Patents by Inventor Chia-Kung Chang

Chia-Kung Chang 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).

  • Publication number: 20240114458
    Abstract: The present invention provides a wireless communication method, wherein the wireless communication method includes the steps of: controlling the electronic device to operate in an active mode and communicating with an access point; after a traffic between the electronic device and the access point ends, controlling the electronic device to operate in a first mode, and transmitting a null frame to notify the access point that the electronic device enters a power saving mode; and during the first mode, controlling the electronic device to leave the power saving mode and transmitting at least one query signal to the access point to ask data.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Applicant: MEDIATEK INC.
    Inventors: Cheng-Kung Lai, Chia-Ning Chang, Po-Hao Hsiao
  • Patent number: 6344369
    Abstract: A process for forming a color image sensor cell, in which a bonding pad structure is protected from exposure to alkaline developer solution, used for definition of color filter elements, and also used to open a contact hole to the bonding pad structure, has been developed. The process features the use of a passivation layer, comprised of an overlying silicon nitride layer, and an underlying silicon oxide layer, located on the top surface of the bonding pad structure. The passivation layer protects the underlying bond pad structure from alkaline developer solutions used to define overlying color filter elements, of the color image sensor cell. After definition of the color filter elements the contact hole opening to the bond pad is finalized using a dry etching procedure, applied to the passivation layer.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: February 5, 2002
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Chia-Mei Huang, Chao-Yi Lan, Hsiao-Ping Chang, Chia-Kung Chang