Patents by Inventor Jianping Zhao

Jianping Zhao 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: 20120248310
    Abstract: An ion energy analyzer for determining an ion energy distribution of a plasma and comprising an entrance grid, a selection grid, and an ion collector. The entrance grid includes a first plurality of openings dimensioned to be less than a Debye length for the plasma. The ion collector is coupled to the entrance grid via a first voltage source. The selection grid is positioned between the entrance grid and the ion collector and is coupled to the entrance grid via a second voltage source. An ion current meter is coupled to the ion collector to measure an ion flux onto the ion collector and transmit a signal related thereto.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 4, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Lee Chen, Barton Lane, Merritt Funk, Jianping Zhao, Radha Sundararajan
  • Publication number: 20120091097
    Abstract: The invention provide apparatus and methods for creating gate structures on a substrate in real-time using Vacuum Ultra-Violet (VUV) data and Electron Energy Distribution Function (EEDƒ) data and associated (VUV/EEDƒ)-related procedures in (VUV/EEDƒ) etch systems. The (VUV/EEDƒ)-related procedures can include multi-layer-multi-step processing sequences and (VUV/EEDƒ)-related models that can include Multi-Input/Multi-Output (MIMO) models.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Lee CHEN, Jianping ZHAO
  • Publication number: 20120095586
    Abstract: The invention provides an apparatus and methods for creating gate structures on a substrate in real-time using Vacuum Ultra-Violet (VUV) data and Electron Energy Distribution Function (EEDf) data and associated (VUV/EEDf)-related procedures in (VUV/EEDf) etch systems. The (VUV/EEDf)-related procedures can include multi-layer-multi-step processing sequences and (VUV/EEDf)-related models that can include Multi-Input/Multi-Output (MIMO) models.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Lee CHEN, Jianping ZHAO
  • Publication number: 20120084026
    Abstract: Disclosed are a method and system for measuring the electron energy distribution function (EEDF) in a plasma which has a pronounced drifting Maxwellian component of the EEDF. The method comprises fitting an acquired unfiltered electron current vs. bias voltage curve to a functional form which assumes an EEDF comprising at least one stationary Maxwellian component and at least one drifting Maxwellian component. The method and system allow more accurate characterization of plasmas with electron components with pronounced drift, such as plasmas in microwave surface wave plasma (SWP) sources.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 5, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Ronald Victor BRAVENEC, Jianping Zhao
  • Publication number: 20110081500
    Abstract: A method of integrating a fluorine-based dielectric with a metallization scheme is described. The method includes forming a fluorine-based dielectric layer on a substrate, forming a metal-containing layer on the substrate, and adding a buffer layer or modifying a composition of the fluorine-based dielectric layer proximate an interface between the fluorine-based dielectric layer and the metal-containing layer.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jianping Zhao, Lee Chen
  • Publication number: 20110081503
    Abstract: A method of integrating a fluorine-based dielectric with a metallization scheme is described. The method includes forming a fluorine-based dielectric layer on a substrate, forming a metal-containing layer on the substrate, and adding a buffer layer or modifying a composition of the fluorine-based dielectric layer proximate an interface between the fluorine-based dielectric layer and the metal-containing layer.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Inventors: Jianping ZHAO, Lee CHEN
  • Publication number: 20110057562
    Abstract: A surface wave plasma (SWP) source is described. The SWP source comprises an electromagnetic (EM) wave launcher configured to couple EM energy in a desired EM wave mode to a plasma by generating a surface wave on a plasma surface of the EM wave launcher adjacent the plasma. The EM wave launcher comprises a slot antenna having a plurality of slots. The SWP source further comprises a first recess configuration formed in the plasma surface, wherein the first recess configuration is substantially aligned with a first arrangement of slots in the plurality of slots, and a second recess configuration formed in the plasma surface, wherein the second recess configuration is either partly aligned with a second arrangement of slots in the plurality of slots or not aligned with the second arrangement of slots in the plurality of slots. A power coupling system is coupled to the EM wave launcher and configured to provide the EM energy to the EM wave launcher for forming the plasma.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 10, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Lee CHEN, Jianping ZHAO, Ronald V. BRAVENEC, Merritt FUNK
  • Publication number: 20110039355
    Abstract: The invention can provide apparatus and methods of processing a substrate using plasma generation by gravity-induced gas-diffusion separation techniques. By adding or using gases including inert and process gases with different gravities (i.e., ratio between the molecular weight of a gaseous constituent and a reference molecular weight), a two-zone or multiple-zone plasma can be formed, in which one kind of gas can be highly constrained near a plasma generation region and another kind of gas can be largely separated from the aforementioned gas due to differential gravity induced diffusion and is constrained more closer to a wafer process region than the aforementioned gas.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 17, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jianping Zhao, Lee Chen, Merritt Funk, Toshihisa Nozawa