin ZHU, Daquan LIN, Lixun YANG, Cheng YU
  • Publication number: 20210135053
    Abstract: A light-emitting diode includes an epitaxial layered structure and a conductive mirror structure which includes a first electrically conductive layer and a second electrically conductive layer disposed on the epitaxial layered structure in such order. The first and second electrically conductive layers respectively have a first reflectance R1 and a second reflectance R2 to light emitted from the epitaxial layered structure, and R1<R2.
    Type: Application
    Filed: December 10, 2020
    Publication date: May 6, 2021
    Applicant: XIAMEN SAN'AN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Guitian GUO, Liqin ZHU, Linrong CAI, Lixun YANG