Patents by Inventor Pei-Chi CHIANG

Pei-Chi CHIANG 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).

  • Light-emitting device and manufacturing method thereof
    Patent number: 12237437
    Abstract: A light-emitting package, includes: a housing including an opening; a lead frame covered by the housing; a light-emitting device, mounted in the opening and electrically connected to the lead frame, the light-emitting device including: a substrate including: a base with a main surface; and a plurality of protrusions on the main surface, wherein the protrusion and the base include different materials; a semiconductor stack on the main surface, the semiconductor stack including a side wall, and wherein an included angle between the side wall and the main surface is an obtuse angle; wherein the main surface includes a peripheral area not covered by the semiconductor stack, and the peripheral area is devoid of the protrusion formed thereon; and a filling material filling in the opening and covering the light-emitting device.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: February 25, 2025
    Assignee: EPISTAR CORPORATION
    Inventors: Li-Ming Chang, Tzung-Shiun Yeh, Chien-Fu Shen, Wen-Hsiang Lin, Pei-Chi Chiang, Yi-Wen Ku
  • LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20220173272
    Abstract: A light-emitting package, includes: a housing including an opening; a lead frame covered by the housing; a light-emitting device, mounted in the opening and electrically connected to the lead frame, the light-emitting device including: a substrate including: a base with a main surface; and a plurality of protrusions on the main surface, wherein the protrusion and the base include different materials; a semiconductor stack on the main surface, the semiconductor stack including a side wall, and wherein an included angle between the side wall and the main surface is an obtuse angle; wherein the main surface includes a peripheral area not covered by the semiconductor stack, and the peripheral area is devoid of the protrusion formed thereon; and a filling material filling in the opening and covering the light-emitting device.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 2, 2022
    Inventors: Li-Ming CHANG, Tzung-Shiun YEH, Chien-Fu SHEN, Wen-Hsiang LIN, Pei-Chi CHIANG, Yi-Wen KU
  • Light-emitting device and manufacturing method thereof
    Patent number: 11282982
    Abstract: A light-emitting device, includes: a substrate, including a base with a main surface; and a plurality of protrusions on the main surface, wherein the protrusion and the base include different materials; and a semiconductor stack on the main surface, including a side wall, and wherein an included angle between the side wall and the main surface is an obtuse angle; wherein the main surface includes a peripheral area surrounding the semiconductor stack, and the peripheral area is devoid of the protrusion formed thereon.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: March 22, 2022
    Assignee: EPISTAR CORPORATION
    Inventors: Li-Ming Chang, Tzung-Shiun Yeh, Chien-Fu Shen, Wen-Hsiang Lin, Pei-Chi Chiang, Yi-Wen Ku
  • LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20200243714
    Abstract: A light-emitting device, includes: a substrate, including a base with a main surface; and a plurality of protrusions on the main surface, wherein the protrusion and the base include different materials; and a semiconductor stack on the main surface, including a side wall, and wherein an included angle between the side wall and the main surface is an obtuse angle; wherein the main surface includes a peripheral area surrounding the semiconductor stack, and the peripheral area is devoid of the protrusion formed thereon.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 30, 2020
    Inventors: Li-Ming CHANG, Tzung-Shiun YEH, Chien-Fu SHEN, Wen-Hsiang LIN, Pei-Chi CHIANG, Yi-Wen KU