Patents by Inventor Tengfei MIAO

Tengfei MIAO 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: 20220293442
    Abstract: Methods and system are provided for dynamic process control in substrate processing, for example in semiconductor manufacturing applications. Some example systems and methods are provided for advanced monitoring and machine learning in atomic layer deposition (ALD) processes. Some examples also relate to dynamic process control and monitoring for chamber parameter matching and gas line charge times.
    Type: Application
    Filed: August 11, 2020
    Publication date: September 15, 2022
    Inventors: Purushottam Kumar, Tengfei Miao, Gengwei Jiang, Daniel Ho, Joseph R. Abel, Siddappa Attur, Pulkit Agarwal
  • Publication number: 20220275510
    Abstract: Silicon oxide, silicon nitride, and silicon oxynitride films may be deposited by thermal atomic layer deposition (thermal ALD) in a single wafer plasma reactor. The single wafer plasma reactor can perform thermal ALD and plasma-enhanced atomic layer deposition (PEALD). Highly conformal films may be deposited at a high deposition rate without damaging or with minimal damage to the substrate using thermal ALD. The substrate may be heated at an elevated temperature during oxidation and/or nitridation. In some implementations, the elevated temperature is between about 500 C and about 750 C. In some implementations, hydrogen and oxygen may be flowed as reactant gases during oxidation, where the hydrogen and oxygen may react in an exothermic reaction to drive formation of oxide.
    Type: Application
    Filed: July 24, 2020
    Publication date: September 1, 2022
    Applicant: Lam Research Corporation
    Inventors: Awnish GUPTA, Tengfei MIAO, Adrien LAVOIE, Douglas Walter AGNEW, Ian John CURTIN
  • Publication number: 20220165563
    Abstract: A method for doping a substrate is provided. A silicon oxide diffusion barrier layer is formed on a surface of the substrate. At least one dopant layer is deposited over the silicon oxide diffusion barrier layer. A cap layer is deposited over the at least one dopant layer forming a stack of the substrate, the silicon oxide diffusion layer, the at least one dopant layer, and the cap layer. The stack is annealed. The cap layer, at least one dopant layer, and the silicon oxide diffusion barrier layer are removed.
    Type: Application
    Filed: March 17, 2020
    Publication date: May 26, 2022
    Inventors: Purushottam KUMAR, Gengwei JIANG, Bart J. VAN SCHRAVENDIJK, Tengfei MIAO, Joseph R. ABEL, Adrien LAVOIE