Patents by Inventor William R. Tonti

William R. Tonti 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: 20080143373
    Abstract: Techniques and systems whereby operation of and/or access to particular features of an electronic device may be controlled after the device has left the control of the manufacturer are provided. The operation and/or access may be provided based on values stored in non-volatile storage elements, such as electrically programmable fused (eFUSES).
    Type: Application
    Filed: February 29, 2008
    Publication date: June 19, 2008
    Inventors: Anthony R. BONACCIO, Karl R. ERICKSON, John A. FIFIELD, Chandrasekharan KOTHANDARAMAN, Phil C. PAONE, William R. TONTI
  • Patent number: 7382036
    Abstract: An eFuse begins with a single crystal silicon-on-insulator (SOI) structure that has a single crystal silicon layer on a first insulator layer. The single crystal silicon layer is patterned into a strip. Before or after the patterning, the single crystal silicon layer is doped with one or more impurities. At least an upper portion of the single crystal silicon layer is then silicided to form a silicided strip. In one embodiment the entire single crystal silicon strip is silicided to create a silicide strip. Second insulator(s) is/are formed on the silicide strip, so as to isolate the silicided strip from surrounding structures. Before or after forming the second insulators, the method forms electrical contacts through the second insulators to ends of the silicided strip. By utilizing a single crystal silicon strip, any form of semiconductor, such as a diode, conductor, insulator, transistor, etc. can form the underlying portion of the fuse structure.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: June 3, 2008
    Assignee: International Business Machines Corporation
    Inventors: Edward J. Nowak, Jed H. Rankin, William R. Tonti, Richard Q. Williams
  • Patent number: 7381594
    Abstract: A semiconductor structure including at least one e-fuse embedded within a trench that is located in a semiconductor substrate (bulk or semiconductor-on-insulator) is provided. In accordance with the present invention, the e-fuse is in electrical contact with a dopant region that is located within the semiconductor substrate. The present invention also provides a method of fabricating such a semiconductor structure in which the embedded e-fuse is formed substantially at the same time with the trench isolation regions.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: June 3, 2008
    Assignee: International Business Machines Corporation
    Inventors: Louis L. Hsu, Jack A. Mandelman, William R. Tonti, Chih-Chao Yang
  • Patent number: 7381610
    Abstract: A structure and a method for forming the same. The structure includes (a) a semiconductor layer including a channel region disposed between first and second S/D regions; (b) a gate dielectric region on the channel region; (c) a gate region on the gate dielectric region and electrically insulated from the channel region by the gate dielectric region; (d) a protection umbrella region on the gate region, wherein the protection umbrella region comprises a first dielectric material, and wherein the gate region is completely in a shadow of the protection umbrella region; and (e) a filled contact hole (i) directly above and electrically connected to the second S/D region and (ii) aligned with an edge of the protection umbrella region, wherein the contact hole is physically isolated from the gate region by an inter-level dielectric (ILD) layer which comprises a second dielectric material different from the first dielectric material.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 3, 2008
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark C. Hakey, Steven J. Holmes, David V. Horak, Charles W. Koburger, III, William R. Tonti
  • Publication number: 20080094896
    Abstract: The embodiments of the invention provide an apparatus, method, etc. for a non volatile memory RAD-hard (NVM-rh) system. More specifically, an IC permanent non-volatile storage element comprises an integrated semiconductor stable reference component, wherein the component is resistant to external radiation. The storage element further comprises e-fuse structures in the component and a sensing circuit coupled to the e-fuse structures. The sensing circuit is adapted to update an external device at a specified time interval to reduce incidence of soft errors and errors due to power failure. Moreover, the sensing circuit is adapted to cease updating the external device to program the e-fuse structures; and, continue updating the external device after programming the e-fuse structures.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 24, 2008
    Inventors: Karl R. Erickson, John A. Fifield, Chandrasekara Kothandaraman, Phil C. Paone, William R. Tonti
  • Patent number: 7358823
    Abstract: In a first aspect, a first method of adjusting capacitance of a semiconductor device is provided. The first method includes the steps of (1) providing a transistor including a dielectric material having a dielectric constant of about 3.9 to about 25, wherein the transistor is adapted to operate in a first mode to provide a capacitance and further adapted to operate in a second mode to change a threshold voltage of the transistor from an original threshold voltage to a changed threshold voltage such that the changed threshold voltage affects a capacitance provided by the transistor when operated in the first mode; and (2) employing the transistor in a circuit. Numerous other aspects are provided.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: April 15, 2008
    Assignee: International Business Machines Corporation
    Inventors: Wagdi W. Abadeer, Anthony R. Bonaccio, Jack A. Mandelman, William R. Tonti, Sebastian T. Ventrone
  • Publication number: 20080067600
    Abstract: In a first aspect, a first apparatus is provided. The first apparatus is an element of an integrated circuit (IC) having (1) a metal-oxide-semiconductor field-effect transistor (MOSFET) having source/drain diffusion regions; (2) an electrical fuse (eFuse) coupled to the MOSFET such that a portion of the eFuse serves as a gate region of the MOSFET; and (3) an implanted region coupled to the source/drain diffusion regions of the MOSFET such that a path between the source/drain diffusion regions functions as a short circuit or an open circuit. Numerous other aspects are provided.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 20, 2008
    Inventors: Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti, Chih-Chao Yang
  • Patent number: 7336095
    Abstract: Techniques and systems whereby operation of and/or access to particular features of an electronic device may be controlled after the device has left the control of the manufacturer are provided. The operation and/or access may be provided based on values stored in non-volatile storage elements, such as electrically programmable fuses (eFUSES).
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: February 26, 2008
    Assignee: International Business Machines Corporation
    Inventors: Karl R. Erickson, John A. Fifield, Chandrasekharan Kothandaraman, Phil C. Paone, William R. Tonti
  • Publication number: 20080029844
    Abstract: An anti-fuse structure and a related method for fabricating the anti-fuse structure include a doped well within a semiconductor substrate. A first aperture and a second aperture that expose the doped well are located within a dielectric layer located over the semiconductor substrate and the doped well. A first conductor layer is located within the first aperture and a second conductor layer is located within the second aperture. At least a first anti-fuse material layer contacts the first conductor layer. The first conductor layer and the second conductor layer may comprise doped conductor materials that upon fusing of the anti-fuse structure provide an anti-fuse diode or an anti-fuse resistor.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 7, 2008
    Inventors: James W. Adkisson, Jeffrey P. Gambino, Kirk D. Peterson, William R. Tonti
  • Publication number: 20080006855
    Abstract: In a first aspect, a first apparatus is provided. The first apparatus is a semiconductor device on a substrate that includes (1) a first metal-oxide-semiconductor field-effect transistor (MOSFET); (2) a second MOSFET coupled to the first MOSFET, wherein portions of the first and second MOSFETs form first and second bipolar junction transistors (BJTs) which are coupled into a loop; and (3) a conductive region that electrically couples a source diffusion region of the first or second MOSFET with a doped well region below the source diffusion region. The conductive region is adapted to prevent an induced current from forming in the loop. Numerous other aspects are provided.
    Type: Application
    Filed: July 10, 2006
    Publication date: January 10, 2008
    Inventors: Jack A. Mandelman, William R. Tonti
  • Patent number: 7301210
    Abstract: Disclosed is an integrated circuit with multiple semiconductor fins having different widths and variable spacing on the same substrate. The method of forming the circuit incorporates a sidewall image transfer process using different types of mandrels. Fin thickness and fin-to-fin spacing are controlled by an oxidation process used to form oxide sidewalls on the mandrels, and more particularly, by the processing time and the use of intrinsic, oxidation-enhancing and/or oxidation-inhibiting mandrels. Fin thickness is also controlled by using sidewalls spacers combined with or instead of the oxide sidewalls. Specifically, images of the oxide sidewalls alone, images of sidewall spacers alone, and/or combined images of sidewall spacers and oxide sidewalls are transferred into a semiconductor layer to form the fins. The fins with different thicknesses and variable spacing can be used to form a single multiple-fin FET or, alternatively, various single-fin and/or multiple-fin FETs.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: November 27, 2007
    Assignee: International Business Machines Corporation
    Inventors: Wagdi W. Abadeer, Jeffrey S. Brown, Kiran V. Chatty, Robert J. Gauthier, Jr., Jed H. Rankin, William R. Tonti
  • Patent number: 7297582
    Abstract: A method and structure is disclosed for a transistor having a gate, a channel region below the gate, a source region on one side of the channel region, a drain region on an opposite side of the channel region from the source region, a shallow trench isolation (STI) region in the substrate between the drain region and the channel region, and a drain extension below the STI region. The drain extension is positioned along a bottom of the STI region and along a portion of sides of the STI. Portions of the drain extension along the bottom of the STI may comprise different dopant implants than the portions of the drain extensions along the sides of the STI. Portions of the drain extensions along sides of the STI extend from the bottom of the STI to a position partially up the sides of the STI. The STI region is below a portion of the gate. The drain extension provides a conductive path between the drain region and the channel region around a lower perimeter of the STI.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: November 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Wagdi W. Abadeer, Jeffrey S. Brown, Robert J. Gauthier, Jr., Jed H. Rankin, William R. Tonti
  • Patent number: 7288804
    Abstract: Electrically programmable fuse structures for an integrated circuit and methods of fabrication thereof are presented, wherein the electrically programmable fuse has a first terminal portion and a second terminal portion interconnected by a fuse element. The first terminal portion and the second terminal portion reside over a first support and a second support, respectively, with the first support and the second support being spaced apart, and the fuse element bridging the distance between the first terminal portion over the first support and the second terminal portion over the second support. The fuse, first support and second support define a ?-shaped structure in elevational cross-section through the fuse element. The first terminal portion, second terminal portion and fuse element are coplanar, with the fuse element residing above a void, which in one embodiment is filed by a thermally insulating dielectric material that surrounds the fuse element.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: October 30, 2007
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Kangguo Cheng, Jack A. Mandelman, William R. Tonti
  • Patent number: 7287177
    Abstract: An integrated circuit, including: a pulse generator adapted to generate a pulsed signal; a cycle counter adapted to count cycles of the pulsed signal; one or more repairable circuit elements; and a repair processor adapted to repair a repairable circuit element when the cycle counter reaches a pre-determined cycle count.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: October 23, 2007
    Assignee: International Business Machines Corporation
    Inventors: Anthony R. Bonaccio, Michael LeStrange, William R. Tonti, Sebastian T. Ventrone
  • Patent number: 7268577
    Abstract: Techniques and systems whereby operation of and/or access to particular features of an electronic device may be controlled after the device has left the control of the manufacturer are provided. The operation and/or access may be provided based on values stored in non-volatile storage elements, such as electrically programmable fuses (eFUSES).
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: September 11, 2007
    Assignee: International Business Machines Corporation
    Inventors: Karl R. Erickson, John A. Fifield, Chandrasekharan Kothandaraman, Phil C. Paone, William R. Tonti
  • Patent number: 7253066
    Abstract: An inverse-T transistor is formed by a method that decouples the halo implant, the deep S/D implant and the extension implant, so that the threshold voltage can be set by adjusting the halo implant without being affected by changes to the extension implant that are intended to alter the series resistance of the device. Formation of the inverse-T structure can be made by a damascene method in which a temporary layer deposited over the layer that will form the cross bar of the T has an aperture formed in it to hold the gate electrode, the aperture being lined with vertical sidewalls that provide space for the ledges that form the T. Another method of gate electrode formation starts with a layer of poly, forms a block for the gate electrode, covers the horizontal surfaces outside the gate with an etch-resistant material and etches horizontally to remove material above the cross bars on the T, the cross bars being protected by the etch resistant material.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: August 7, 2007
    Assignee: International Business Machines Corporation
    Inventors: Wagdi W. Abadeer, Jeffrey S. Brown, Kiran V. Chatty, Robert J. Gauthier, Jr., Carl J. Radens, William R. Tonti
  • Patent number: 7226816
    Abstract: An anti-fuse structure that can be programmed at low voltage and current and which potentially consumes very little chip spaces and can be formed interstitially between elements spaced by a minimum lithographic feature size is formed on a composite substrate such as a silicon-on-insulator wafer by etching a contact through an insulator to a support semiconductor layer, preferably in combination with formation of a capacitor-like structure reaching to or into the support layer. The anti-fuse may be programmed either by the selected location of conductor formation and/or damaging a dielectric of the capacitor-like structure. An insulating collar is used to surround a portion of either the conductor or the capacitor-like structure to confine damage to the desired location. Heating effects voltage and noise due to programming currents are effectively isolated to the bulk silicon layer, permitting programming during normal operation of the device.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: June 5, 2007
    Assignee: International Business Machines Corporation
    Inventors: Claude L. Bertin, Ramachandra Divakaruni, Russell J. Houghton, Jack A. Mandelman, William R. Tonti
  • Patent number: 7227230
    Abstract: A MOSFET device and a method of fabricating a MOSFET device having low-K dielectric oxide gate sidewall spacers produced by fluorine implantation. The present invention implants fluorine into the gate oxide sidewall spacers which is used to alter the properties of advanced composite gate dielectrics e.g. nitridized oxides, NO, and gate sidewall dielectrics, such that the low-K properties of fluorine are used to develop low parasitic capacitance MOSFETs.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: June 5, 2007
    Assignee: International Business Machines Corporation
    Inventors: Jeffrey P. Gambino, Jack Mandelman, William R. Tonti
  • Patent number: 7217629
    Abstract: The present invention provides an epitaxial imprinting process for fabricating a hybrid substrate that includes a bottom semiconductor layer; a continuous buried insulating layer present atop said bottom semiconductor layer; and a top semiconductor layer present on said continuous buried insulating layer, wherein said top semiconductor layer includes separate planar semiconductor regions that have different crystal orientations, said separate planar semiconductor regions are isolated from each other. The epitaxial printing process of the present invention utilizing epitaxial growth, wafer bonding and a recrystallization anneal.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: May 15, 2007
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Carl Radens, William R. Tonti, Richard Q. Williams
  • Patent number: 7217604
    Abstract: A method of forming a semiconductor device, including providing a substrate having a first insulative layer on a surface of the substrate, and a device layer on a surface of the first insulative layer, forming a spacer around the first insulative layer and the device layer, removing a portion of the substrate adjacent to the first insulative layer in a first region and a non-adjacent second region of the substrate, such that an opening is formed in the first and second regions of the substrate, leaving the substrate adjacent to the first insulative layer in a third region of the substrate, filling the opening within the first and second regions of the substrate, planarizing a surface of the device, and forming a device within the device layer, such that diffusion regions of the device are formed within the device layer above the first and second regions of the substrate, and a channel region of the device is formed above the third region of the substrate.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: May 15, 2007
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Carl J. Radens, William R. Tonti, Richard Q. Williams