Patents by Inventor Hendra Ng

Hendra Ng 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: 10634998
    Abstract: Embodiments in accordance with the present invention encompass self-imageable polymer compositions containing a variety of photobase generators which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. The compositions of this invention can be tailored to form positive tone or negative tone images depending upon the intended application in aqueous developable medium. The images formed therefrom exhibit improved properties including low wafer stress and better thermo-mechanical properties, among other property enhancements.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 28, 2020
    Assignee: PROMERUS, LLC
    Inventors: Pramod Kandanarachchi, Larry F Rhodes, Hendra Ng, Wei Zhang, Brian Knapp
  • Publication number: 20190369492
    Abstract: Embodiments in accordance with the present invention encompass self-imageable polymer compositions containing a variety of photobase generators which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. The compositions of this invention can be tailored to form positive tone or negative tone images depending upon the intended application in aqueous developable medium. The images formed therefrom exhibit improved properties including low wafer stress and better thermo-mechanical properties, among other property enhancements.
    Type: Application
    Filed: July 22, 2019
    Publication date: December 5, 2019
    Applicant: PROMERUS, LLC
    Inventors: PRAMOD KANDANARACHCHI, LARRY F RHODES, HENDRA NG, WEI ZHANG, BRIAN KNAPP
  • Patent number: 10409160
    Abstract: Embodiments in accordance with the present invention encompass self-imagable polymer compositions containing a variety of photobase generators which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. The compositions of this invention can be tailored to form positive tone or negative tone images depending upon the intended application in aqueous developable medium. The images formed therefrom exhibit improved properties including low wafer stress and better thermo-mechanical properties, among other property enhancements.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: September 10, 2019
    Assignee: PROMERUS, LLC
    Inventors: Pramod Kandanarachchi, Larry F Rhodes, Hendra Ng, Wei Zhang, Brian Knapp
  • Publication number: 20180203349
    Abstract: Embodiments in accordance with the present invention encompass self-imagable polymer compositions containing a variety of photobase generators which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. The compositions of this invention can be tailored to form positive tone or negative tone images depending upon the intended application in aqueous developable medium. The images formed therefrom exhibit improved properties including low wafer stress and better thermo-mechanical properties, among other property enhancements.
    Type: Application
    Filed: March 12, 2018
    Publication date: July 19, 2018
    Applicant: PROMERUS, LLC
    Inventors: PRAMOD KANDANARACHCHI, LARRY F. RHODES, HENDRA NG, WEI ZHANG, BRIAN KNAPP
  • Patent number: 9952507
    Abstract: Embodiments in accordance with the present invention encompass self-imageable polymer compositions containing a variety of photobase generators which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. The compositions of this invention can be tailored to form positive tone or negative tone images depending upon the intended application in aqueous developable medium. The images formed therefrom exhibit improved properties including low wafer stress and better thermo-mechanical properties, among other property enhancements.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: April 24, 2018
    Assignee: PROMERUS, LLC
    Inventors: Pramod Kandanarachchi, Larry Rhodes, Hendra Ng, Wei Zhang, Brian Knapp
  • Patent number: 9823565
    Abstract: Embodiments in accordance with the present invention encompass negative-tone, solvent developable, self-imageable polymer compositions containing photobase generators which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: November 21, 2017
    Assignee: PROMERUS, LLC
    Inventors: Hendra Ng, Wei Zhang
  • Patent number: 9771443
    Abstract: The present invention relates to use of certain chain transfer agents to control molecular weight of addition mass polymerization of certain polycycloolefinic monomers. More specifically, the present invention relates to use of a series of substituted bicycloalkenes as chain transfer agents in the addition mass polymerization of a series of functionalized norbornene-type monomers. This invention also relates to compositions containing bicycloalkenes as chain transfer agents in forming “in mold” polycycloolefinic polymers by addition mass polymerization.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 26, 2017
    Assignee: PROMERUS, LLC
    Inventors: Hendra Ng, Keitaro Seto, Wei Zhang
  • Patent number: 9765180
    Abstract: The present invention relates to certain ring open metathesis polymerized (ROMP) polymers encompassing polycycloolefinic monomers and a certain of olefinic monomers having thermally labile functional group. More specifically, the present invention relates to ROMP polymers under mass polymerization conditions of a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like. This invention also relates to reaction compositions containing a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like, which undergo ring open metathesis polymerization to produce materials which are useful as flame retardant materials having a variety of applications.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 19, 2017
    Assignee: PROMERUS, LLC
    Inventors: Hendra Ng, Keitaro Seto, Wei Zhang
  • Patent number: 9765168
    Abstract: The present invention relates to certain vinyl addition polymers encompassing polycycloolefinic monomers and a certain of olefinic monomers having thermally labile functional group. More specifically, the present invention relates to vinyl addition polymers under mass polymerization conditions of a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like. This invention also relates to reaction compositions containing a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like, which undergo vinyl addition polymerization to produce materials which are useful as flame retardant materials having a variety of applications.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 19, 2017
    Assignee: PROMERUS, LLC
    Inventors: Hendra Ng, Keitaro Seto, Wei Zhang
  • Patent number: 9690196
    Abstract: Embodiments in accordance with the present invention encompass positive-tone, aqueous developable, self-imageable polymer compositions useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 27, 2017
    Assignee: PROMERUS, LLC
    Inventors: Hendra Ng, Sridevi Kaiti
  • Patent number: 9647222
    Abstract: Embodiments in accordance with the present invention provide for the use of polycycloolefins in electronic devices and more specifically to the use of such polycycloolefins as gate insulator layers used in the fabrication of electronic devices, the electronic devices that encompass such polycycloolefin gate insulator and processes for preparing such polycycloolefin gate insulator layers and electronic devices encompassing such layers.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 9, 2017
    Assignees: Merck Patent GmbH, Promerus LLC
    Inventors: David Christoph Müller, Toby Cull, Pawel Miskiewicz, Miguel Carrasco-Orozco, Andrew Bell, Edmund Elce, Larry F. Rhodes, Kazuyoshi Fujita, Hendra Ng, Pramod Kandanarachchi, Steven Smith
  • Patent number: 9647213
    Abstract: Embodiments in accordance with the present invention provide for the use of polycycloolefins in electronic devices and more specifically to the use of such polycycloolefins as interlayers applied to fluoropolymer layers used in the fabrication of electronic devices, the electronic devices that encompass such polycycloolefin interlayers and processes for preparing such polycycloolefin interlayers and electronic devices.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 9, 2017
    Assignees: Merck Patent GmbH, Promerus LLC
    Inventors: David Christoph Müller, Pawel Miskiewicz, Toby Cull, Piotr Wierzchowiec, Andrew Bell, Edmund Elce, Larry F. Rhodes, Kazuyoshi Fujita, Hendra Ng, Pramod Kandanarachchi, Steven Smith
  • Patent number: 9583713
    Abstract: Embodiments in accordance with the present invention provide for the use of polycycloolefins in electronic devices and more specifically to the use of such polycycloolefins as interlayers applied to fluoropolymer layers used in the fabrication of electronic devices, the electronic devices that encompass such polycycloolefin interlayers and processes for preparing such polycycloolefin interlayers and electronic devices.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: February 28, 2017
    Assignees: Merck Patent GmbH, Promerus LLC
    Inventors: David Christoph Mueller, Pawel Miskiewicz, Toby Cull, Piotr Wierzchowiec, Andrew Bell, Edmund Elce, Larry F. Rhodes, Kazuyoshi Fujita, Hendra Ng, Pramod Kandanarachchi, Steven Smith
  • Patent number: 9575409
    Abstract: Embodiments in accordance with the present invention encompass negative-tone, solvent developable, self-imageable polymer compositions useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: February 21, 2017
    Assignee: PROMERUS, LLC
    Inventors: Hendra Ng, Wei Zhang
  • Patent number: 9562124
    Abstract: The present invention relates to polynorbornene (PNB) composition embodiments that are useful for forming microelectronic and/or optoelectronic devices and assemblies thereof, and more specifically to compositions encompassing PNBs having norbornene-type repeating units that are polyether functionalized and an additive package containing a phenolic antioxidant and a diaryl amine synergist, and the microelectronic and/or optoelectronic devices made therefrom are resistant to thermo-oxidative chain degradation of said polyether functionalization.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: February 7, 2017
    Assignees: PROMERUS, LLC, SUMITOMO BAKELITE CO., LTD.
    Inventors: Christopher Apanius, Andrew Bell, Cheryl Burns, Crystal Cyrus, Edmund Elce, Royce Groff, Sridevi Kaiti, Brian Knapp, Hendra Ng, Seishi Ohashi, Wei Zhang
  • Publication number: 20160319060
    Abstract: The present invention relates to polynorbornene (PNB) composition embodiments that are useful for forming microelectronic and/or optoelectronic devices and assemblies thereof, and more specifically to compositions encompassing PNBs having norbornene-type repeating units that are polyether functionalized where such the PNBs of such compositions and the microelectronic and/or optoelectronic devices made therefrom are resistant to thermo-oxidative chain degradation of said polyether functionalization.
    Type: Application
    Filed: July 13, 2016
    Publication date: November 3, 2016
    Applicants: PROMERUS, LLC, SUMITOMO BAKELITE CO., LTD.
    Inventors: CHRISTOPHER APANIUS, ANDREW BELL, CHERYL BURNS, CRYSTAL CYRUS, EDMUND ELCE, ROYCE GROFF, SRIDEVI KAITI, BRIAN KNAPP, HENDRA NG, SEISHI OHASHI, WEI ZHANG
  • Publication number: 20160289373
    Abstract: The present invention relates to certain ring open metathesis polymerized (ROMP) polymers encompassing polycycloolefinic monomers and a certain of olefinic monomers having thermally labile functional group. More specifically, the present invention relates to ROMP polymers under mass polymerization conditions of a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like. This invention also relates to reaction compositions containing a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like, which undergo ring open metathesis polymerization to produce materials which are useful as flame retardant materials having a variety of applications.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: HENDRA NG, KEITARO SETO, WEI ZHANG
  • Publication number: 20160289371
    Abstract: The present invention relates to certain vinyl addition polymers encompassing polycycloolefinic monomers and a certain of olefinic monomers having thermally labile functional group. More specifically, the present invention relates to vinyl addition polymers under mass polymerization conditions of a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like. This invention also relates to reaction compositions containing a series of functionalized norbornene-type monomers and at least one other olefinic monomer containing a thermally labile functional group such as, ether, acetal, ester, and the like, which undergo vinyl addition polymerization to produce materials which are useful as flame retardant materials having a variety of applications.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: HENDRA NG, KEITARO SETO, WEI ZHANG
  • Publication number: 20160289353
    Abstract: The present invention relates to use of certain chain transfer agents to control molecular weight of addition mass polymerization of certain polycycloolefinic monomers. More specifically, the present invention relates to use of a series of substituted bicycloalkenes as chain transfer agents in the addition mass polymerization of a series of functionalized norbornene-type monomers. This invention also relates to compositions containing bicycloalkenes as chain transfer agents in forming “in mold” polycycloolefinic polymers by addition mass polymerization.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: HENDRA NG, KEITARO SETO, WEI ZHANG
  • Patent number: 9425404
    Abstract: The present invention relates to polynorbornene (PNB) composition embodiments that are useful for forming microelectronic and/or optoelectronic devices and assemblies thereof, and more specifically to compositions encompassing PNBs having norbornene-type repeating units that are polyether functionalized and an additive package containing a phenolic antioxidant and a synergist, and the microelectronic and/or optoelectronic devices made therefrom are resistant to thermo-oxidative chain degradation of said polyether functionalization.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: August 23, 2016
    Assignees: PROMERUS, LLC, SUMITOMO BAKELITE CO., LTD.
    Inventors: Christopher Apanius, Andrew Bell, Cheryl Burns, Crystal Cyrus, Edmund Elce, Royce Groff, Sridevi Kaiti, Brian Knapp, Hendra Ng, Seishi Ohashi, Wei Zhang