Patents by Inventor Pramod Kandanarachchi

Pramod Kandanarachchi 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: 20150079507
    Abstract: Disclosed herein are various amine treated maleic anhydride containing polymers and compositions thereof, which are useful for forming self-imageable films. In some embodiments, such polymers encompass norbornene-type repeating units containing pendent silyl groups and maleic anhydride-type repeating units where at least some of such maleic anhydride-type repeating units are either ring-opened or have been transformed into maleimide repeat units. The films formed from such copolymer compositions provide self imageable, low-k, thermally stable layers for use in microelectronic and optoelectronic devices.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 19, 2015
    Applicant: PROMERUS, LLC
    Inventors: Pramod KANDANARACHCHI, Larry F. RHODES
  • Publication number: 20140205948
    Abstract: Copolymers and compositions thereof useful for forming self-imageable films encompassing such copolymers are disclosed. Such copolymers encompass norbornene-type repeating units and maleic anhydride-type repeating units where at least some of such and maleic anhydride-type repeating units have been ring-opened. The films formed from such copolymer compositions provide self imageable, low-k, thermally stable layers for use in microelectronic and optoelectronic devices.
    Type: Application
    Filed: March 20, 2014
    Publication date: July 24, 2014
    Applicants: SUMITOMO BAKELITE CO., LTD., PROMERUS, LLC
    Inventors: OSAMU ONISHI, HARUO IKEDA, NOBUO TAGASHIRA, LARRY F. RHODES, PRAMOD KANDANARACHCHI
  • Patent number: 8753790
    Abstract: Embodiments in accordance with the present invention encompass self-imageable film forming compositions that comprise norbornene-type polymers and that can be formulated to be either positive tone imaging or negative tone. The films formed thereby are useful in the forming of microelectronic and optoelectronics devices.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: June 17, 2014
    Assignee: Promerus, LLC
    Inventors: Osamu Onishi, Haruo Ikeda, Larry Rhodes, Paul Evans, Edmund Elce, Andrew Bell, Chad Brick, Hendra Ng, Pramod Kandanarachchi
  • Patent number: 8748074
    Abstract: Polymers and compositions for forming self-imageable films encompassing such polymers that encompass norbornene-type repeating unit having at least one phenolic functionality and maleic anhydride-type repeating unit, which can be formulated to be either positive tone imaging or negative tone imaging. The films formed thereby are useful as self-imageable layers in the manufacture of microelectronic, such as semiconductor, and optoelectronic devices.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: June 10, 2014
    Assignees: Promerus, LLC, Sumitomo Bakelite Co., Ltd.
    Inventors: Osamu Onishi, Haruo Ikeda, Larry F. Rhodes, Pramod Kandanarachchi
  • Patent number: 8715900
    Abstract: Copolymers and compositions thereof useful for forming self-imageable films encompassing such copolymers are disclosed. Such copolymers encompass norbornene-type repeating units and maleic anhydride-type repeating units where at least some of such and maleic anhydride-type repeating units have been ring-opened. The films formed from such copolymer compositions provide self imageable, low-k, thermally stable layers for use in microelectronic and optoelectronic devices.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: May 6, 2014
    Assignees: Promerus, LLC, Sumitomo Bakelite Co., Ltd.
    Inventors: Osamu Onishi, Haruo Ikeda, Nobuo Tagashira, Larry Rhodes, Pramod Kandanarachchi
  • Publication number: 20140087293
    Abstract: Various cycloolefinic/maleic anhydride polymers containing maleimide pendant groups and compositions thereof useful for forming self-imageable films encompassing such copolymers are disclosed. Such polymers encompass norbornene-type repeating units containing maleimide groups and maleic anhydride-type repeating units where at least some of such maleic anhydride-type repeating units have been ring-opened. The films formed from such copolymer compositions provide self imageable, low-k, thermally stable layers for use in microelectronic and optoelectronic devices.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 27, 2014
    Applicant: Promerus, LLC
    Inventors: Pramod Kandanarachchi, Larry F. Rhodes
  • Patent number: 8663904
    Abstract: Embodiments in accordance with the present invention provide for non-self imageable norbornene-type polymers useful for immersion lithographic processes, methods of making such polymers, compositions employing such polymers and immersion lithographic processes that make use of such compositions. More specifically the embodiments of the present invention are related to norbornene-type polymers useful for forming top-coat layers for overlying photoresist layers in immersion lithographic process and the process thereof.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: March 4, 2014
    Assignee: Promerus, LLC
    Inventors: Pramod Kandanarachchi, Kazuyoshi Fujita, Steven Smith, Larry F Rhodes
  • Publication number: 20130323644
    Abstract: Embodiments in accordance with the present invention provide for non-self imagable norbornene-type polymers useful for immersion lithographic processes, methods of making such polymers, compositions employing such polymers and immersion lithographic processes that make use of such compositions. More specifically the embodiments of the present invention are related to norbornene-type polymers useful for forming top-coat layers for overlying photoresist layers in immersion lithographic process and the process thereof.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: Promerus, LLC
    Inventors: Pramod Kandanarachchi, Kazuyoshi Fujita, Steven Smith, Larry F. Rhodes
  • Patent number: 8541523
    Abstract: Embodiments in accordance with the present invention provide for non-self imageable norbornene-type polymers useful for immersion lithographic processes, methods of making such polymers, compositions employing such polymers and immersion lithographic processes that make use of such compositions. More specifically the embodiments of the present invention are related to norbornene-type polymers useful for forming top-coat layers for overlying photoresist layers in immersion lithographic process and the process thereof.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: September 24, 2013
    Assignee: Promerus, LLC
    Inventors: Pramod Kandanarachchi, Kazuyoshi Fujita, Steven Smith, Larry F. Rhodes
  • Publication number: 20130017488
    Abstract: Copolymers and compositions thereof useful for forming self-imageable films encompassing such copolymers are disclosed. Such copolymers encompass norbornene-type repeating units and maleic anhydride-type repeating units where at least some of such and maleic anhydride-type repeating units have been ring-opened. The films formed from such copolymer compositions provide self imageable, low-k, thermally stable layers for use in microelectronic and optoelectronic devices.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 17, 2013
    Applicants: Promerus LLC, Sumitomo Bakelite Co., Ltd.
    Inventors: Osamu Onishi, Haruo Ikeda, Nobuo Tagashira, Larry Rhodes, Pramod Kandanarachchi
  • Patent number: 8329838
    Abstract: Embodiments of the present invention relate generally to non-self imagable and imagable norbornene-type polymers useful for immersion lithographic processes, methods of making such polymers, compositions employing such polymers and the immersion lithographic processes that make use of such compositions. More specifically the embodiments of the present invention are related to norbornene-type polymers useful for forming imaging layer and top-coat layers for overlying such imaging layers in immersion lithographic process and the process thereof.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: December 11, 2012
    Assignee: Promerus LLC
    Inventors: Larry F. Rhodes, Chun Chang, Pramod Kandanarachchi, Lawrence D. Seger, Keita Ishiduka, Kotaro Endo, Tomoyuki Ando
  • Publication number: 20120129101
    Abstract: Polymers and compositions for forming self-imageable films encompassing such polymers that encompass norbornene-type repeating unit having at least one phenolic functionality and maleic anhydride-type repeating unit, which can be formulated to be either positive tone imaging or negative tone imaging. The films formed thereby are useful as self-imageable layers in the manufacture of microelectronic, such as semiconductor, and optoelectronic devices.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 24, 2012
    Applicants: Promerus LLC, Sumitomo Bakelite Co., Ltd.
    Inventors: Osamu Onishi, Haruo Ikeda, Larry F. Rhodes, Pramod Kandanarachchi
  • Publication number: 20120056183
    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: Application
    Filed: September 1, 2011
    Publication date: March 8, 2012
    Applicants: Promerus LLC, Merck Patent GmbH
    Inventors: David Christoph Mueller, Toby Cull, Pawel Miskiewicz, Miguel Carrasco-Orozco, Andrew Bell, Edmund Elce, Larry F. Rhodes, Kazuyoshi Fujita, Hendra Ng, Pramod Kandanarachchi, Steven Smith
  • Publication number: 20120056249
    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: Application
    Filed: September 1, 2011
    Publication date: March 8, 2012
    Applicants: Promerus LLC, Merck Patent GmbH
    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
  • Publication number: 20110244400
    Abstract: Embodiments in accordance with the present invention provide for non-self imageable norbornene-type polymers useful for immersion lithographic processes, methods of making such polymers, compositions employing such polymers and immersion lithographic processes that make use of such compositions. More specifically the embodiments of the present invention are related to norbornene-type polymers useful for forming top-coat layers for overlying photoresist layers in immersion lithographic process and the process thereof.
    Type: Application
    Filed: April 4, 2011
    Publication date: October 6, 2011
    Applicants: Promerus LLC, Sumitomo Bakelite Co., Ltd.
    Inventors: Pramod Kandanarachchi, Kazuyoshi Fujita, Steven Smith, Larry F. Rhodes
  • Publication number: 20110104614
    Abstract: Embodiments in accordance with the present invention encompass self-imageable film forming compositions that comprise norbornene-type polymers and that can be formulated to be either positive tone imaging or negative tone. The films formed thereby are useful in the forming of microelectronic and optoelectronics devices.
    Type: Application
    Filed: June 30, 2010
    Publication date: May 5, 2011
    Inventors: Osamu Onishi, Haruo Ikeda, Larry Rhodes, Paul Evans, Edmund Elce, Andrew Bell, Chad Brick, Hendra Ng, Pramod Kandanarachchi
  • Publication number: 20110065878
    Abstract: Embodiments of the present invention relate generally to non-self imagable and imagable norbornene-type polymers useful for immersion lithographic processes, methods of making such polymers, compositions employing such polymers and the immersion lithographic processes that make use of such compositions. More specifically the embodiments of the present invention are related to norbornene-type polymers useful for forming imaging layer and top-coat layers for overlying such imaging layers in immersion lithographic process and the process thereof.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 17, 2011
    Applicants: PROMERUS LLC, TOKYO OHKA KOGYO CO., LTD.
    Inventors: Larry F. Rhodes, Chun Chang, Pramod Kandanarachchi, Lawrence D. Seger, Keita Ishiduka, Kotaro Endo, Tomoyuki Ando
  • Publication number: 20110009578
    Abstract: A method of controlling the molecular weight of poly(cyclic) olefin (norbornene-type) polymers and activating the polymerization thereof with a single material is provided. Such method include adding a chain transfer/activating agent to a mixture of monomer(s), catalyst, solvent and an optional cocatalyst and polymerizing the mixture to form a polymer. It is shown that the amount of chain transfer/activating agent in the mixture can serve to control the molecular weight of the resulting polymer, its percent conversion or both, and in some embodiments the optical density of the resulting polymer.
    Type: Application
    Filed: July 19, 2010
    Publication date: January 13, 2011
    Applicant: PROMERUS LLC
    Inventors: Larry F. Rhodes, Steven Smith, Pramod Kandanarachchi, Chun Chang, Patrick Bradley
  • Patent number: 7799883
    Abstract: Embodiments of the present invention relate generally to non-self imageable and imageable norbornene-type polymers useful for immersion lithographic processes, methods of making such polymers, compositions employing such polymers and the immersion lithographic processes that make use of such compositions. More specifically the embodiments of the present invention are related to norbornene-type polymers useful for forming imaging layer and top-coat layers for overlying such imaging layers in immersion lithographic process and the process thereof.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: September 21, 2010
    Assignee: Promerus LLC
    Inventors: Larry F. Rhodes, Chun Chang, Pramod Kandanarachchi, Lawrence D. Seger, Keita Ishiduka, Kotaro Endo, Tomoyuki Ando
  • Patent number: 7759439
    Abstract: A method of controlling the molecular weight of poly(cyclic)olefin (norbornene-type) polymers and activating the polymerization thereof with a single material is provided. Such method include adding a chain transfer/activating agent to a mixture of monomer(s), catalyst, solvent and an optional cocatalyst and polymerizing the mixture to form a polymer. It is shown that the amount of chain transfer/activating agent in the mixture can serve to control the molecular weight of the resulting polymer, its percent conversion or both, and in some embodiments the optical density of the resulting polymer.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 20, 2010
    Assignee: Promerus LLC
    Inventors: Larry F. Rhodes, Steven Smith, Pramod Kandanarachchi, Chun Chang, Patrick Bradley