Patents by Inventor David Horak

David Horak 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: 8300452
    Abstract: A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: October 30, 2012
    Assignee: International Business Machines Corporation
    Inventors: Ethan H. Cannon, Toshiharu Furukawa, David Horak, Charles W. Koburger, III, Jack A. Mandelman
  • Publication number: 20110163365
    Abstract: A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ethan H. Cannon, Toshiharu Furukawa, David Horak, Charles W. Koburger, III, Jack A. Mandelman
  • Patent number: 7965540
    Abstract: A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 21, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ethan H. Cannon, Toshiharu Furukawa, David Horak, Charles W. Koburger, III, Jack A. Mandelman
  • Publication number: 20110098318
    Abstract: The present invention relates to the use of farnesyl protein transferase inhibitors for preparing pharmaceutical compositions for treating advanced breast cancer.
    Type: Application
    Filed: January 6, 2011
    Publication date: April 28, 2011
    Inventors: Peter Albert Palmer, Ivan David Horak
  • Publication number: 20090244954
    Abstract: A digital logic storage structure includes cross coupled first and second complementary metal oxide semiconductor (CMOS) inverters formed on a semiconductor substrate, the CMOS inverters including a first storage node and a second storage node that is the logical complement of the first storage node; both of the first and second storage nodes each selectively coupled to a deep trench capacitor through a switching transistor, with the switching transistors controlled by a common capacitance switch line coupled to gate conductors thereof; wherein, in a first mode of operation, the switching transistors are rendered nonconductive so as to isolate the deep trench capacitors from the inverter storage nodes and, in a second mode of operation, the switching transistors are rendered conductive so as to couple the deep trench capacitors to their respective storage nodes, thereby providing increased resistance of the storage nodes to single event upsets (SEUs).
    Type: Application
    Filed: March 26, 2008
    Publication date: October 1, 2009
    Inventors: Ethan H. Cannon, Toshiharu Furukawa, David Horak, Charles W. Koburger, III, Jack A. Mandelman
  • Publication number: 20090018164
    Abstract: The present invention relates to the use of farnesyl protein transferase inhibitors for preparing pharmaceutical compositions for treating advanced breast cancer.
    Type: Application
    Filed: September 16, 2008
    Publication date: January 15, 2009
    Inventors: Peter Albert Palmer, Ivan David Horak
  • Publication number: 20080117671
    Abstract: Structures for memory devices. The structure includes (a) a substrate; (b) a first and second electrode regions on the substrate; and (c) a third electrode region disposed between the first and second electrode regions. In response to a first write voltage potential applied between the first and third electrode regions, the third electrode region changes its own shape, such that in response to a pre-specified read voltage potential subsequently applied between the first and third electrode regions, a sensing current flows between the first and third electrode regions. In addition, in response to a second write voltage potential being applied between the second and third electrode regions, the third electrode region changes its own shape such that in response to the pre-specified read voltage potential applied between the first and third electrode regions, said sensing current does not flow between the first and third electrode regions.
    Type: Application
    Filed: January 24, 2008
    Publication date: May 22, 2008
    Inventors: Toshiharu Furukawa, Mark Hakey, Steven Holmes, David Horak, Charles Koburger
  • Publication number: 20080116529
    Abstract: A semiconductor structure comprising a first field effect transistor (FET), a second FET, and a shallow trench isolation (STI) structure. The first FET comprises a channel region formed from a portion of a silicon substrate, a gate dielectric formed over the channel region, and a gate electrode comprising a bottom surface in direct physical contact with the gate dielectric. A top surface of the channel region is located within a first plane and the bottom surface of the gate electrode is located within a second plane. The STI structure comprises a conductive STI fill structure. A top surface of the conductive STI fill structure is above the first plane by a first distance D1 and is above the second plane by a second distance D2 that is less than D1.
    Type: Application
    Filed: January 30, 2008
    Publication date: May 22, 2008
    Inventors: Ethan Cannon, Shunhua Chang, Toshiharu Furukawa, David Horak, Charles Koburger
  • Publication number: 20080099844
    Abstract: A semiconductor on insulator substrate and a method of fabricating the substrate. The substrate including: a first crystalline semiconductor layer and a second crystalline semiconductor layer; and an insulating layer bonding a bottom surface of the first crystalline semiconductor layer to a top surface of the second crystalline semiconductor layer, a first crystal direction of the first crystalline semiconductor layer aligned relative to a second crystal direction of the second crystalline semiconductor layer, the first crystal direction different from the second crystal direction.
    Type: Application
    Filed: January 4, 2008
    Publication date: May 1, 2008
    Inventors: Toshiharu Furukawa, David Horak, Charles Koburger, Leathen Shi
  • Publication number: 20080102566
    Abstract: A semiconductor on insulator substrate and a method of fabricating the substrate. The substrate including: a first crystalline semiconductor layer and a second crystalline semiconductor layer; and an insulating layer bonding a bottom surface of the first crystalline semiconductor layer to a top surface of the second crystalline semiconductor layer, a first crystal direction of the first crystalline semiconductor layer aligned relative to a second crystal direction of the second crystalline semiconductor layer, the first crystal direction different from the second crystal direction.
    Type: Application
    Filed: January 4, 2008
    Publication date: May 1, 2008
    Inventors: Toshiharu Furukawa, David Horak, Charles Koburger, Leathen Shi
  • Publication number: 20080057671
    Abstract: Semiconductor structures and methods for suppressing latch-up in bulk CMOS devices. The semiconductor structure comprises a shaped-modified isolation region that is formed in a trench generally between two doped wells of the substrate in which the bulk CMOS devices are fabricated. The shaped-modified isolation region may comprise a widened dielectric-filled portion of the trench, which may optionally include a nearby damage region, or a narrowed dielectric-filled portion of the trench that partitions a damage region between the two doped wells. Latch-up may also be suppressed by providing a lattice-mismatched layer between the trench base and the dielectric filler in the trench.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 6, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshiharu Furukawa, Robert Gauthier, David Horak, Charles Koburger, Jack Mandelman, William Tonti
  • Publication number: 20080044954
    Abstract: A method for forming carbon nanotube field effect transistors, arrays of carbon nanotube field effect transistors, and device structures and arrays of device structures formed by the methods. The methods include forming a stacked structure including a gate electrode layer and catalyst pads each coupled electrically with a source/drain contact. The gate electrode layer is divided into multiple gate electrodes and at least one semiconducting carbon nanotube is synthesized by a chemical vapor deposition process on each of the catalyst pads. The completed device structure includes a gate electrode with a sidewall covered by a gate dielectric and at least one semiconducting carbon nanotube adjacent to the sidewall of the gate electrode. Source/drain contacts are electrically coupled with opposite ends of the semiconducting carbon nanotube to complete the device structure. Multiple device structures may be configured either as a memory circuit or as a logic circuit.
    Type: Application
    Filed: October 29, 2007
    Publication date: February 21, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshiharu Furukawa, Mark Hakey, Steven Holmes, David Horak, Charles Koburger, Peter Mitchell, Larry Nesbit
  • Publication number: 20080042287
    Abstract: A conductive layer in an integrated circuit is formed as a sandwich having multiple sublayers, including at least one sublayer of oriented carbon nanotubes. The conductive layer sandwich preferably contains two sublayers of carbon nanotubes, in which the carbon nanotube orientation in one sublayer is substantially perpendicular to that of the other layer. The conductive layer sandwich preferably contains one or more additional sublayers of a conductive material, such as a metal. In one embodiment, oriented carbon nanotubes are created by forming a series of parallel surface ridges, covering the top and one side of the ridges with a catalyst inhibitor, and growing carbon nanotubes horizontally from the uncovered vertical sides of the ridges. In another embodiment, oriented carbon nanotubes are grown on the surface of a conductive material in the presence of a directional flow of reactant gases and a catalyst.
    Type: Application
    Filed: October 26, 2007
    Publication date: February 21, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshiharu Furukawa, Mark Hakey, Steven Holmes, David Horak, Charles Koburger, Peter Mitchell
  • Publication number: 20080040696
    Abstract: Design structure embodied in a machine readable medium for designing, manufacturing, or testing a design in which the design structure includes shallow trench isolation filled with liquid phase deposited silicon dioxide (LPD-SiO2). The shallow trench isolation region is used to isolate two active regions formed on a silicon-on-insulator (SOI) substrate. By selectively depositing the oxide so that the active areas are not covered with the oxide, the polishing needed to planarize the wafer is significantly reduced as compared to a chemical-vapor deposited oxide layer that covers the entire wafer surface. Additionally, the LPD-SiO2 does not include the growth seams that CVD silicon dioxide does. Accordingly, the etch rate of the LPD-SiO2 is uniform across its entire expanse thereby preventing cavities and other etching irregularities present in prior art shallow trench isolation regions in which the etch rate of growth seams exceeds that of the other oxide areas.
    Type: Application
    Filed: October 19, 2007
    Publication date: February 14, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mark Hakey, Steven Holmes, David Horak, Charles Koburger, Peter Mitchell, Larry Nesbit
  • Publication number: 20080027577
    Abstract: A system, method and program product for correcting a deviation of a dimension of a feature from a target in a semiconductor process, are disclosed. The invention determines an origin of a deviation in a feature dimension from a target dimension regardless of whether it is based on processing or metrology. Adjustments for wafer processing variation of previous process tools can be fed forward, and adjustments for the process and/or integrated metrology tools may be fed back automatically during the processing of semiconductor wafers. The invention implements process reference wafers to determine the origin in one mode, and measurement reference wafers to determine the origin of deviations in another mode.
    Type: Application
    Filed: October 2, 2007
    Publication date: January 31, 2008
    Inventors: David Horak, Wesley Natzle, Merritt Funk, Kevin Lally, Daniel Prager
  • Publication number: 20080017932
    Abstract: A method and structure for forming a semiconductor structure. A semiconductor substrate is provided. A trench is formed within the semiconductor substrate. A first layer of electrically insulative material is formed within the trench. A first portion and a second portion of the first layer of electrically insulative material is removed. A second layer of electrically insulative material is selectively grown on the first layer comprising the removed first portion and the removed second portion.
    Type: Application
    Filed: October 3, 2007
    Publication date: January 24, 2008
    Inventors: Toshiharu Furukawa, Mark Hakey, Steven Holmes, David Horak, Charles Koburger
  • Publication number: 20080001225
    Abstract: A finFET structure includes a semiconductor fin located over a substrate. A gate electrode is located traversing the semiconductor fin. The gate electrode has a spacer layer located adjoining a sidewall thereof. The spacer layer does not cover completely a sidewall of the semiconductor fin. The gate electrode and the spacer layer may be formed using a vapor deposition method that provides for selective deposition upon a sidewall of a mandrel layer but not upon an adjoining surface of the substrate, so that the spacer layer does not cover completely the sidewall of the semiconductor fin. Other microelectronic structures may be fabricated using the lateral growth methodology.
    Type: Application
    Filed: January 31, 2006
    Publication date: January 3, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshiharu Furukawa, Steven Holmes, David Horak, Charles Koburger
  • Publication number: 20070262450
    Abstract: A fuse structure and a method for operating the same. The fuse structure operating method includes providing a structure. The structure includes (a) an electrically conductive layer and (b) N electrically conductive regions hanging over without touching the electrically conductive layer. N is a positive integer and N is greater than 1. The N electrically conductive regions are electrically connected together. The structure operating method further includes causing a first electrically conductive region of the N electrically conductive regions to touch the electrically conductive layer without causing the remaining N?1 electrically conductive regions to touch the electrically conductive layer.
    Type: Application
    Filed: April 21, 2006
    Publication date: November 15, 2007
    Inventors: Toshiharu Furukawa, Mark Hakey, Steven Holmes, David Horak, Charles Koburger
  • Publication number: 20070241409
    Abstract: Semiconductor structures and methods for suppressing latch-up in bulk CMOS devices. The semiconductor structure comprises a shaped-modified isolation region that is formed in a trench generally between two doped wells of the substrate in which the bulk CMOS devices are fabricated. The shaped-modified isolation region may comprise a widened dielectric-filled portion of the trench, which may optionally include a nearby damage region, or a narrowed dielectric-filled portion of the trench that partitions a damage region between the two doped wells. Latch-up may also be suppressed by providing a lattice-mismatched layer between the trench base and the dielectric filler in the trench.
    Type: Application
    Filed: June 18, 2007
    Publication date: October 18, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshiharu Furukawa, Robert Gauthier, David Horak, Charles Koburger, Jack Mandelman, William Tonti
  • Publication number: 20070241412
    Abstract: An SRAM cell. The SRAM cell including: a first gate segment common to a first PFET and a first NFET, a second gate segment common to a second PFET and a second NFET; a first silicide layer contacting a first end of the first gate segment and a drain of the second PFET; a second silicide layer contacting a sidewall contact region of the second gate segment and a drain of the first PFET; a third silicide layer contacting a sidewall contact region of the first gate segment and a drain of the second NFET; a fourth silicide layer contacting a first end of the second gate segment, a drain of the first PFET and a drain of a fourth NFET; and a fifth silicide layer contacting a second end of the first gate segment and a drain of a third NFET.
    Type: Application
    Filed: February 28, 2007
    Publication date: October 18, 2007
    Inventors: Toshiharu Furukawa, David Horak, Charles Koburger