Patents by Inventor Gengwei Jiang

Gengwei Jiang 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: 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
  • Publication number: 20140216336
    Abstract: Disclosed methods cap exposed surfaces of copper lines with a layer of metal or metal-containing compound combined with silicon. In some cases, the metal or metal-containing compound forms an atomic layer. In certain embodiments, the methods involve exposing the copper surface first to a metal containing precursor to form an atomic layer of adsorbed precursor or metal atoms, which may optionally be converted to an oxide, nitride, carbide, or the like by, e.g., a pinning treatment. Subsequent exposure to a silicon-containing precursor may proceed with or without metallic atoms being converted.
    Type: Application
    Filed: April 3, 2014
    Publication date: August 7, 2014
    Applicant: Novellus Systems, Inc.
    Inventors: Jengyi Yu, Gengwei Jiang, Pramod Subramonium, Roey Shaviv, Hui-Jung Wu, Nagraj Shankar
  • Patent number: 8753978
    Abstract: Disclosed methods cap exposed surfaces of copper lines with a layer of metal or metal-containing compound combined with silicon. In some cases, the metal or metal-containing compound forms an atomic layer. In certain embodiments, the methods involve exposing the copper surface first to a metal containing precursor to form an atomic layer of adsorbed precursor or metal atoms, which may optionally be converted to an oxide, nitride, carbide, or the like by, e.g., a pinning treatment. Subsequent exposure to a silicon-containing precursor may proceed with or without metallic atoms being converted.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: June 17, 2014
    Assignee: Novellus Systems, Inc.
    Inventors: Jengyi Yu, Gengwei Jiang, Pramod Subramonium, Roey Shaviv, Hui-Jung Wu, Nagraj Shankar
  • Patent number: 8512818
    Abstract: A highly tensile dielectric layer is generated on a heat sensitive substrate while not exceeding thermal budget constraints. Cascaded ultraviolet (UV) irradiation is used to produce highly tensile films to be used, for example, in strained NMOS transistor architectures. Successive UV radiation of equal or shorter wavelengths with variable intensity and duration selectively breaks bonds in the Si—N matrix and minimizes shrinkage and film relaxation. Higher tensile stress than a non-cascaded approach may be obtained.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: August 20, 2013
    Assignee: Novellus Systems, Inc.
    Inventors: Bhadri Varadarajan, Gengwei Jiang, Sirish K. Reddy, James S. Sims
  • Publication number: 20130143401
    Abstract: Disclosed methods cap exposed surfaces of copper lines with a layer of metal or metal-containing compound combined with silicon. In some cases, the metal or metal-containing compound forms an atomic layer. In certain embodiments, the methods involve exposing the copper surface first to a metal containing precursor to form an atomic layer of adsorbed precursor or metal atoms, which may optionally be converted to an oxide, nitride, carbide, or the like by, e.g., a pinning treatment. Subsequent exposure to a silicon-containing precursor may proceed with or without metallic atoms being converted.
    Type: Application
    Filed: June 1, 2012
    Publication date: June 6, 2013
    Inventors: Jengyi Yu, Gengwei Jiang, Pramod Subramonium, Roey Shaviv, Hui-Jung Wu, Nagraj Shankar
  • Patent number: 8268722
    Abstract: Adhesive layers residing at an interface between metal lines and dielectric diffusion barrier (or etch stop) layers are used to improve electromigration performance of interconnects. Adhesion layers are formed by depositing a precursor layer of metal-containing material (e.g., material containing Al, Ti, Ca, Mg, etc.) over an exposed copper line, and converting the precursor layer to a passivated layer (e.g., nitridized layer). For example, a substrate containing exposed copper line having exposed Cu—O bonds is contacted with trimethylaluminum to form a precursor layer having Al—O bonds and Al—C bonds on copper surface. The precursor layer is then treated to remove residual organic substituents and to form Al—N, Al—H bonds or both. The treatment can include direct plasma treatment, remote plasma treatment, UV-treatment, and thermal treatment with a gas such as NH3, H2, N2, and mixtures thereof. A dielectric diffusion barrier layer is then deposited.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: September 18, 2012
    Assignee: Novellus Systems, Inc.
    Inventors: Jengyi Yu, Hui-Jung Wu, Girish Dixit, Bart van Schravendijk, Pramod Subramonium, Gengwei Jiang, George Andrew Antonelli, Jennifer O'loughlin
  • Patent number: 8211510
    Abstract: A highly tensile dielectric layer is generated on a heat sensitive substrate while not exceeding thermal budget constraints. Cascaded ultraviolet (UV) irradiation is used to produce highly tensile films to be used, for example, in strained NMOS transistor architectures. Successive UV radiation of equal or shorter wavelengths with variable intensity and duration selectively breaks bonds in the Si—N matrix and minimizes shrinkage and film relaxation. Higher tensile stress than a non-cascaded approach may be obtained.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: July 3, 2012
    Assignee: Novellus Systems, Inc.
    Inventors: Bhadri Varadarajan, Gengwei Jiang, Sirish K. Reddy, James S. Sims
  • Publication number: 20100308463
    Abstract: Adhesive layers residing at an interface between metal lines and dielectric diffusion barrier (or etch stop) layers are used to improve electromigration performance of interconnects. Adhesion layers are formed by depositing a precursor layer of metal-containing material (e.g., material containing Al, Ti, Ca, Mg, etc.) over an exposed copper line, and converting the precursor layer to a passivated layer (e.g., nitridized layer). For example, a substrate containing exposed copper line having exposed Cu—O bonds is contacted with trimethylaluminum to form a precursor layer having Al—O bonds and Al—C bonds on copper surface. The precursor layer is then treated to remove residual organic substituents and to form Al—N, Al—H bonds or both. The treatment can include direct plasma treatment, remote plasma treatment, UV-treatment, and thermal treatment with a gas such as NH3, H2, N2, and mixtures thereof. A dielectric diffusion barrier layer is then deposited.
    Type: Application
    Filed: January 15, 2010
    Publication date: December 9, 2010
    Inventors: Jengyi Yu, Hui-Jung Wu, Girish Dixit, Bart van Schravendijk, Pramod Subramonium, Gengwei Jiang, George Andrew Antonelli, Jennifer O'loughlin