Patents by Inventor Kathryn Guarini

Kathryn Guarini 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: 8901741
    Abstract: A method for forming an interconnect structure with nanocolumnar intermetal dielectric is described involving the construction of an interconnect structure using a solid dielectric, and introducing a regular array of vertically aligned nanoscale pores through stencil formation and etching to form a hole array and subsequently pinching off the tops of the hole array with a cap dielectric. Variations of the method and means to construct a multilevel nanocolumnar interconnect structure are also described.
    Type: Grant
    Filed: June 23, 2012
    Date of Patent: December 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Matthew E. Colburn, Satya V. Nitta, Sampath Purushothaman, Charles Black, Kathryn Guarini
  • Patent number: 8358011
    Abstract: A method for forming an interconnect structure with nanocolumnar intermetal dielectric is described involving the construction of an interconnect structure using a solid dielectric, and introducing a regular array of vertically aligned nanoscale pores through stencil formation and etching to form a hole array and subsequently pinching off the tops of the hole array with a cap dielectric. Variations of the method and means to construct a multilevel nanocolumnar interconnect structure are also described.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: January 22, 2013
    Assignee: International Business Machines Corporation
    Inventors: Matthew E. Colburn, Satya V. Nitta, Sampath Purushothaman, Charles Black, Kathryn Guarini
  • Publication number: 20130009315
    Abstract: A method for forming an interconnect structure with nanocolumnar intermetal dielectric is described involving the construction of an interconnect structure using a solid dielectric, and introducing a regular array of vertically aligned nanoscale pores through stencil formation and etching to form a hole array and subsequently pinching off the tops of the hole array with a cap dielectric. Variations of the method and means to construct a multilevel nanocolumnar interconnect structure are also described.
    Type: Application
    Filed: September 7, 2007
    Publication date: January 10, 2013
    Inventors: Matthew E. Colburn, Satya V. Nitta, Sampath Purushothaman, Charles Black, Kathryn Guarini
  • Publication number: 20120261823
    Abstract: A method for forming an interconnect structure with nanocolumnar intermetal dielectric is described involving the construction of an interconnect structure using a solid dielectric, and introducing a regular array of vertically aligned nanoscale pores through stencil formation and etching to form a hole array and subsequently pinching off the tops of the hole array with a cap dielectric. Variations of the method and means to construct a multilevel nanocolumnar interconnect structure are also described.
    Type: Application
    Filed: June 23, 2012
    Publication date: October 18, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Matthew E. Colburn, Satya V. Nitta, Sampath Purushothaman, Charles Black, Kathryn Guarini
  • Publication number: 20080096330
    Abstract: An integrated semiconductor structure containing at least one device formed upon a first crystallographic surface that is optimal for that device, while another device is formed upon a second different crystallographic surface that is optimal for the other device is provided. The method of forming the integrated structure includes providing a bonded substrate including at least a first semiconductor layer of a first crystallographic orientation and a second semiconductor layer of a second different crystallographic orientation. A portion of the bonded substrate is protected to define a first device area, while another portion of the bonded substrate is unprotected. The unprotected portion of the bonded substrate is then etched to expose a surface of the second semiconductor layer and a semiconductor material is regrown on the exposed surface. Following planarization, a first semiconductor device is formed in the first device region and a second semiconductor device is formed on the regrown material.
    Type: Application
    Filed: December 18, 2007
    Publication date: April 24, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bruce Doris, Kathryn Guarini, Meikei Ieong, Shreesh Narasimha, Kern Rim, Jeffrey Sleight, Min Yang
  • Publication number: 20080042140
    Abstract: A three dimensional (3D) integrated circuit (IC), 3D IC chip and method of fabricating a 3D IC chip. The chip includes multiple layers of circuits, e.g., silicon insulator (SOI) CMOS IC layers, each including circuit elements. The layers may be formed in parallel and one layer attached to another to form a laminated 3D chip.
    Type: Application
    Filed: August 30, 2007
    Publication date: February 21, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPERATION
    Inventors: Syed Alam, Ibrahim Elfadel, Kathryn Guarini, Meikei Ieong, Prabhakar Kudva, David Kung, Mark Lavin, Arifur Rahman
  • Publication number: 20070287224
    Abstract: A three dimensional (3D) integrated circuit (IC), 3D IC chip and method of fabricating a 3D IC chip. The chip includes multiple layers of circuits, e.g., silicon insulator (SOI) CMOS IC layers, each including circuit elements. The layers may be formed in parallel and one layer attached to another to form a laminated 3D chip.
    Type: Application
    Filed: April 19, 2007
    Publication date: December 13, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPERATION
    Inventors: Syed Alam, Ibrahim Elfadel, Kathryn Guarini, Meikei Ieong, Prabhakar Kudva, David Kung, Mark Lavin, Arifur Rahman
  • Publication number: 20070218621
    Abstract: A structure and method of fabrication for PFET devices in a compressively strained Ge layer is disclosed. The fabrication method of such devices is compatible with standard CMOS technology and it is fully scalable. The processing includes selective epitaxial depositions of an over 50% Ge content buffer layer, a pure Ge layer, and a SiGe top layer. Fabricated buried channel PMOS devices hosted in the compressively strained Ge layer show superior device characteristics relative to similar Si devices.
    Type: Application
    Filed: April 10, 2007
    Publication date: September 20, 2007
    Applicant: International Business Machines Corporation
    Inventors: Huiling Shang, Meikei Leong, Jack Chu, Kathryn Guarini
  • Patent number: 7268432
    Abstract: A method for forming an interconnect structure with nanocolumnar intermetal dielectric is described involving the construction of an interconnect structure using a solid dielectric, and introducing a regular array of vertically aligned nanoscale pores through stencil formation and etching to form a hole array and subsequently pinching off the tops of the hole array with a cap dielectric. Variations of the method and means to construct a multilevel nanocolumnar interconnect structure are also described.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: September 11, 2007
    Assignee: International Business Machines Corporation
    Inventors: Matthew E. Colburn, Satya V. Nitta, Sampath Purushothaman, Charles Black, Kathryn Guarini
  • Publication number: 20070138556
    Abstract: A double-gate transistor has front (upper) and back gates aligned laterally by a process of forming symmetric sidewalls in proximity to the front gate and then oxidizing the back gate electrode at a temperature of at least 1000 degrees for a time sufficient to relieve stress in the structure, the oxide penetrating from the side of the transistor body to thicken the back gate oxide on the outer edges, leaving an effective thickness of gate oxide at the center, aligned with the front gate electrode. Optionally, an angled implant from the sides of an oxide enhancing species encourages relatively thicker oxide in the outer implanted areas and an oxide-retarding implant across the transistor body retards oxidation in the vertical direction, thereby permitting increase of the lateral extent of the oxidation.
    Type: Application
    Filed: February 16, 2007
    Publication date: June 21, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Omer Dokumaci, Bruce Doris, Kathryn Guarini, Suryanarayan Hegde, Meikei Ieong, Erin Jones
  • Publication number: 20060214301
    Abstract: A connection device includes a plurality of re-configurable vias that connect a first metal layer to a second metal layer. An actuating element is disposed between the first metal layer and the second metal layer. The actuating element changes the configuration of the plurality of re-configurable vias to change the plurality of re-configurable vias between a conductive state and a non-conductive state.
    Type: Application
    Filed: May 9, 2006
    Publication date: September 28, 2006
    Inventors: David Frank, Kathryn Guarini, Christopher Murray, Xinlin Wang, Hon-Sum Wong
  • Publication number: 20060194414
    Abstract: Described is a wet chemical surface treatment involving NH4OH that enables extremely strong direct bonding of two wafer such as semiconductors (e.g., Si) to insulators (e.g., SiO2) at low temperatures (less than or equal to 400° C.). Surface energies as high as ˜4835±675 mJ/m2 of the bonded interface have been achieved using some of these surface treatments. This value is comparable to the values reported for significantly higher processing temperatures (less than 1000° C.). Void free bonding interfaces with excellent yield and surface energies of ˜2500 mJ/m2 have also be achieved herein.
    Type: Application
    Filed: April 26, 2006
    Publication date: August 31, 2006
    Applicant: International Business Machines Corporation
    Inventors: Kevin Chan, Kathryn Guarini, Erin Jones, Antonio Saavedra, Leathen Shi, Dinkar Singh
  • Publication number: 20060163646
    Abstract: A floating gate for a field effect transistor (and method for forming the same and method of forming a uniform nanoparticle array), includes a plurality of discrete nanoparticles in which at least one of a size, spacing, and density of the nanoparticles is one of templated and defined by a self-assembled material.
    Type: Application
    Filed: March 13, 2006
    Publication date: July 27, 2006
    Applicant: International Business Machines Corporation
    Inventors: Charles Black, Kathryn Guarini
  • Publication number: 20060033110
    Abstract: A three dimensional (3D) integrated circuit (IC), 3D IC chip and method of fabricating a 3D IC chip. The chip includes multiple layers of circuits, e.g., silicon insulator (SOI) CMOS IC layers, each including circuit elements. The layers may be formed in parallel and one layer attached to another to form a laminated 3D chip.
    Type: Application
    Filed: August 16, 2004
    Publication date: February 16, 2006
    Inventors: Syed Alam, Ibrahim Elfadel, Kathryn Guarini, Meikei Ieong, Prabhakar Kudva, David Kung, Mark Lavin, Arifur Rahman
  • Publication number: 20050285097
    Abstract: A structure and method of fabrication for PFET devices in a compressively strained Ge layer is disclosed. The fabrication method of such devices is compatible with standard CMOS technology and it is fully scalable. The processing includes selective epitaxial depositions of an over 50% Ge content buffer layer, a pure Ge layer, and a SiGe top layer. Fabricated buried channel PMOS devices hosted in the compressively strained Ge layer show superior device characteristics relative to similar Si devices.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 29, 2005
    Inventors: Huiling Shang, Meikei Ieong, Jack Chu, Kathryn Guarini
  • Publication number: 20050285159
    Abstract: A structure for conducting carriers and method for forming is described incorporating a single crystal substrate of Si or SiGe having an upper surface in the <110> and a psuedomorphic or epitaxial layer of SiGe having a concentration of Ge different than the substrate whereby the psedomorphic layer is under strain. A method for forming semiconductor epitaxial layers is described incorporating the step of forming a psuedomorphic or epitaxial layer in a rapid thermal chemical vapor deposition (RTCVD) tool by increasing the temperature in the tool to about 600° C. and introducing both a Si containing gas and a Ge containing gas.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 29, 2005
    Applicant: International Business Machines Corporation
    Inventors: Kevin Chan, Kathryn Guarini, Meikel Ieong, Kern Rim, Min Yang
  • Publication number: 20050236687
    Abstract: Methods of forming a strained Si-containing hybrid substrate are provided as well as the strained Si-containing hybrid substrate formed by the methods. In the methods of the present invention, a strained Si layer is formed overlying a regrown semiconductor material, a second semiconducting layer, or both. In accordance with the present invention, the strained Si layer has the same crystallographic orientation as either the regrown semiconductor layer or the second semiconducting layer. The methods provide a hybrid substrate in which at least one of the device layers includes strained Si.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 27, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin Chan, Bruce Doris, Kathryn Guarini, Meikei Ieong, Shreesh Narasimha, Alexander Reznicek, Kern Rim, Devendra Sadana, Leathen Shi, Jeffrey Sleight, Min Yang
  • Publication number: 20050079719
    Abstract: A method for forming an interconnect structure with nanocolumnar intermetal dielectric is described involving the construction of an interconnect structure using a solid dielectric, and introducing a regular array of vertically aligned nanoscale pores through stencil formation and etching to form a hole array and subsequently pinching off the tops of the hole array with a cap dielectric. Variations of the method and means to construct a multilevel nanocolumnar interconnect structure are also described.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 14, 2005
    Inventors: Matthew Colburn, Satya Nitta, Sampath Purushothaman, Charles Black, Kathryn Guarini
  • Publication number: 20050070077
    Abstract: The present invention provides integrated semiconductor devices that are formed upon an SOI substrate having different crystal orientations that provide optimal performance for a specific device. Specifically, an integrated semiconductor structure including at least an SOI substrate having a top semiconductor layer of a first crystallographic orientation and a semiconductor material of a second crystallographic orientation, wherein the semiconductor material is substantially coplanar and of substantially the same thickness as that of the top semiconductor layer and the first crystallographic orientation is different from the second crystallographic orientation is provided. The SOI substrate is formed by wafer bonding, ion implantation and annealing.
    Type: Application
    Filed: October 18, 2004
    Publication date: March 31, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kathryn Guarini, Meikei Ieong, Leathen Shi, Min Yang
  • Publication number: 20050067620
    Abstract: Three-dimensional (3D) integration schemes of fabricating a 3D integrated circuit in which the pFETs are located on an optimal crystallographic surface for that device and the nFETs are located on a optimal crystallographic surface for that type of device are provided. In accordance with a first 3D integration scheme of the present invention, first semiconductor devices are pre-built on a semiconductor surface of a first silicon-on-insulator (SOI) substrate and second semiconductor devices are pre-built on a semiconductor surface of a second SOI substrate. After pre-building those two structures, the structure are bonded together and interconnect through wafer-via through vias.
    Type: Application
    Filed: August 9, 2004
    Publication date: March 31, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Victor Chan, Kathryn Guarini, Meikei Ieong