Patents by Inventor Jin Eun Choi

Jin Eun Choi 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).

  • Pixel circuit for global shutter of substrate stacked image sensor
    Patent number: 9324746
    Abstract: A pixel circuit for a global shutter of a substrate-stacked image sensor may include a semiconductor chip including: a photodiode configured to output electric charges generated through a light sensing operation; and a reset node configured to receive a reset voltage from a reset voltage node and reset the photodiode. The semiconductor chip may have a structure in which the semiconductor chip is stacked over another semiconductor chip.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: April 26, 2016
    Assignee: SILICONFILE TECHNOLOGIES INC.
    Inventors: Jin Eun Choi, Jae Won Uhm, Seung Hoon Sa
  • PIXEL CIRCUIT FOR GLOBAL SHUTTER OF SUBSTRATE STACKED IMAGE SENSOR
    Publication number: 20150084098
    Abstract: A pixel circuit for a global shutter of a substrate-stacked image sensor may include a semiconductor chip including: a photodiode configured to output electric charges generated through a light sensing operation; and a reset node configured to receive a reset voltage from a reset voltage node and reset the photodiode. The semiconductor chip may have a structure in which the semiconductor chip is stacked over another semiconductor chip.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 26, 2015
    Inventors: Jin Eun Choi, Jae Won Uhm, Seung Hoon Sa