Patents by Inventor Richard Anthony DiPietro

Richard Anthony DiPietro 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: 20070298176
    Abstract: A molding composition and a method of forming an pattern. The method includes forming on a substrate a molding layer of a molding composition of aromatic divinyl ethers; pressing the template into the molding layer, the template having a relief pattern, the molding layer filling voids in the relief pattern, the template not contacting the substrate; exposing the molding layer to actinic radiation, the actinic radiation converting the molding layer to a cured molding layer having thick and thin regions corresponding to the relief pattern; removing the template; filling the thin regions of the relief pattern with a backfill material; removing regions of the molding layer not protected by the backfill material to expose regions of the substrate; forming trenches in the exposed regions of the substrate; and removing any remaining molding layer and backfill material. A transfer layer may be used between the molding layer and the substrate.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Inventors: Richard Anthony DiPietro, Mark Whitney Hart, Frances Anne Houle, Hiroshi Ito
  • Publication number: 20070275324
    Abstract: The present invention relates to a radiation sensitive photoresist composition. The composition comprises a polymer comprising at least two monomers. The first monomer has an acid cleavable tertiary ester group. The second monomer is an acidic monomer. The acid cleavable ester group of the polymer has a surprisingly low activation energy which results in improved resist images in lithographic processes.
    Type: Application
    Filed: May 26, 2006
    Publication date: November 29, 2007
    Inventors: Robert David Allen, Richard Anthony DiPietro, Ratnam Sooriyakumaran, Hoa D. Truong
  • Patent number: 7297811
    Abstract: The invention provides alkene fluoroalkanol and fluorinated polyol precursors to fluoroalkanol-substituted ?,?-unsaturated esters. The fluoroalkanol-substituted ?,?-unsaturated esters are olefins that can be readily polymerized to provide fluoroalkanol-substituted polymers useful in lithographic photoresist compositions. Also provided are methods for synthesizing the alkene fluoroalkanol and fluorinated polyol precursors.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: November 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Gregory Breyta, Richard Anthony DiPietro, Daniel Joseph Dawson
  • Publication number: 20070238317
    Abstract: A method of forming low dielectric contrast structures by imprinting a silsesquioxane based polymerizable composition. The imprinting composition including: one or more polyhedral silsesquioxane oligomers each having one or more polymerizable groups, wherein each of the one or more polymerizable group is bound to a different silicon atom of the one or more polyhedral silsesquioxane oligomers; and one or more polymerizable diluents, the diluents constituting at least 50% by weight of the composition.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 11, 2007
    Applicant: International Business Machines Corporation
    Inventors: Robert David Allen, Richard Anthony DiPietro, Geraud Jean-Michel Dubois, Mark Whitney Hart, Robert Dennis Miller, Ratnam Sooriyakumaran
  • Patent number: 7193023
    Abstract: Polymers containing an acetal or ketal linkage and their use in lithographic photoresist compositions, particularly in chemical amplification photoresists, are provided. The polymer is prepared from at least one first olefinic monomer containing an acetal or ketal linkage, the acid-catalyzed cleavage of which renders the polymer soluble in aqueous base; and at least one second olefinic monomer selected from (i) an olefinic monomer containing a pendant fluorinated hydroxyalkyl group RH, (ii) an olefinic monomer containing a pendant fluorinated alkylsulfonamide group RS, and (iii) combinations thereof. The acetal or ketal linkage may be contained within an acid-cleavable substituent RCL in the first olefinic monomer. A method for using the photoresist compositions containing these polymers in preparing a patterned substrate is also provided in which the polymer is rendered soluble in aqueous base at a temperature of less than about 100° C.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: March 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Robert David Allen, Gregory Breyta, Phillip Joe Brock, Richard Anthony DiPietro, Ratnam Sooriyakumaran, Hoa D. Truong, Gregory Michael Wallraff
  • Patent number: 6794459
    Abstract: The present invention relates to cyclic polymers and their use in photolithographic applications. The cyclic polymers contain a pendant acid labile functional group and a functional group containing a protected hydroxyl moiety. The polymers are post modified by deprotecting the pendant hydroxyl moiety and reacting the deprotected hydroxyl containing moiety with a coreactant. The post-functionalized polymers find application in chemically amplified photoresist compositions.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: September 21, 2004
    Assignees: Sumitomo Bakelite Co., Ltd., International Business Machines Corp.
    Inventors: Saikumar Jayaraman, George Martin Benedikt, Larry Funderburk Rhodes, Richard Vicari, Robert David Allen, Richard Anthony DiPietro, Ratnam Sooriyakumaran, Thomas Wallow
  • Patent number: 6723486
    Abstract: The present invention relates to a radiation sensitive photoresist composition comprising a photoacid initiator and a polycyclic polymer comprising repeating units that contain pendant acid labile groups. Upon exposure to an imaging radiation source the photoacid initiator generates an acid which cleaves the pendant acid labile groups effecting a polarity change in the polymer. The polymer is rendered soluble in an aqueous base in the areas exposed to the imaging source.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: April 20, 2004
    Assignees: Sumitomo Bakelite Co., Ltd., International Business Machines Corp.
    Inventors: Brian L. Goodall, Saikumar Jayaraman, Robert A. Shick, Larry F. Rhodes, Robert David Allen, Richard Anthony DiPietro, Thomas Wallow
  • Patent number: 6653048
    Abstract: Polymerizable monomers having silicon containing groups that are transparent at 193 nm; and ethylenically unsaturated group are provided. Polymers from these monomers can be used in processes for forming sub-100 nm images with a chemically amplified, radiation sensitive bilayer resist. The bilayer resist is disposed on a substrate and comprises (i) a top imaging layer comprising a radiation sensitive acid generator and (ii) an organic underlayer. The bilayer resist can be used in the manufacturing of integrated circuits.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: November 25, 2003
    Assignee: International Business Machines Corp.
    Inventors: Phillip Joe Brock, Richard Anthony DiPietro, Donald Clifford Hofer, Ratnam Sooriyakumaran, Gregory Michael Wallraff
  • Patent number: 6643093
    Abstract: The magnetic surfaces of the magnetoresistive or magnetic tunnel junction and inductive write head and magnetic recording disk of a hard disk drive are protected from corrosion by inserting a vapor phase corrosion inhibitor (VPCI) package into the disk drive for providing additives in the vapor phase of the disk drive enclosure to maintain an equilibrium and renewable adsorbed film of metal passivators on the head and disk surfaces. The VPCI package includes at least one vapor phase corrosion inhibitor (VPCI) embedded in a polymeric matrix.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: November 4, 2003
    Assignee: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: Charles Allan Brown, Richard Anthony DiPietro, Thomas Edward Karis, Herman Russell Wendt, Run-Han Wang
  • Publication number: 20030142438
    Abstract: The magnetic surfaces of the magnetoresistive or magnetic tunnel junction and inductive write head and magnetic recording disk of a hard disk drive are protected from corrosion by inserting a vapor phase corrosion inhibitor (VPCI) package into the disk drive for providing additives in the vapor phase of the disk drive enclosure to maintain an equilibrium and renewable adsorbed film of metal passivators on the head and disk surfaces. The VPCI package includes at least one vapor phase corrosion inhibitor (VPCI) embedded in a polymeric matrix.
    Type: Application
    Filed: January 15, 2002
    Publication date: July 31, 2003
    Inventors: Charles Allan Brown, Richard Anthony DiPietro, Thomas Edward Karis, Herman Russell Wendt, Run-Han Wang
  • Patent number: 6451945
    Abstract: The present invention relates to cyclic polymers and their use in photolithographic applications. The cyclic polymers contain a pendant acid labile functional group and a functional group containing a protected hydroxyl moiety. The polymers are post modified by deprotecting the pendant hydroxyl moiety and reacting the deprotected hydroxyl containing moiety with a coreactant. The post-functionalized polymers find application in chemically amplified photoresist compositions.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: September 17, 2002
    Assignees: The B.F. Goodrich Company, International Business Machines Corp.
    Inventors: Saikumar Jayaraman, George Martin Benedikt, Larry Funderburk Rhodes, Richard Vicari, Robert David Allen, Richard Anthony DiPietro, Ratnam Sooriyakumaran, Thomas Wallow
  • Publication number: 20020127490
    Abstract: Polymerizable monomers having silicon containing groups that are transparent at 193 nm; and ethylenically unsaturated group are provided. Polymers from these monomers can be used in processes for forming sub-100 nm images with a chemically amplified, radiation sensitive bilayer resist. The bilayer resist is disposed on a substrate and comprises (i) a top imaging layer comprising a radiation sensitive acid generator and (ii) an organic underlayer. The bilayer resist can be used in the manufacturing of integrated circuits.
    Type: Application
    Filed: May 6, 2002
    Publication date: September 12, 2002
    Applicant: International Business Machines Corporation
    Inventors: Phillip Joe Brock, Richard Anthony DiPietro, Donald Clifford Hofer, Ratnam Sooriyakumaran, Gregory Michael Wallraff
  • Publication number: 20020128408
    Abstract: The present invention relates to a radiation sensitive photoresist composition comprising a photoacid initiator and a polycyclic polymer comprising repeating units that contain pendant acid labile groups. Upon exposure to an imaging radiation source the photoacid initiator generates an acid which cleaves the pendant acid labile groups effecting a polarity change in the polymer. The polymer is rendered soluble in an aqueous base in the areas exposed to the imaging source.
    Type: Application
    Filed: May 8, 2001
    Publication date: September 12, 2002
    Inventors: Brian L. Goodall, Saikumar Jayaraman, Robert A. Shick, Larry F. Rhodes, Robert David Allen, Richard Anthony DiPietro, Thomas Wallow
  • Patent number: 6444408
    Abstract: Polymerizable monomers having silicon containing groups that are transparent at 193 nm; and ethylenically unsaturated group are provided. Polymers from these monomers can be used in processes for forming sub-100 nm images with a chemically amplified, radiation sensitive bilayer resist. The bilayer resist is disposed on a substrate and comprises (i) a top imaging layer comprising a radiation sensitive acid generator and (ii) an organic underlayer. The bilayer resist can be used in the manufacturing of integrated circuits.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: September 3, 2002
    Assignee: International Business Machines Corporation
    Inventors: Phillip Joe Brock, Richard Anthony DiPietro, Donald Clifford Hofer, Ratnam Sooriyakumaran, Gregory Michael Wallraff
  • Patent number: 6333141
    Abstract: The invention relates to a process for forming an integrated circuit device comprising (i) a substrate; (ii) metallic circuit lines positioned on the substrate and (iii) a dielectric material positioned on the circuit lines. The dielectric material comprises porous organic polysilica.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: December 25, 2001
    Assignee: International Business Machines Corporation
    Inventors: Kenneth Raymond Carter, Richard Anthony Dipietro, Craig Jon Hawker, James Lupton Hedrick, Victor YeeWay Lee, Robert Dennis Miller, Willi Volksen, Do Yeung Yoon
  • Patent number: 6251560
    Abstract: Acid-catalyzed positive photoresist compositions which are imageable with 193 nm radiation (and possibly other radiation) and are developable to form photoresist structures of improved development characteristics and improved etch resistance are enabled by the use of resist compositions containing cyclic olefin polymer having a cyclic olefin monomer having a lactone moiety, the monomer having no oxygen atoms intervening between the lactone moiety and a ring of the cyclic olefin. Preferred lactone moieties are spirolactones (having a 5 or 6 membered ring) directly to a cyclic olefin ring.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: June 26, 2001
    Assignee: International Business Machines Corporation
    Inventors: Thomas I. Wallow, Robert D. Allen, Phillip Joe Brock, Richard Anthony DiPietro, Hiroshi Ito, Hoa Dao Truong, Pushkara Rao Varanasi
  • Patent number: 6177228
    Abstract: The present invention relates to a radiation-sensitive resist composition comprising a radiation-sensitive acid generator and a copolymer binder formed by the reaction of (a) an acrylate or methacrylate monomer having a photogenerated acid cleavable substituent and (b) an acrylate or methacrylate monomer having a polar non photoacid cleavable substituent.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: January 23, 2001
    Assignee: International Business Machines Corporation
    Inventors: Robert David Allen, Richard Anthony DiPietro, Ratnam Sooriyakumaran, Thomas I. Wallow, Gregory Michael Wallraff
  • Patent number: 6165673
    Abstract: The invention relates to a polymeric, radiation-sensitive resist composition comprising (i) iodonium sulfonate radiation sensitive acid generator; (ii) a polymer; and (iii) an acid labile compound.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: December 26, 2000
    Assignee: International Business Machines Corporation
    Inventors: Gregory Breyta, Richard Anthony DiPietro, Donald Clifford Hofer, Hiroshi Ito, Robert David Allen, Juliann Opitz, Thomas I. Wallow
  • Patent number: 6165678
    Abstract: A novel radiation-sensitive lithographic photoresist composition is provided which has improved sensitivity and resolution. The composition comprises a photosensitive acid generator and an acrylate or methacrylate copolymer. The copolymer contains first monomeric units having polar pendant groups and second monomeric units containing photoacid-cleavable ester groups. The polar pendant groups preferably comprise C.sub.6 -C.sub.12 alicyclic substituents containing a polar moiety R*, wherein the alicyclic substituents are bound through a linker moiety to the polymer backbone. Other monomeric units may be included as well. A process for using the composition to generate resist images on a substrate, i.e., in the manufacture of integrated circuits or the like.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: December 26, 2000
    Assignee: International Business Machines Corporation
    Inventors: Robert David Allen, Richard Anthony DiPietro, Ratnam Sooriyakumaran, Thomas I. Wallow, Gregory Michael Wallraff
  • Patent number: 6153725
    Abstract: The present invention is directed to methods of fabricating electrically conducting polymers and precursors thereof in which the polymer has a controlled level of aggregation and morphology. This is done by controlling the rate of polymerization and the rate at which the polymer precipitates from solution during the polymerization reaction. An additive is added to the polymerization medium, said additive increasing or decreasing the rate at which the polymer precipitates from the reaction medium. When said additive is a second organic solvent, the polymerization reaction proceeds homogeneously for a longer period of time than does the corresponding polymerization reaction which does not include said additive. Control of the polymerization kinetics allows control of the morphology for the isolated polymer and in turn control of the properties of these polymers.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: November 28, 2000
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Richard Anthony DiPietro