Patents by Inventor Kai-Wei LO

Kai-Wei LO 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: 20240131819
    Abstract: A thermally conductive board includes a first metal layer, a second metal layer, and a thermally conductive layer. The material of the first metal layer includes copper, and the first metal layer has a first top surface and a first bottom surface opposite to the first top surface. A first metal coating layer covers the first bottom surface. The material of the second metal layer includes copper, and the second metal layer has a second top surface and a second bottom surface opposite to the second top surface. A second metal coating layer covers the second top surface and faces the first metal coating layer. The thermally conductive layer is an electrically insulator laminated between the first metal coating layer and the second metal coating layer.
    Type: Application
    Filed: May 3, 2023
    Publication date: April 25, 2024
    Inventors: KAI-WEI LO, WEN-FENG LEE, HSIANG-YUN YANG, KUO-HSUN CHEN
  • Patent number: 11778739
    Abstract: A thermally conductive board includes a metal substrate, a metal layer, a thermal conductive insulating polymer layer, and a ceramic material layer. The thermal conductive insulating polymer layer is located between the metal layer and the metal substrate. The ceramic material layer includes an upper ceramic layer or a lower ceramic layer, or includes both the upper ceramic layer and the lower ceramic layer. The upper ceramic layer is disposed between the metal layer and the thermal conductive insulating polymer layer, and the lower ceramic layer is disposed between the thermal conductive insulating polymer layer and the metal substrate.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: October 3, 2023
    Assignee: POLYTRONICS TECHNOLOGY CORP.
    Inventors: Kuo Hsun Chen, Cheng Tsung Yang, Feng-Chun Yu, Kai-Wei Lo
  • Publication number: 20230249438
    Abstract: A metal clad substrate is disclosed. The metal clad substrate includes a metal baseplate, a metal layer, and a thermally conductive bonding layer disposed therebetween. The thermally conductive bonding layer includes a lower adhesive layer, a fiber-containing layer, and an upper adhesive layer. An upper side and a lower side of the upper adhesive layer contacts the metal layer and the fiber-containing layer, respectively. An upper side and a lower side of the lower adhesive layer contacts the fiber-containing layer and the metal baseplate, respectively. Each of the metal layer and the metal baseplate has a thickness of 0.3 mm - 15 mm. The fiber-containing layer includes a polymer as well as a heat conductive filler and a short fiber evenly dispersed in the polymer. The short fiber is in shape of a string and has a length of 5 µm-210 µm.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 10, 2023
    Inventors: KAI-WEI LO, KUO-HSUN CHEN, HSIANG-YUN YANG, CHAO-JEN WANG
  • Patent number: 11511521
    Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: November 29, 2022
    Assignee: POLYTRONICS TECHNOLOGY CORP.
    Inventors: Feng-Chun Yu, Kai-Wei Lo, Wen Feng Lee, Ru-Yi Cai
  • Publication number: 20220266572
    Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.
    Type: Application
    Filed: October 28, 2021
    Publication date: August 25, 2022
    Inventors: Feng-Chun YU, Kai-Wei LO, Wen Feng LEE, Ru-Yi CAI
  • Publication number: 20220270950
    Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 25, 2022
    Inventors: Feng-Chun YU, Kai-Wei LO, Wen Feng LEE, Ru-Yi CAI
  • Publication number: 20220201856
    Abstract: A thermally conductive board includes a metal substrate, a metal layer, a thermal conductive insulating polymer layer, and a ceramic material layer. The thermal conductive insulating polymer layer is located between the metal layer and the metal substrate. The ceramic material layer includes an upper ceramic layer or a lower ceramic layer, or includes both the upper ceramic layer and the lower ceramic layer. The upper ceramic layer is disposed between the metal layer and the thermal conductive insulating polymer layer, and the lower ceramic layer is disposed between the thermal conductive insulating polymer layer and the metal substrate.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 23, 2022
    Inventors: KUO HSUN CHEN, Cheng Tsung Yang, Feng-Chun Yu, KAI-WEI LO
  • Patent number: 11044817
    Abstract: A thermally conductive board comprises a metal substrate, a foil containing copper, a thermally conductive and insulating layer and a barrier layer. The thermally conductive and electrically insulating layer is disposed on the metal substrate. The barrier layer is laminated between the foil containing copper and the thermally conductive and electrically insulating layer. The barrier is in direct contact with the foil containing copper, and the interface between the barrier layer and the foil containing copper comprises a microrough surface. The barrier layer has a Redox potential between 0 and ?1V. The microrough surface has a roughness Rz of 2-18 ?m.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: June 22, 2021
    Assignee: POLYTRONICS TECHNOLOGY CORP.
    Inventors: Kuo-Hsun Chen, Chia-Hsiung Wu, Kai-Wei Lo, Yu-Hsuan Tseng
  • Publication number: 20210059056
    Abstract: A thermally conductive board comprises a metal substrate, a foil containing copper, a thermally conductive and insulating layer and a barrier layer. The thermally conductive and electrically insulating layer is disposed on the metal substrate. The barrier layer is laminated between the foil containing copper and the thermally conductive and electrically insulating layer. The barrier is in direct contact with the foil containing copper, and the interface between the barrier layer and the foil containing copper comprises a microrough surface. The barrier layer has a Redox potential between 0 and ?1V. The microrough surface has a roughness Rz of 2-18 ?m.
    Type: Application
    Filed: April 9, 2020
    Publication date: February 25, 2021
    Inventors: Kuo-Hsun CHEN, Chia-Hsiung Wu, Kai-Wei LO, Yu-Hsuan Tseng