Patents by Inventor Kungang Zhou

Kungang Zhou 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: 11269091
    Abstract: Some embodiments include a system, comprising: first circuit including a transistor having an optically sensitive threshold voltage; a light source configured to illuminate the transistor; and a control circuit configured to activate the light source based on the threshold voltage. In some embodiments, a threshold voltage of the transistor may be stabilized.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: March 8, 2022
    Assignee: Varex Imaging Corporation
    Inventors: Richard Weisfield, Kungang Zhou
  • Publication number: 20200341156
    Abstract: Some embodiments include a system, comprising: first circuit including a transistor having an optically sensitive threshold voltage; a light source configured to illuminate the transistor; and a control circuit configured to activate the light source based on the threshold voltage. In some embodiments, a threshold voltage of the transistor may be stabilized.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Applicant: Varex Imaging Corporation
    Inventors: Richard Weisfield, Kungang Zhou
  • Publication number: 20110127534
    Abstract: A method is provided for fabricating an image sensor array in a manner that reduces the potential for defects resulting from electrostatic discharge events during fabrication of the image sensor array. The method includes: forming at least one pixel over a substrate, the pixel including a switching transistor and a photo-sensitive cell; and forming a dielectric interlayer over the pixel. A key step in the method of the present invention is depositing a first conductive layer over the dielectric interlayer. After the first conductive layer is formed, the image sensor array is well protected from ESD events because the first conductive layer spreads out any charge induced by tribo-electric charging events that may occur during subsequent fabrication processing steps, thereby reducing the potential for localized damage to the switching transistors upon the occurrence of ESD events.
    Type: Application
    Filed: February 9, 2011
    Publication date: June 2, 2011
    Inventors: Richard Weisfield, Kungang Zhou, David Doan
  • Patent number: 7902004
    Abstract: A method is provided for fabricating an image sensor array in a manner that reduces the potential for defects resulting from electrostatic discharge events during fabrication of the image sensor array. The method includes: forming at least one pixel over a substrate, the pixel including a switching transistor and a photo-sensitive cell; and forming a dielectric interlayer over the pixel. A key step in the method of the present invention is depositing a first conductive layer over the dielectric interlayer. After the first conductive layer is formed, the image sensor array is well protected from ESD events because the first conductive layer spreads out any charge induced by tribo-electric charging events that may occur during subsequent fabrication processing steps, thereby reducing the potential for localized damage to the switching transistors upon the occurrence of ESD events.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: March 8, 2011
    Assignee: dpiX LLC
    Inventors: Richard Weisfield, Kungang Zhou, David Doan
  • Publication number: 20100091149
    Abstract: A method is provided for fabricating an image sensor array in a manner that reduces the potential for defects resulting from electrostatic discharge events during fabrication of the image sensor array. The method includes: forming at least one pixel over a substrate, the pixel including a switching transistor and a photo-sensitive cell; and forming a dielectric interlayer over the pixel. A key step in the method of the present invention is depositing a first conductive layer over the dielectric interlayer. After the first conductive layer is formed, the image sensor array is well protected from ESD events because the first conductive layer spreads out any charge induced by tribo-electric charging events that may occur during subsequent fabrication processing steps, thereby reducing the potential for localized damage to the switching transistors upon the occurrence of ESD events.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Applicant: dpiX LLC
    Inventors: Richard Weisfield, Kungang Zhou, David Doan