Patents by Inventor Joseph Hung-chi Wei

Joseph Hung-chi Wei 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: 10763107
    Abstract: Methods and apparatuses suitable for encapsulation layers for memory devices at temperatures less than about 300° C. are provided herein. Methods involve introducing a reactive species by pulsing plasma while exposing a substrate to deposition reactants, and post-treating deposited encapsulation films to densify and reduce hydrogen content. Post-treatment methods include periodic exposure to inert plasma without reactants and exposure to ultraviolet radiation at a substrate temperature less than about 300° C.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: September 1, 2020
    Assignee: Lam Research Corporation
    Inventors: Bart J. van Schravendijk, Akhil Singhal, Joseph Hung-chi Wei, Bhadri N. Varadarajan, Kevin M. McLaughlin, Casey Holder, Ananda K. Banerji
  • Publication number: 20200152452
    Abstract: Methods and apparatuses suitable for depositing low hydrogen content, hermetic, thin encapsulation layers at temperatures less than about 300° C. are provided herein. Methods involve pulsing plasma while exposing a substrate to deposition reactants, and post-treating deposited encapsulation films to densify and reduce hydrogen content. Post-treatment methods include periodic exposure to inert plasma without reactants and exposure to ultraviolet radiation at a substrate temperature less than about 300° C.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 14, 2020
    Inventors: Bart J. van Schravendijk, Akhil Singhal, Joseph Hung-chi Wei, Bhadri N. Varadarajan, Kevin M. McLaughlin, Casey Holder, Ananda K. Banerji
  • Patent number: 10566186
    Abstract: Methods and apparatuses suitable for depositing low hydrogen content, hermetic, thin encapsulation layers at temperatures less than about 300° C. are provided herein. Methods involve pulsing plasma while exposing a substrate to deposition reactants, and post-treating deposited encapsulation films to densify and reduce hydrogen content. Post-treatment methods include periodic exposure to inert plasma without reactants and exposure to ultraviolet radiation at a substrate temperature less than about 300° C.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: February 18, 2020
    Assignee: Lam Research Corporation
    Inventors: Bart J. van Schravendijk, Akhil Singhal, Joseph Hung-chi Wei, Bhadri N. Varadarajan, Kevin McLaughlin, Casey Holder, Ananda Banerji
  • Publication number: 20190157078
    Abstract: Methods and apparatuses suitable for depositing low hydrogen content, hermetic, thin encapsulation layers at temperatures less than about 300° C. are provided herein. Methods involve pulsing plasma while exposing a substrate to deposition reactants, and post-treating deposited encapsulation films to densify and reduce hydrogen content. Post-treatment methods include periodic exposure to inert plasma without reactants and exposure to ultraviolet radiation at a substrate temperature less than about 300° C.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 23, 2019
    Inventors: Bart J. van Schravendijk, Akhil Singhal, Joseph Hung-chi Wei, Bhadri N. Varadarajan, Kevin McLaughlin, Casey Holder, Ananda Banerji
  • Patent number: 10157736
    Abstract: Methods and apparatuses suitable for depositing low hydrogen content, hermetic, thin encapsulation layers at temperatures less than about 300° C. are provided herein. Methods involve pulsing plasma while exposing a substrate to deposition reactants, and post-treating deposited encapsulation films to densify and reduce hydrogen content. Post-treatment methods include periodic exposure to inert plasma without reactants and exposure to ultraviolet radiation at a substrate temperature less than about 300° C.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: December 18, 2018
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Bart J. van Schravendijk, Akhil Singhal, Joseph Hung-chi Wei, Bhadri N. Varadarajan, Kevin M. McLaughlin, Casey Holder, Ananda K. Banerji
  • Publication number: 20170323785
    Abstract: Methods of depositing conformal, dense silicon-containing films having low hydrogen content are provided herein. Methods involve pulsing a plasma while exposing a substrate to a silicon-containing precursor and reactant to facilitate a primarily radical-based pulsed plasma enhanced chemical vapor deposition process for depositing a conformal silicon-containing film. Methods also involve periodically performing a post-treatment operation whereby, for every about 20 ? to about 50 ? of film deposited using pulsed plasma PECVD, the deposited film is exposed to an inert plasma to densify and reduce hydrogen content in the deposited film.
    Type: Application
    Filed: September 28, 2016
    Publication date: November 9, 2017
    Inventors: Akhil Singhal, Joseph Hung-chi Wei, Yisha Mao, Bart J. van Schravendijk
  • Publication number: 20170323803
    Abstract: Methods and apparatuses suitable for depositing low hydrogen content, hermetic, thin encapsulation layers at temperatures less than about 300° C. are provided herein. Methods involve pulsing plasma while exposing a substrate to deposition reactants, and post-treating deposited encapsulation films to densify and reduce hydrogen content. Post-treatment methods include periodic exposure to inert plasma without reactants and exposure to ultraviolet radiation at a substrate temperature less than about 300° C.
    Type: Application
    Filed: September 28, 2016
    Publication date: November 9, 2017
    Inventors: Bart J. van Schravendijk, Akhil Singhal, Joseph Hung-chi Wei, Bhadri N. Varadarajan, Kevin M. McLaughlin, Casey Holder, Ananda K. Banerji
  • Publication number: 20160358808
    Abstract: In one aspect, several apparatuses are described that allow a processing chamber designed for plasma-enhanced chemical vapor deposition on 300 mm wafers to be performed on 200 mm wafers. More specifically, a modified pedestal, carrier plate, and showerhead are described that have been designed for 200 mm wafers and are compatible with 300 mm wafer processing chambers. It has further been observed that deposited films using the modified 200 mm apparatuses are comparable in quality with films deposited with the 300 mm devices they replace.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 8, 2016
    Inventors: Eric Russell Madsen, Narudha Tai Ben-Yuhmin, Michael Christensen, Chris Erick Karlsrud, Joseph Hung-chi Wei, Linh Hoang, Alasdair Dent