Patents by Inventor XUNDONG DAI

XUNDONG DAI 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: 20240136159
    Abstract: Embodiments of process kits for use in a substrate process chamber are provided herein. A process kit for a substrate process chamber including: a cover ring configured to extend over unprotected dicing tape of a tape frame substrate during use and having a central opening configured to expose a semiconductor wafer supported on the dicing tape during use; and a metallic shield disposed adjacent to at least a portion of a lower surface of the cover ring such that the metallic shield at least partially lines the lower surface.
    Type: Application
    Filed: December 23, 2022
    Publication date: April 25, 2024
    Inventors: Harish Varma PENMETHSA, Ying WANG, Xundong DAI, Alejandro LIZARRAGA MALDONADO, Chin Seng LAU
  • Publication number: 20230288916
    Abstract: Apparatus for extending substrate queue time for hybrid bonding by preserving plasma activation. In some embodiments, the apparatus may include an environmentally controllable space with a support for holding a die or a substrate, a gas velocity accelerator that recirculates one or more gases laterally across the support, a filter, a humidifier apparatus that is fluidly connected to the environmentally controllable space, wherein the humidifier apparatus enables controllable humidity levels within the environmentally controllable space, a pressurizing apparatus fluidly connected to the humidifier apparatus on an output and fluidly connected to at least one gas supply on an input, a relative humidity (RH) sensor positioned within the environmentally controllable space, and an environment controller in communication with at least the humidifier apparatus and the RH sensor, wherein the environment controller is configured to maintain an RH level of approximately 80% to approximately 95%.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 14, 2023
    Inventors: Ying WANG, Xundong DAI, Guan Huei SEE, Ruiping WANG, Michael R. RICE, Hari Kishen PONNEKANTI, Nirmalya MAITY
  • Publication number: 20230167575
    Abstract: Electrochemical deposition systems and methods are described that have enhanced crystallization prevention features. The systems may include a bath vessel operable to hold an electrochemical deposition fluid having a metal salt dissolved in water. The systems may also include sensors including a thermometer and concentration sensor operable to measure characteristics of the electrochemical deposition fluid. The systems further include a computer configured to perform operations that include receiving system data from the electrochemical system and generating a control signal to change a characteristic of the electrochemical deposition fluid to prevent crystallization of a metal salt in the fluid. The computer generates the control signal based on processing that may include comparing an actual metal salt concentration in the electrochemical deposition fluid to a theoretical solubility limit for the metal salt in the fluid.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Kwan Wook Roh, Xundong Dai, Keith Edward Ypma, Scott A. Wehrmann
  • Patent number: 11309278
    Abstract: Methods for bonding substrates used, for example, in substrate-level packaging, are provided herein. In some embodiments, a method for bonding substrates includes: performing electrochemical deposition (ECD) to deposit at least one material on each of a first substrate and a second substrate, performing chemical mechanical polishing (CMP) on the first substrate and the second substrate to form a bonding interface on each of the first substrate and the second substrate, positioning the first substrate on the second substrate so that the bonding interface on the first substrate aligns with the bonding interface on the second substrate, and bonding the first substrate to the second substrate using the bonding interface on the first substrate and the bonding interface on the second substrate.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: April 19, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Prayudi Lianto, Guan Huei See, Sriskantharajah Thirunavukarasu, Arvind Sundarrajan, Xundong Dai, Peter Khai Mum Fung
  • Publication number: 20200135690
    Abstract: Methods for bonding substrates used, for example, in substrate-level packaging, are provided herein. In some embodiments, a method for bonding substrates includes: performing electrochemical deposition (ECD) to deposit at least one material on each of a first substrate and a second substrate, performing chemical mechanical polishing (CMP) on the first substrate and the second substrate to form a bonding interface on each of the first substrate and the second substrate, positioning the first substrate on the second substrate so that the bonding interface on the first substrate aligns with the bonding interface on the second substrate, and bonding the first substrate to the second substrate using the bonding interface on the first substrate and the bonding interface on the second substrate.
    Type: Application
    Filed: July 24, 2019
    Publication date: April 30, 2020
    Inventors: PRAYUDI LIANTO, GUAN HUEI SEE, SRISKANTHARAJAH THIRUNAVUKARASU, ARVIND SUNDARRAJAN, XUNDONG DAI, PETER KHAI MUM FUNG