Patents by Inventor Eason Yu-Shen Su

Eason Yu-Shen Su 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: 9524874
    Abstract: An aqueous polishing composition comprising (A) abrasive ceria particles and (B) amphiphilic nonionic surfactants selected water-soluble and water-dispersible, linear and branched polyoxyalkylene blockcopolymers of the general formula I: R[(B1)m/(B2)nY]p (I), wherein the indices and the variables have the following meaning: m, n, and p integers?1; R hydrogen atom or monovalent or polyvalent organic residue, except C5-C20 alkyl groups; (B1) block of oxyethylene monomer units; (B2) block of substituted oxyalkylene monomer units wherein the substituents are selected from two methyl groups, alkyl groups of more than two carbon atoms and cycloalkyl, aryl, alkyl-cycloalkyl, alkyl-aryl, cycloalkyl-aryl and alkyl-cycloalkyl-aryl groups; and Y hydrogen atom or monovalent organic residue, except C5-C20 alkyl groups; with the proviso that when (B) contains more than one block (B1) or (B2) two blocks of the same type are separated by a block of the other type.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 20, 2016
    Assignee: BASF SE
    Inventors: Shyam Sundar Venkataraman, Eason Yu-Shen Su, Arend Jouke Kingma, Bastian Marten Noller
  • Patent number: 9487675
    Abstract: A chemical mechanical polishing (CMP) composition comprising: (A) inorganic particles, organic particles, or a mixture or composite thereof, (B) at least one type of an organic polymeric compound as a dispersing agent or charge reversal agent comprising a phosphonate (P(?O)(OR1)(OR2) or phosphonic acid (P(?O)(OH)2) moiety or their deprotonated forms as pendant groups, wherein R1 is alkyl, aryl, alkylaryl, or arylalkyl, R2 is H, alkyl, aryl, alkylaryl, or arylalkyl, and (C) an aqueous medium.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 8, 2016
    Assignee: BASF SE
    Inventors: Vijay Immanuel Raman, Yuzhuo Li, Christian Schade, Shyam Sundar Venkataraman, Eason Yu-Shen Su, Sheik Ansar Usman Ibrahim
  • Patent number: 9157012
    Abstract: Provided is a process for the manufacture of semiconductor devices comprising the chemical mechanical polishing of borophosphosilicate glass (BPSG) material in the presence of a chemical mechanical polishing (CMP) composition which comprises: (A) inorganic particles, organic particles, or a mixture or composite thereof, (B) at least one type of anionic phosphate or phosphonate as dispersing agent or charge reversal agent, (C) at least one type of surfactant, and (D) an aqueous medium.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 13, 2015
    Assignee: BASF SE
    Inventors: Shyam Sundar Venkataraman, Eason Yu-Shen Su
  • Publication number: 20150159050
    Abstract: A chemical mechanical polishing (CMP) composition comprising: (A) inorganic particles, organic particles, or a mixture or composite thereof, (B) at least one type of an organic polymeric compound as a dispersing agent or charge reversal agent comprising a phosphonate (P(?O)(OR1)(0R2) or phosphonic acid (P(?O)(OH)2) moiety or their deprotonated forms as pendant groups, wherein R1 is alkyl, aryl, alkylaryl, or arylalkyl, R2 is H, alkyl, aryl, alkylaryl, or arylalkyl, and (C) an aqueous medium.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 11, 2015
    Applicant: BASF SE
    Inventors: Vijay Immanuel Raman, Christian Schade, Shyam Sundar Venkataraman, Eason Yu-Shen Su, Sheik Ansar Usman Ibrahim
  • Publication number: 20140326701
    Abstract: Provided is a process for the manufacture of semiconductor devices comprising the chemical mechanical polishing of borophosphosilicate glass (BPSG) material in the presence of a chemical mechanical polishing (CMP) composition which comprises: (A) inorganic particles, organic particles, or a mixture or composite thereof, (B) at least one type of anionic phosphate or phosphonate as dispersing agent or charge reversal agent, (C) at least one type of surfactant, and (D) an aqueous medium.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 6, 2014
    Applicant: BASF SE
    Inventors: Shyam Sundar Venkataraman, Eason Yu-Shen Su
  • Publication number: 20130248756
    Abstract: An aqueous polishing composition comprising (A) abrasive ceria particles and (B) amphiphilic nonionic surfactants selected water-soluble and water-dispersible, linear and branched polyoxyalkylene blockcopolymers of the general formula I: R[(B1)m/(B2)nY]p (I), wherein the indices and the variables have the following meaning: m, n, and p integers>1; R hydrogen atom or monovalent or polyvalent organic residue, except C5-C20 alkyl groups; (B1) block of oxyethylene monomer units; (B2) block of substituted oxyalkylene monomer units wherein the substituents are selected from two methyl groups, alkyl groups of more than two carbon atoms and cycloalkyl, aryl, alkyl-cycloalkyl, alkyl-aryl, cycloalkyl-aryl and alkyl-cycloalkyl-aryl groups; and Y hydrogen atom or monovalent organic residue, except C5-C20 alkyl groups; with the proviso that when (B) contains more than one block (B1) or (B2) two blocks of the same type are separated by a block of the other type.
    Type: Application
    Filed: December 7, 2011
    Publication date: September 26, 2013
    Applicant: BASF SE
    Inventors: Shyam Sundar Venkataraman, Eason Yu-Shen Su, Arend Jouke Kingma, Bastian Marten Noller