Patents by Inventor Teng Hai CHUAH

Teng Hai CHUAH 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: 11424226
    Abstract: The invention relates to a light emitting device comprising: a support, at least two light-emitting elements at a top side of the support, first connection locations and a single second connection location at a bottom side of the support, wherein each light-emitting element comprises a first contact location and a second contact location at a side facing away from the support, each first contact location is connected to one of the first connection locations via a first connection, all of the second contact locations are connected to the second connection location via a second connection, the first connections run along an outer surface of the support, and the second connection runs through the support.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 23, 2022
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Seong Tak Koay, Adelene Geok Ling Ng, Chui Wai Chong, Teng Hai Chuah
  • Patent number: 11121300
    Abstract: A method of producing optoelectronic semiconductor devices includes in the stated order: A) providing a semiconductor layer sequence on a transparent wafer, the semiconductor layer sequence including an active layer; B) applying electrical contact pads on a mounting face of the semiconductor layer sequence; C) coating the semiconductor layer sequence at the mounting face and/or on the electrical contact pads with a protective layer; D) dicing the semiconductor layer sequence and the wafer to form semiconductor chips with side faces; E) forming a casting body all around the semiconductor chips directly on the side faces, the protective layer having anti-wetting properties towards a material of the casting body; and F) dicing the casting body to the optoelectronic semiconductor devices, wherein the protective layer remains on the mounting face and/or on the electrical contact pads in the finished optoelectronic semiconductor devices.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: September 14, 2021
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Chui Wai Chong, Teng Hai Chuah, Seong Tak Koay, Adelene Ng
  • Publication number: 20210074894
    Abstract: A method of producing optoelectronic semiconductor devices includes in the stated order: A) providing a semiconductor layer sequence on a transparent wafer, the semiconductor layer sequence including an active layer; B) applying electrical contact pads on a mounting face of the semiconductor layer sequence; C) coating the semiconductor layer sequence at the mounting face and/or on the electrical contact pads with a protective layer; D) dicing the semiconductor layer sequence and the wafer to form semiconductor chips with side faces; E) forming a casting body all around the semiconductor chips directly on the side faces, the protective layer having anti-wetting properties towards a material of the casting body; and F) dicing the casting body to the optoelectronic semiconductor devices, wherein the protective layer remains on the mounting face and/or on the electrical contact pads in the finished optoelectronic semiconductor devices.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 11, 2021
    Inventors: Chui Wai Chong, Teng Hai Chuah, Seong Tak Koay, Adelene Ng
  • Publication number: 20210043609
    Abstract: The invention relates to a light emitting device comprising: a support, at least two light-emitting elements at a top side of the support, first connection locations and a single second connection location at a bottom side of the support, wherein each light-emitting element comprises a first contact location and a second contact location at a side facing away from the support, each first contact location is connected to one of the first connection locations via a first connection, all of the second contact locations are connected to the second connection location via a second connection, the first connections run along an outer surface of the support, and the second connection runs through the support.
    Type: Application
    Filed: March 5, 2018
    Publication date: February 11, 2021
    Inventors: Seong Tak KOAY, Adelene Geok Ling NG, Chui Wai CHONG, Teng Hai CHUAH