Patents by Inventor Llewellyn Vaughan-Edmunds

Llewellyn Vaughan-Edmunds 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: 11538931
    Abstract: A semiconductor device includes a carrier generation layer disposed on a channel layer, a source contact and a drain contact disposed on the carrier generation layer, and a gate contact disposed between the source contact and the drain contact. The semiconductor device further includes a number N of conductive stripes disposed directly on the carrier generation layer in an area between the drain contact and the gate contact, and a number M of conductive transverse stripes disposed directly on the carrier generation layer in the area between the drain contact and the gate contact. Each of the N conductive stripes extends from and is electrically coupled to the drain contact. Each of the M conductive transverse stripes is aligned non-parallel to the N conductive stripes and is not in direct physical contact with the N conductive stripes.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: December 27, 2022
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Woochul Jeon, Ali Salih, Llewellyn Vaughan-Edmunds
  • Publication number: 20210013336
    Abstract: High-electron-mobility transistor (HEMT) devices are described in this patent application. In some implementations, the HEMT devices can include a back barrier hole injection structure. In some implementations, the HEMT devices include a conductive striped portion electrically coupled to a drain contact.
    Type: Application
    Filed: August 7, 2020
    Publication date: January 14, 2021
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Woochul JEON, Ali SALIH, Llewellyn Vaughan-Edmunds
  • Patent number: 10741682
    Abstract: High-electron-mobility transistor (HEMT) devices are described in this patent application. In some implementations, the HEMT devices can include a back barrier hole injection structure. In some implementations, the HEMT devices include a conductive striped portion electrically coupled to a drain contact.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: August 11, 2020
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Woochul Jeon, Ali Salih, Llewellyn Vaughan-Edmunds
  • Publication number: 20180138306
    Abstract: High-electron-mobility transistor (HEMT) devices are described in this patent application. In some implementations, the HEMT devices can include a back barrier hole injection structure. In some implementations, the HEMT devices include a conductive striped portion electrically coupled to a drain contact.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 17, 2018
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Woochul JEON, Ali SALIH, Llewellyn Vaughan-Edmunds