Patents by Inventor Guangyun Zhang

Guangyun Zhang 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: 20110306211
    Abstract: A chemical mechanical polishing composition, comprising, as initial components: water; 0.1 to 40 wt % abrasive having an average particle size of 5 to 150 nm; 0.001 to 1 wt % of an adamarityl substance according to formula (II); 0 to 1 wt % diquaternary substance according to formula (I); and, 0 to 1 wt % of a quaternary ammonium compound. Also, provided is a method for chemical mechanical polishing using the chemical mechanical polishing composition.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 15, 2011
    Inventors: Yi Guo, Zhendong Liu, Kancharla-Arun Kumar Reddy, Guangyun Zhang
  • Publication number: 20110244685
    Abstract: A method for chemical mechanical polishing of a substrate is provided, comprising: providing a substrate, wherein the substrate comprises silicon oxide; providing a chemical mechanical polishing composition, comprising, as initial components: water; an abrasive; and a substance according to formula I wherein R1, R2 and R3 are each independently selected from a C1-4 alky group; providing a chemical mechanical polishing pad with a polishing surface; moving the polishing surface relative to the substrate; dispensing the chemical mechanical polishing composition onto the polishing surface; and, abrading at least a portion of the substrate to polish the substrate; wherein the substance according to formula I included in the chemical mechanical polishing composition provides an enhanced silicon oxide removal rate and an improved polishing defectivity performance; and, wherein at least some of the silicon oxide is removed from the substrate.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Inventors: Yi Guo, Zhendong Liu, Kancharla-Arun Kumar Reddy, Guangyun Zhang
  • Patent number: 8025813
    Abstract: A chemical mechanical polishing composition useful for chemical mechanical polishing of a substrate, wherein the substrate comprises a silicon oxide material and a silicon nitride material; and methods of making and using the chemical mechanical polishing composition. The chemical mechanical polishing composition comprises, as initial components: at least one of a first substance and a second substance; wherein the first substance is according to formula I wherein the second substance is according to formula II an abrasive; and water.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: September 27, 2011
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Zhendong Liu, Yi Guo, Kancharla-Arun Kumar Reddy, Guangyun Zhang
  • Publication number: 20110230048
    Abstract: A method for chemical mechanical polishing of a substrate is provided, comprising: providing a substrate, wherein the substrate comprises polysilicon, silicon oxide and silicon nitride; providing a chemical mechanical polishing composition, comprising, as initial components: water; an abrasive; an alkyl aryl polyether sulfonate compound, wherein the alkyl aryl polyether sulfonate compound has a hydrophobic portion having an alkyl group bound to an aryl ring and a nonionic acyclic hydrophilic portion having 4 to 100 carbon atoms; and a substance according to formula I wherein each of R1, R2, R3, R4, R5, R6 and R7 is a bridging group having a formula ā€”(CH2)nā€”, wherein n is an integer selected from 1 to 10; providing a chemical mechanical polishing pad with a polishing surface; moving the polishing surface relative to the substrate; dispensing the chemical mechanical polishing composition onto the polishing surface; and, abrading at least a portion of the substrate to polish the substrate; wherein at least s
    Type: Application
    Filed: March 16, 2010
    Publication date: September 22, 2011
    Inventors: Yi Guo, Zhendong Liu, Kancharla-Arun Kumar Reddy, Guangyun Zhang
  • Publication number: 20110230049
    Abstract: A method for chemical mechanical polishing of a substrate is provided, comprising: providing a substrate, wherein the substrate comprises polysilicon and at least one of silicon oxide and silicon nitride; providing a chemical mechanical polishing composition, comprising, as initial components: water; an abrasive; and an acyclic organosulfonic acid compound, wherein the acyclic organosulfonic acid compound has an acyclic hydrophobic portion having 6 to 30 carbon atoms and a nonionic acyclic hydrophilic portion having 10 to 300 carbon atoms; providing a chemical mechanical polishing pad with a polishing surface; moving the polishing surface relative to the substrate; dispensing the chemical mechanical polishing composition onto the polishing surface; and, abrading at least a portion of the substrate to polish the substrate; wherein at least some of the polysilicon is removed from the substrate; and, wherein at least some of the at least one of silicon oxide and silicon nitride is removed from the substrate.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 22, 2011
    Inventors: Yi Guo, Zhendong Liu, Kancharla-Arun Kumar Reddy, Guangyun Zhang
  • Publication number: 20110230050
    Abstract: A method for chemical mechanical polishing of a substrate is provided, comprising: providing a substrate, wherein the substrate comprises polysilicon and at least one of silicon oxide and silicon nitride; providing a chemical mechanical polishing composition, comprising, as initial components: water; an abrasive; and an alkyl aryl polyether sulfonate compound, wherein the alkyl aryl polyether sulfonate compound has a hydrophobic portion having an alkyl group bound to an aryl ring and a nonionic acyclic hydrophilic portion having 4 to 100 carbon atoms; providing a chemical mechanical polishing pad with a polishing surface; moving the polishing surface relative to the substrate; dispensing the chemical mechanical polishing composition onto the polishing surface; and, abrading at least a portion of the substrate to polish the substrate; wherein at least some of the polysilicon is removed from the substrate; and, wherein at least some of the at least one of silicon oxide and silicon nitride is removed from the su
    Type: Application
    Filed: March 16, 2010
    Publication date: September 22, 2011
    Inventors: Yi Guo, Zhendong Liu, Kancharla-Arun Kumar Reddy, Guangyun Zhang
  • Publication number: 20110111595
    Abstract: A chemical mechanical polishing composition useful for chemical mechanical polishing of a substrate, wherein the substrate comprises a silicon oxide material and a silicon nitride material; and methods of making and using the chemical mechanical polishing composition. The chemical mechanical polishing composition comprises, as initial components: at least one of a first substance and a second substance; wherein the first substance is according to formula I wherein the second substance is according to formula II an abrasive; and water.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 12, 2011
    Inventors: Zhendong Liu, Yi Guo, Kancharla-Arun Kumar Reddy, Guangyun Zhang