Patents by Inventor David Alan Tence

David Alan Tence 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).

  • DEPOSITION OF METAL-CONTAINING FILMS AND CHAMBER CLEAN
    Publication number: 20250226227
    Abstract: Methods of forming a metal-containing layer on a semiconductor substrate are provided and may include performing multiple cycles of (a) co-flowing a metal-containing precursor and a reactant into a processing chamber housing the semiconductor substrate; and (b) after (a), flowing the reactant into a processing chamber housing the semiconductor substrate, wherein the reactant does not react with gas-phase metal-containing precursor. Methods of cleaning the processing chamber are also provided.
    Type: Application
    Filed: April 5, 2023
    Publication date: July 10, 2025
    Inventors: Dustin Zachary Austin, Bryce Isaiah Edmondson, Dennis M. Hausmann, Malak Khojasteh, Matthew Palmer Kwan, Esther Jeng, Yuxi Wang, Bo Gong, Andrew John McKerrow, Kyle Watt Hart, Rachel E. Batzer, Tongtong Guo, Hector Aaron Fuster, Boris Volosskiy, Francisco J. Juarez, David Alan Tence, Emile C. Draper, Jeya Prakash Ganesan, Ann Erickson, Phuong Kim Ta
  • Method of sensing degradation of piezoelectric actuators
    Patent number: 9457560
    Abstract: Systems and methods for sensing degradation of a piezoelectric actuator in a print head. One or more electrical pulses may be transmitted to the piezoelectric actuator that cause the piezoelectric actuator to bend, thereby creating a pressure wave. The pressure wave may be sensed and converted into an electrical signal. The electrical signal may be compared to a reference signal.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: October 4, 2016
    Assignees: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INCORPORATION
    Inventors: Steven E. Ready, Terrance L. Stephens, David L. Knierim, David Alan Tence
  • METHOD OF SENSING DEGRADATION OF PIEZOELECTRIC ACTUATORS
    Publication number: 20160082720
    Abstract: Systems and methods for sensing degradation of a piezoelectric actuator in a print head. One or more electrical pulses may be transmitted to the piezoelectric actuator that cause the piezoelectric actuator to bend, thereby creating a pressure wave. The pressure wave may be sensed and converted into an electrical signal. The electrical signal may be compared to a reference signal.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Steven E. Ready, Terrance L. Stephens, David L. Knierim, David Alan Tence