Patents by Inventor S-I Chan

S-I Chan 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).

  • Image sensor
    Patent number: 9391107
    Abstract: An image sensor device includes a substrate having an active array region and a peripheral circuit region, a plurality of light-sensing elements disposed within the active array region, a first dielectric layer on the substrate, and a second dielectric layer on the first dielectric layer. A recess region is provided in the second dielectric layer to reveal a top surface of the first dielectric layer within the active array region. An angle between a sidewall of the second dielectric layer that defines the perimeter of the recess region and the top surface of the first dielectric layer is less than 90 degrees.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: July 12, 2016
    Assignee: Powerchip Technology Corporation
    Inventors: Chi-Ching Liao, Hung-Tai Lai, Shyng-Yeuan Che, S-I Chan