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).
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Patent number: 9952507Abstract: 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: GrantFiled: February 12, 2016Date of Patent: April 24, 2018Assignee: PROMERUS, LLCInventors: Pramod Kandanarachchi, Larry Rhodes, Hendra Ng, Wei Zhang, Brian Knapp
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Patent number: 9944730Abstract: Embodiments encompassing a series of compositions containing polymers of norbornadiene and maleic anhydride monomers which are useful in forming a variety of photopatternable structures are disclosed and claimed. The compositions are useful as permanent dielectric materials. More specifically, embodiments encompassing compositions containing a series of ter- and tetrapolymers of a variety of norbornadiene, maleic anhydride, maleimide and norbornene-type cycloolefinic monomers in which maleic anhydride is fully or partially hydrolyzed (i.e., ring opened and fully or partially esterified), and a photoactive compound are disclosed, which are useful in forming permanent dielectric materials having utility in a variety of electronic material applications, among various other uses.Type: GrantFiled: October 12, 2017Date of Patent: April 17, 2018Assignee: PROMERUS, LLCInventors: Larry F Rhodes, Pramod Kandanarachchi
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Publication number: 20180044449Abstract: Embodiments encompassing a series of compositions containing polymers of norbornadiene and maleic anhydride monomers which are useful in forming a variety of photopatternable structures are disclosed and claimed. The compositions are useful as permanent dielectric materials. More specifically, embodiments encompassing compositions containing a series of ter- and tetrapolymers of a variety of norbornadiene, maleic anhydride, maleimide and norbornene-type cycloolefinic monomers in which maleic anhydride is fully or partially hydrolyzed (i.e., ring opened and fully or partially esterified), and a photoactive compound are disclosed, which are useful in forming permanent dielectric materials having utility in a variety of electronic material applications, among various other uses.Type: ApplicationFiled: October 12, 2017Publication date: February 15, 2018Applicant: PROMERUS, LLCInventors: LARRY F. RHODES, PRAMOD KANDANARACHCHI
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Patent number: 9834627Abstract: Embodiments encompassing a series of compositions containing polymers of norbornadiene and maleic anhydride monomers which are useful in forming a variety of photopatternable structures are disclosed and claimed. The compositions are useful as permanent dielectric materials. More specifically, embodiments encompassing compositions containing a series of ter- and tetrapolymers of a variety of norbornadiene, maleic anhydride, maleimide and norbornene-type cycloolefinic monomers in which maleic anhydride is fully or partially hydrolyzed (i.e., ring opened and fully or partially esterified), and a photoactive compound are disclosed, which are useful in forming permanent dielectric materials having utility in a variety of electronic material applications, among various other uses.Type: GrantFiled: December 30, 2016Date of Patent: December 5, 2017Assignee: PROMERUS, LLCInventors: Larry F Rhodes, Pramod Kandanarachchi
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Publication number: 20170190810Abstract: Embodiments encompassing a series of compositions containing polymers of norbornadiene and maleic anhydride monomers which are useful in forming a variety of photopatternable structures are disclosed and claimed. The compositions are useful as permanent dielectric materials. More specifically, embodiments encompassing compositions containing a series of ter- and tetrapolymers of a variety of norbornadiene, maleic anhydride, maleimide and norbornene-type cycloolefinic monomers in which maleic anhydride is fully or partially hydrolyzed (i.e., ring opened and fully or partially esterified), and a photoactive compound are disclosed, which are useful in forming permanent dielectric materials having utility in a variety of electronic material applications, among various other uses.Type: ApplicationFiled: December 30, 2016Publication date: July 6, 2017Applicant: PROMERUS, LLCInventors: LARRY F RHODES, PRAMOD KANDANARACHCHI
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Publication number: 20170153546Abstract: Embodiments encompassing a series of compositions containing photoacid generator (PAG) and a base are disclosed and claimed. The compositions are useful as permanent dielectric materials. More specifically, embodiments encompassing compositions containing a series of copolymers of a variety of norbornene-type cycloolefinic monomers and maleic anhydride in which maleic anhydride is fully or partially hydrolyzed (i.e., ring opened and fully or partially esterified), PAG and a base, which are useful in forming permanent dielectric materials having utility in a variety of electronic material applications, among various other uses, are disclosed.Type: ApplicationFiled: November 30, 2016Publication date: June 1, 2017Applicant: PROMERUS, LLCInventor: PRAMOD KANDANARACHCHI
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Patent number: 9647222Abstract: 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: GrantFiled: August 11, 2015Date of Patent: May 9, 2017Assignees: Merck Patent GmbH, Promerus LLCInventors: 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
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Patent number: 9647213Abstract: 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: GrantFiled: August 11, 2015Date of Patent: May 9, 2017Assignees: Merck Patent GmbH, Promerus LLCInventors: David Christoph Müller, Pawel Miskiewicz, Toby Cull, Piotr Wierzchowiec, Andrew Bell, Edmund Elce, Larry F. Rhodes, Kazuyoshi Fujita, Hendra Ng, Pramod Kandanarachchi, Steven Smith
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Patent number: 9583713Abstract: 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: GrantFiled: September 1, 2011Date of Patent: February 28, 2017Assignees: Merck Patent GmbH, Promerus LLCInventors: David Christoph Mueller, Pawel Miskiewicz, Toby Cull, Piotr Wierzchowiec, Andrew Bell, Edmund Elce, Larry F. Rhodes, Kazuyoshi Fujita, Hendra Ng, Pramod Kandanarachchi, Steven Smith
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Patent number: 9527943Abstract: There is provided a polymer including a structural unit represented by the following Formula (1a), a structural unit represented by the following Formula (1b) and a structural unit represented by the following Formula (1c) (In Formula (1a), n represents 0, 1 or 2. Each of R1, R2, R3 and R4 independently represents a hydrogen atom or an organic group having 1 to 10 carbon atoms. In Formula (1c), R5 represents an organic group having 1 to 10 carbon atoms.Type: GrantFiled: March 6, 2015Date of Patent: December 27, 2016Assignees: SUMITOMO BAKELITE CO., LTD., PROMERUS, LLCInventors: Osamu Onishi, Haruo Ikeda, Larry F. Rhodes, Pramod Kandanarachchi, Hugh Burgoon
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Patent number: 9422376Abstract: 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 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: GrantFiled: September 5, 2014Date of Patent: August 23, 2016Assignee: SUMITOMO BAKELITE CO., LTD.Inventors: Pramod Kandanarachchi, Larry F. Rhodes, Osamu Onishi
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Publication number: 20160238932Abstract: 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: ApplicationFiled: February 12, 2016Publication date: August 18, 2016Inventors: PRAMOD KANDANARACHCHI, LARRY RHODES, HENDRA NG, WEI ZHANG, BRIAN KNAPP
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Patent number: 9366956Abstract: 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: GrantFiled: March 20, 2014Date of Patent: June 14, 2016Assignees: PROMERUS, LLC, SUMITOMO BAKELITE CO., LTD.Inventors: Osamu Onishi, Haruo Ikeda, Nobuo Tagashira, Larry F Rhodes, Pramod Kandanarachchi
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Patent number: 9291901Abstract: 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: GrantFiled: September 5, 2014Date of Patent: March 22, 2016Assignee: SUMITOMO BAKELITE CO., LTD.Inventors: Pramod Kandanarachchi, Larry F. Rhodes
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Patent number: 9261782Abstract: 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: GrantFiled: September 24, 2013Date of Patent: February 16, 2016Assignee: PROMERUS, LLCInventors: Pramod Kandanarachchi, Larry F. Rhodes
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Publication number: 20150372246Abstract: 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: ApplicationFiled: August 11, 2015Publication date: December 24, 2015Inventors: 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
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Publication number: 20150349263Abstract: 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: ApplicationFiled: August 11, 2015Publication date: December 3, 2015Inventors: David Christoph Müller, Pawel Miskiewickz, Toby Cull, Piotr Wierzchowiec, Andrew Bell, Edmund Elce, Larry F. Rhodes, Kazuyoshi Fujita, Hendra Ng, Pramod Kandanarachchi, Steven Smith
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Patent number: 9175123Abstract: 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: GrantFiled: September 1, 2011Date of Patent: November 3, 2015Assignees: Merck Patent GmbH, Promerus LLCInventors: 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
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Publication number: 20150252132Abstract: There is provided a polymer including a structural unit represented by the following Formula (1a), a structural unit represented by the following Formula (1b) and a structural unit represented by the following Formula (1c) (In Formula (1a), n represents 0, 1 or 2. Each of R1, R2, R3 and R4 independently represents a hydrogen atom or an organic group having 1 to 10 carbon atoms. In Formula (1c), R5 represents an organic group having 1 to 10 carbon atoms.Type: ApplicationFiled: March 6, 2015Publication date: September 10, 2015Applicants: SUMITOMO BAKELITE CO., LTD., PROMERUS, LLCInventors: Osamu Onishi, Haruo Ikeda, Larry F. Rhodes, Pramod Kandanarachchi, Hugh Burgoon
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Publication number: 20150079506Abstract: 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 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: ApplicationFiled: September 5, 2014Publication date: March 19, 2015Applicants: SUMITOMO BAKELITE CO., LTD, PROMERUS, LLCInventors: PRAMOD KANDANARACHCHI, LARRY F. RHODES, OSAMU ONISHI