Patents by Inventor Li-Qun Xia

Li-Qun Xia 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).

  • Patent number: 9748125
    Abstract: A processing chamber having a plurality of movable substrate carriers stacked therein for continuously processing a plurality of substrates is provided. The movable substrate carrier is capable of being transported from outside of the processing chamber, e.g., being transferred from a load luck chamber, into the processing chamber and out of the processing chamber, e.g., being transferred into another load luck chamber. Process gases delivered into the processing chamber are spatially separated into a plurality of processing slots, and/or temporally controlled. The processing chamber can be part of a multi-chamber substrate processing system.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 29, 2017
    Assignee: Applied Materials, Inc.
    Inventors: Banqiu Wu, Nag B. Patibandla, Toshiaki Fujita, Ralf Hofmann, Pravin K. Narwankar, Jeonghoon Oh, Srinivas Satya, Li-Qun Xia
  • Publication number: 20170206922
    Abstract: A method and apparatus for forming magnetic media substrates is provided. A patterned resist layer is formed on a substrate having a magnetically susceptible layer. A conformal protective layer is formed over the patterned resist layer to prevent degradation of the pattern during subsequent processing. The substrate is subjected to an energy treatment wherein energetic species penetrate portions of the patterned resist and conformal protective layer according to the pattern formed in the patterned resist, impacting the magnetically susceptible layer and modifying a magnetic property thereof. The patterned resist and conformal protective layers are then removed, leaving a magnetic substrate having a pattern of magnetic properties with a topography that is substantially unchanged.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Inventors: Christopher Dennis BENCHER, Roman GOUK, Steven VERHAVERBEKE, Li-Qun XIA, Yong-Won LEE, Matthew D. SCOTNEY-CASTLE, Martin A. HILKENE, Peter I. PORSHNEV
  • Patent number: 9646642
    Abstract: A method and apparatus for forming magnetic media substrates is provided. A patterned resist layer is formed on a substrate having a magnetically susceptible layer. A conformal protective layer is formed over the patterned resist layer to prevent degradation of the pattern during subsequent processing. The substrate is subjected to an energy treatment wherein energetic species penetrate portions of the patterned resist and conformal protective layer according to the pattern formed in the patterned resist, impacting the magnetically susceptible layer and modifying a magnetic property thereof. The patterned resist and conformal protective layers are then removed, leaving a magnetic substrate having a pattern of magnetic properties with a topography that is substantially unchanged.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: May 9, 2017
    Assignee: Applied Materials, Inc.
    Inventors: Christopher Dennis Bencher, Roman Gouk, Steven Verhaverbeke, Li-Qun Xia, Yong-Won Lee, Matthew D. Scotney-Castle, Martin A. Hilkene, Peter I. Porshnev
  • Patent number: 9633861
    Abstract: Embodiments of the present invention provide processes to selectively form a metal layer on a conductive surface, followed by flowing a silicon based compound over the metal layer to form a metal silicide layer. In one embodiment, a substrate having a conductive surface and a dielectric surface is provided. A metal layer is then deposited on the conductive surface. A metal silicide layer is formed as a result of flowing a silicon based compound over the metal layer. A dielectric is formed over the metal silicide layer.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: April 25, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Weifeng Ye, Mei-yee Shek, Mihaela Balseanu, Xiaojun Zhang, Xiaolan Ba, Yu Jin, Li-Qun Xia
  • Patent number: 9580801
    Abstract: Embodiments described herein generally relate to the formation of a UV compatible barrier stack. Methods described herein can include delivering a process gas to a substrate positioned in a process chamber. The process gas can be activated to form an activated process gas, the activated process gas forming a barrier layer on a surface of the substrate, the barrier layer comprising silicon, carbon and nitrogen. The activated process gas can then be purged from the process chamber. An activated nitrogen-containing gas can be delivered to the barrier layer, the activated nitrogen-containing gas having a N2:NH3 ratio of greater than about 1:1. The activated nitrogen-containing gas can then be purged from the process chamber. The above elements can be performed one or more times to deposit the barrier stack.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 28, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Xiaolan Ba, Weifeng Ye, Mei-yee Shek, Yu Jin, Li-Qun Xia, Deenesh Padhi, Alexandros T. Demos
  • Publication number: 20170053792
    Abstract: Methods for the deposition of SiN films comprising sequential exposure of a substrate surface to a silicon halide precursor at a temperature greater than or equal to about 600° C. and a nitrogen-containing reactant.
    Type: Application
    Filed: August 16, 2016
    Publication date: February 23, 2017
    Inventors: Xinliang Lu, Pingyan Lei, Chien-Teh Kao, Mihaela Balseanu, Li-Qun Xia, Mandyam Sriram
  • Publication number: 20160322214
    Abstract: Methods for the formation of SiCN, SiCO and SiCON films comprising cyclical exposure of a substrate surface to a silicon-containing gas, a carbon-containing gas and a plasma. Some embodiments further comprise the addition of an oxidizing agent prior to at least the plasma exposure.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 3, 2016
    Inventors: Ning Li, Mark Saly, David Thompson, Mihaela Balseanu, Li-Qun Xia
  • Patent number: 9478460
    Abstract: Embodiments of the invention provide processes to selectively form a cobalt layer on a copper surface over exposed dielectric surfaces. Embodiments described herein control selectivity of deposition by preventing damage to the dielectric surface, repairing damage to the dielectric surface, such as damage which can occur during the cobalt deposition process, and controlling deposition parameters for the cobalt layer.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 25, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Mei-yee Shek, Weifeng Ye, Li-Qun Xia, Kang Sub Yim, Kelvin Chan
  • Patent number: 9443716
    Abstract: Methods for self-aligned multiple patterning including controlled slimming of features during spacer layer deposition. Multiple spacer layer deposition process conditions produce a balance between controlling the damage to the features and increasing production throughput.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: September 13, 2016
    Assignee: Applied Materials, Inc.
    Inventors: Kenji Takeshita, Nobuhiro Sakamoto, Yoshihiro Takenaga, Li-Qun Xia, Mandyam Sriram
  • Publication number: 20160141203
    Abstract: Embodiments of the invention provide processes to selectively form a cobalt layer on a copper surface over exposed dielectric surfaces. Embodiments described herein control selectivity of deposition by preventing damage to the dielectric surface, repairing damage to the dielectric surface, such as damage which can occur during the cobalt deposition process, and controlling deposition parameters for the cobalt layer.
    Type: Application
    Filed: August 10, 2015
    Publication date: May 19, 2016
    Inventors: MEI-YEE SHEK, Weifeng Ye, Li-Qun Xia, Kang Sub Yim, Kelvin Chan
  • Publication number: 20160104613
    Abstract: Methods for self-aligned multiple patterning including controlled slimming of features during spacer layer deposition. Multiple spacer layer deposition process conditions produce a balance between controlling the damage to the features and increasing production throughput.
    Type: Application
    Filed: October 8, 2015
    Publication date: April 14, 2016
    Inventors: Kenji Takeshita, Nobuhiro Sakamoto, Yoshihiro Takenaga, Li-Qun Xia, Mandyam Sriram
  • Publication number: 20160099143
    Abstract: Processes for depositing SiO2 films on a wafer surface utilizing an aminosilane compound as a silicon precursor are described.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 7, 2016
    Inventors: Wenbo Yan, Cong Trinh, Ning Li, Victor Nguyen, Mihaela Balseanu, Li-Qun Xia, Mark Saly
  • Publication number: 20160097122
    Abstract: A heating module for use in a substrate processing chamber. The heating module having a housing with a heat source therein. The heating module can be part of a gas distribution assembly positioned above a susceptor assembly to heat the top surface of the susceptor and wafers directly. The heating module can have constant or variable power output. Processing chambers and methods of processing a wafer using the heating module are described.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 7, 2016
    Inventors: Joseph Yudovsky, Robert T. Trujillo, Kevin Griffin, Garry K. Kwong, Kallol Bera, Li-Qun Xia, Mandyam Sriram
  • Patent number: 9297073
    Abstract: Embodiments disclosed herein generally relate to the processing of substrates, and more particularly, relate to methods for accurate control of film thickness using deposition-etch cycles. Particularly, embodiments of the present disclosure may be used in controlling film thickness during filling high aspect ratio features.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 29, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Ning Li, Wenbo Yan, Victor Nguyen, Cong Trinh, Mihaela Balseanu, Li-Qun Xia
  • Publication number: 20160071724
    Abstract: Embodiments described herein generally relate to the formation of a UV compatible barrier stack. Methods described herein can include delivering a process gas to a substrate positioned in a process chamber. The process gas can be activated to form an activated process gas, the activated process gas forming a barrier layer on a surface of the substrate, the barrier layer comprising silicon, carbon and nitrogen. The activated process gas can then be purged from the process chamber. An activated nitrogen-containing gas can be delivered to the barrier layer, the activated nitrogen-containing gas having a N2:NH3 ratio of greater than about 1:1. The activated nitrogen-containing gas can then be purged from the process chamber. The above elements can be performed one or more times to deposit the barrier stack.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 10, 2016
    Inventors: Xiaolan BA, Weifeng YE, Mei-yee SHEK, Yu JIN, Li-Qun XIA, Deenesh PADHI, Alexandros T. DEMOS
  • Publication number: 20160013049
    Abstract: Embodiments of the present invention generally relate to a method for forming a dielectric barrier layer. The dielectric barrier layer is deposited over a substrate by a plasma enhanced deposition process. In one embodiment, a gas mixture is introduced into a processing chamber. The gas mixture includes a silicon-containing gas, a nitrogen-containing gas, a boron-containing gas, and argon (Ar) gas.
    Type: Application
    Filed: February 18, 2014
    Publication date: January 14, 2016
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Weifeng YE, Mei-yee SHEK, Mihaela BALSEANU, Xiaojun ZHANG, Xiaolan BA, Yu JIN, Li-Qun XIA
  • Publication number: 20150380221
    Abstract: A plasma source assembly for use with a processing chamber includes a blocker plate with a first set of apertures within an inner electrical center of the blocker plate and smaller apertures around the outer peripheral edge. The apertures can decrease gradually in diameter from the electrical center outward to the peripheral edge or can be in discrete increments with the smallest at the outer peripheral edge.
    Type: Application
    Filed: November 24, 2014
    Publication date: December 31, 2015
    Inventors: Ren Liu, John C. Forster, Joseph Yudovsky, Somesh Khandelwal, Kallol Bera, Li-Qun Xia
  • Publication number: 20150299856
    Abstract: Embodiments disclosed herein generally relate to the processing of substrates, and more particularly, relate to methods for accurate control of film thickness using deposition-etch cycles. Particularly, embodiments of the present disclosure may be used in controlling film thickness during filling high aspect ratio features.
    Type: Application
    Filed: February 19, 2015
    Publication date: October 22, 2015
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Ning LI, Wenbo YAN, Victor NGUYEN, Cong TRINH, Mihaela BALSEANU, Li-Qun XIA
  • Publication number: 20150255324
    Abstract: Embodiments disclosed herein generally relate to forming dielectric materials in high aspect ratio features. In one embodiment, a method for filling high aspect ratio trenches in one processing chamber is disclosed. The method includes placing a substrate inside a processing chamber, where the substrate has a surface having a plurality of high aspect ratio trenches and the surface is facing a gas/plasma distribution assembly. The method further includes performing a sequence of depositing a layer of dielectric material on the surface of the substrate and inside each of the plurality of trenches, where the layer of dielectric material is on a bottom and side walls of each trench, and removing a portion of the layer of dielectric material disposed on the surface of the substrate, where an opening of each trench is widened. The sequence repeats until the trenches are filled seamlessly with the dielectric material.
    Type: Application
    Filed: February 25, 2015
    Publication date: September 10, 2015
    Inventors: Ning LI, Victor NGUYEN, Mihaela BALSEANU, Li-Qun XIA, Steven D. MARCUS, Haichun YANG, Keiichi TANAKA
  • Publication number: 20150252477
    Abstract: Embodiments disclosed herein generally relate to the processing of substrates, and more particularly, relate to methods for forming a dielectric film. In one embodiment, the method includes placing a plurality of substrates inside a processing chamber and performing a sequence of exposing the substrates to a first reactive gas comprising silicon, and then exposing the substrates to a plasma of a second reactive gas comprising nitrogen and at least one of oxygen or carbon, and repeating the sequence to form the dielectric film comprising silicon carbon nitride or silicon carbon oxynitride on each of the substrates.
    Type: Application
    Filed: February 6, 2015
    Publication date: September 10, 2015
    Inventors: Victor NGUYEN, Mihaela BALSEANU, Ning LI, Steven D. MARCUS, Mark SALY, David THOMPSON, Li-Qun XIA