Patents by Inventor Chuanfang Chin

Chuanfang Chin 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).

  • Patent number: 11139287
    Abstract: A transient voltage suppression (TVS) device including a TVS diode having a first electrode and a second electrode, an insulating plate disposed on the first electrode, a first terminal lead connected to the insulating plate, a second terminal lead connected to the second electrode, and an thermal cutoff element connecting the first terminal lead to the first electrode, the thermal cutoff element configured to melt and break an electrical connection between the first terminal lead and the first electrode when a temperature of the TVS diode exceeds a predetermined safety temperature.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: October 5, 2021
    Assignee: Littefluse Semiconductor (WUXI) Co., Ltd.
    Inventors: Chuanfang Chin, Kueir-Liang Lu, Lei Shi, Tsungwen Mou
  • Publication number: 20200321327
    Abstract: A transient voltage suppression (TVS) device including a TVS diode having a first electrode and a second electrode, an insulating plate disposed on the first electrode, a first terminal lead connected to the insulating plate, a second terminal lead connected to the second electrode, and an thermal cutoff element connecting the first terminal lead to the first electrode, the thermal cutoff element configured to melt and break an electrical connection between the first terminal lead and the first electrode when a temperature of the TVS diode exceeds a predetermined safety temperature.
    Type: Application
    Filed: May 23, 2016
    Publication date: October 8, 2020
    Inventors: Chuanfang CHIN, Kueir-Liang LU, Lei SHI, Tsungwen MOU
  • Patent number: 10714241
    Abstract: In one embodiment, an overvoltage protection device may include a metal oxide varistor (MOV) having a first surface and a second surface; a semiconductor substrate having a first outer surface and a second outer surface and comprising a semiconductor crowbar device comprising a plurality of semiconductor layers arranged in electrical series to one another, the semiconductor substrate being disposed on a first side of the metal oxide varistor; a conductive region disposed between the second surface of the MOV and the first outer surface of the semiconductor substrate; a first electrical contact disposed on the first surface of the MOV; and a second electrical contact disposed on the second outer surface of the semiconductor substrate.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 14, 2020
    Assignee: LITTELFUSE SEMICONDUCTOR (WUXI) CO., LTD.
    Inventors: Teddy C. T. To, ChuanFang Chin, Yaosheng Du
  • Patent number: 10714240
    Abstract: An overvoltage protection device (100) may include a metal oxide varistor (MOV) (102) having a first surface (114) and a second surface (116); a semiconductor substrate (202) having a first outer surface (126) and a second outer surface (128) and comprising a semiconductor crowbar device (104) comprising a plurality of semiconductor layers arranged in electrical series to one another, the semiconductor substrate (202) being disposed on a first side of the metal oxide varistor (102), a conductive region (124) disposed between the second surface (116) of the MOV (102) and the first outer surface (126) of the semiconductor substrate (202); a first electrical contact (120) disposed on the first surface (114) of the MOV (102); and a second electrical contact (122) disposed on the second outer surface (128) of the semiconductor substrate (202).
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: July 14, 2020
    Assignee: Littlefuse Semiconductor (Wuxi) Co., Ltd.
    Inventors: Teddy C. T. To, Chuanfang Chin, Yaosheng Du
  • Publication number: 20200135367
    Abstract: In one embodiment, an overvoltage protection device may include a metal oxide varistor (MOV) having a first surface and a second surface; a semiconductor substrate having a first outer surface and a second outer surface and comprising a semiconductor crowbar device comprising a plurality of semiconductor layers arranged in electrical series to one another, the semiconductor substrate being disposed on a first side of the metal oxide varistor; a conductive region disposed between the second surface of the MOV and the first outer surface of the semiconductor substrate; a first electrical contact disposed on the first surface of the MOV; and a second electrical contact disposed on the second outer surface of the semiconductor substrate.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 30, 2020
    Applicant: Littelfuse Semiconductor (Wuxi) Co., Ltd.
    Inventors: Teddy C.T. To, ChuanFang Chin, Yaosheng Du
  • Publication number: 20180240575
    Abstract: An overvoltage protection device (100) may include a metal oxide varistor (MOV) (102) having a first surface (114) and a second surface (116); a semiconductor substrate (202) having a first outer surface (126) and a second outer surface (128) and comprising a semiconductor crowbar device (104) comprising a plurality of semiconductor layers arranged in electrical series to one another, the semiconductor substrate (202) being disposed on a first side of the metal oxide varistor (102), a conductive region (124) disposed between the second surface (116) of the MOV (102) and the first outer surface (126) of the semiconductor substrate (202); a first electrical contact (120) disposed on the first surface (114) of the MOV (102); and a second electrical contact (122) disposed on the second outer surface (128) of the semiconductor substrate (202).
    Type: Application
    Filed: August 13, 2015
    Publication date: August 23, 2018
    Applicant: Littelfuse Semiconductor (Wuxi) Co., Ltd
    Inventors: Teddy C. T. To, Chuanfang Chin, Yaosheng DU