Patents by Inventor Larry Rhodes

Larry Rhodes 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: 20060041093
    Abstract: Polymeric compositions for semiconductor applications comprising 10 to 99 wt. % of norbornene-type cycloolefin monomers represented by one or more of Formulae I(a), I(b), and optionally I(c) and/or I(d), 0.0005 to 0.5 wt. % of an addition polymerization procatalyst, and optionally: up to 0.5 wt. % of a cocatalyst, up to 59 wt. % of a crosslinking monomer, up to 50 wt. % of a viscosifier, up to 20 wt. % of a thixotropic additive(s), up to 80 wt. % of a filler, up to 10 wt. % of an antioxidant, and up to 0.6 wt. % of an antioxidant synergist, the total of the components of the formulation adding up to 100%. Such formulations are mass polymerized, or cured, to form polymeric compositions that have properties desirable for a variety of specific electronic, microelectronic, optoelectronic and micro-optoelectronic applications such as die attach adhesives, underfill materials, prepreg binders, encapsulants, protective layers, and other related applications.
    Type: Application
    Filed: August 16, 2005
    Publication date: February 23, 2006
    Inventors: Ramakrisha Ravikiran, Hendra Ng., Rajesh Puthenkovilakom, Linda Zhang, Dino Amoroso, Brian Knapp, Andrew Bell, Larry Rhodes
  • Publication number: 20060025540
    Abstract: The present invention relates to polycyclic polymers, methods for producing polycyclic polymers, and methods for their use as photoresists in the manufacture of integrated circuits. In one embodiment, the present invention relates to photoresist compositions formed from the polymerization of at least one halogenated polycyclic monomer or hydrohalogenated polycyclic monomer. In another embodiment, the present invention relates to photoresist compositions formed from the co-polymerization of at least one halogenated polycyclic monomer or hydrohalogenated polycyclic monomer with at least one non-halogenated polycyclic monomer. Additionally, the present invention relates to methods by which to post-treat such photoresist compositions in order to obtain one or more of: (1) a reduction in optical density of the polymer composition; and (2) a reduction in the amount of residual metal and/or monomer in the polymer composition.
    Type: Application
    Filed: September 7, 2005
    Publication date: February 2, 2006
    Inventors: Larry Rhodes, Richard Vicari, Leah Langsdorf, Andrew Sobek, Edwin Boyd, Brian Bennett
  • Publication number: 20050192409
    Abstract: Embodiments in accordance with the present invention encompass polymers having at least one norbornene-type repeating unit derived from a norbornene-type monomer having a polyhedral oligosilsesquioxane pendant group. Such polymers, are formed by addition polymerizations that employ one of a neutral or cationic palladium catalyst or a neutral nickel catalyst. Such polymers are useful for a variety of applications such as a positive tone or negative tone photodefinable material, a low-k dielectric constant material, an etch selective layer, a sacrificial material or the like. In addition, embodiments of the present invention include devices formed using such polymers.
    Type: Application
    Filed: February 10, 2005
    Publication date: September 1, 2005
    Inventors: Larry Rhodes, Larry Seger, Ramakrishna Ravikiran, Edmund Elce, Robert Shick, John-Henry Lipian
  • Publication number: 20050186502
    Abstract: The present invention relates to a directly photoimageable polymer composition (DPPC) and methods for its use in forming microelectronic and optoelectronic devices. Such DPPC encompasses a polymer having at least one norbornene-type repeat unit having a pendant silyl containing radical and at least one norbornene-type repeat unit having an acrylate containing radical.
    Type: Application
    Filed: January 27, 2005
    Publication date: August 25, 2005
    Inventors: Edmund Elce, Ramakrishna Ravikiran, Larry Rhodes, Robert Shick, Saikumar Jayaraman
  • Publication number: 20050153233
    Abstract: The disclosed invention relates to novel norborne-type monomers containing pendent lactone or sultone groups. The invention also relates to norborne-type polymers and copolymers containing pendent lactone or sultone groups. These polymers and copolymers are useful in making photoimagable materials. The photoimagable materials are particularly suitable for use in photoresist compositions useful in 193 and 157 nm photolithography.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 14, 2005
    Inventors: Xiaoming Wu, Larry Rhodes, Lawrence Seger
  • Publication number: 20050153240
    Abstract: The disclosed invention relates to novel norborne-type monomers containing pendent lactone or sultone groups. The invention also relates to norborne-type polymers and copolymers containing pendent lactone or sultone groups. These polymers and copolymers are useful in making photoimagable materials. The photoimagable materials are particularly suitable for use in photoresist compositions useful in 193 and 157 nm photolithography.
    Type: Application
    Filed: January 10, 2005
    Publication date: July 14, 2005
    Inventors: Xiaoming Wu, Larry Rhodes, Lawrence Seger
  • Publication number: 20050019638
    Abstract: A polymer comprising polycyclic repeating units having recurring ion conducting groups and optional crosslinkable groups is disclosed. The present invention provides the capability of tailoring polymers to impart unique properties to membranes fabricated from the polymers. Membranes comprising the polymers and methods for preparing the membranes and their use in ion conducting membranes, particularly in fuel cells, are also provided.
    Type: Application
    Filed: June 4, 2004
    Publication date: January 27, 2005
    Inventors: R. Ravikiran, Xiaoming Wu, Larry Rhodes, Robert Shick, Hiroko Nakano, Hirotaka Nonaka, Huabin Wang, Saikumar Jayaraman, Robert Duff, John-Henry Lipian