Patents by Inventor Celia Xin

Celia Xin 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).

  • CMOS image sensor with non-contact structure
    Patent number: 8513721
    Abstract: A complementary metal oxide semiconductor (CMOS) image sensor device includes a capacitive coupled photodiode that is formed within a region of a semiconductor substrate. The photodiode receives an incident light and generates a corresponding electric charge. The CMOS image sensor device includes a reset transistor coupled to the photodiode for reverse biasing the photodiode with a predetermined voltage. The CMOS image sensor device further includes a buffer circuit and a capacitor, which is interposed between the photodiode and the buffer circuit. The capacitor is configured to transfer the electric charge to the buffer circuit. The buffer circuit may include an emitter follower or a source follower transistor.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: August 20, 2013
    Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Bejing) Corporation
    Inventors: Hong Zhu, Liwei Wu, Jessy Xu, Samuel Leng, Celia Xin, Jim Yang
  • CMOS IMAGE SENSOR WITH NON-CONTACT STRUCTURE
    Publication number: 20120181589
    Abstract: A complementary metal oxide semiconductor (CMOS) image sensor device includes a capacitive coupled photodiode that is formed within a region of a semiconductor substrate. The photodiode receives an incident light and generates a corresponding electric charge. The CMOS image sensor device includes a reset transistor coupled to the photodiode for reverse biasing the photodiode with a predetermined voltage. The CMOS image sensor device further includes a buffer circuit and a capacitor, which is interposed between the photodiode and the buffer circuit. The capacitor is configured to transfer the electric charge to the buffer circuit. The buffer circuit may include an emitter follower or a source follower transistor.
    Type: Application
    Filed: October 11, 2010
    Publication date: July 19, 2012
    Applicant: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: HONG ZHU, Liwei Wu, Jessy Xu, Samuel Leng, Celia Xin, Jim Yang