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: 20090179266
    Abstract: Device structures for a metal-oxide-semiconductor field effect transistor (MOSFET) that is suitable for operation at relatively high voltages and methods of forming same. The MOSFET, which is formed using a semiconductor-on-insulator (SOI) substrate, includes a channel in a semiconductor body that is self-aligned with a gate electrode. The gate electrode and semiconductor body, which are both formed from the monocrystalline SOI layer of the SOI substrate, are separated by a gap that is filled by a gate dielectric layer. The gate dielectric layer may be composed of thermal oxide layers grown on adjacent sidewalls of the semiconductor body and gate electrode, in combination with an optional deposited dielectric material that fills the remaining gap between the thermal oxide layers.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 16, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Wagdi W. Abadeer, Kiran V. Chatty, Robert J. Gauthier, JR., Jed H. Rankin, Yun Shi, William R. Tonti
  • Patent number: 7550789
    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: Grant
    Filed: February 29, 2008
    Date of Patent: June 23, 2009
    Assignee: International Business Machines Corporation
    Inventors: Anthony R. Bonaccio, Karl R. Erickson, John A. Fifield, Chandrasekharan Kothandaraman, Phil C. Paone, William R. Tonti
  • Patent number: 7551470
    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: Grant
    Filed: October 19, 2006
    Date of Patent: June 23, 2009
    Assignee: International Business Machines Corporation
    Inventors: Karl R. Erickson, John A. Fifield, Chandrasekara Kothandaraman, Phil C. Paone, William R. Tonti
  • Publication number: 20090147568
    Abstract: In a first aspect, a first apparatus is provided. The first apparatus is a memory element that includes (1) one or more MOSFETs each including a dielectric material having a dielectric constant of about 3.9 to about 25; and (2) control logic coupled to at least one of the one or more MOSFETs. The control logic is adapted to (a) cause the memory element to operate in a first mode to store data; and (b) cause the memory element to operate in a second mode to change a threshold voltage of at least one of the one or more MOSFETs from an original threshold voltage to a changed threshold voltage such that the changed threshold voltage affects data stored by the memory element when operated in the first mode. Numerous other aspects are provided.
    Type: Application
    Filed: January 12, 2009
    Publication date: June 11, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Wagdi W. Abadeer, Anthony R. Bonaccio, Jack A. Mandelman, William R. Tonti, Sebastian T. Ventrone
  • Patent number: 7545253
    Abstract: An electronic fuse for an integrated circuit and a method of fabrication thereof are presented. The electronic fuse has a first terminal portion and a second terminal portion interconnected by a fuse element. The fuse element has a convex upper surface and a lower surface with a radius of curvature at a smallest surface area of curvature less than or equal to 100 nanometers. Fabricating the electronic fuse includes forming an at least partially freestanding dielectric spacer above a supporting structure, and then conformably forming the fuse element of the fuse over at least a portion of the freestanding dielectric spacer, with the fuse element characterized as noted above. The dielectric spacer may remain in place as a thermally insulating layer underneath the fuse element, or may be removed to form a void underneath the fuse element.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: June 9, 2009
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti, Chih-Chao Yang
  • Publication number: 20090134463
    Abstract: A semiconductor structure and a system for fabricating an integrated circuit chip. The semiconductor structure includes: a buried oxide layer on a semiconductor wafer; a thin fin structure on the buried oxide layer, wherein the thin fin structure includes a first hard mask on a semiconductor fin, wherein the semiconductor fin is disposed between the first hard mask and a surface of the buried oxide layer; and a thick mesa structure on the buried oxide layer, and wherein the thick mesa structure includes a semiconductor mesa. The system for fabricating an integrated circuit chip enables: providing a buried oxide layer on and in direct mechanical contact with a semiconductor wafer; and concurrently forming at least one fin-type field effect transistor and at least one thick-body device on the buried oxide layer.
    Type: Application
    Filed: January 5, 2009
    Publication date: May 28, 2009
    Inventors: Wagdi W. Abadeer, Jeffrey S. Brown, David M. Fried, Robert J. Gauthier, JR., Edward J. Nowak, Jed H. Rankin, William R. Tonti
  • Patent number: 7531388
    Abstract: Electrically programmable fuse structures and methods of fabrication thereof are presented, wherein a fuse includes first and second terminal portions interconnected by an elongate fuse element. The first terminal portion has a maximum width greater than a maximum width of the fuse element, and the fuse includes a narrowed width region where the first terminal portion and fuse element interface. The narrowed width region extends at least partially into and includes part of the first terminal portion. The width of the first terminal portion in the narrowed region is less than the maximum width of the first terminal portion to enhance current crowding therein. In another implementation, the fuse element includes a restricted width region wherein width of the fuse element is less than the maximum width thereof to enhance current crowding therein, and length of the restricted width region is less than a total length of the fuse element.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: May 12, 2009
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., William R. Tonti, Jack A. Mandelman
  • Patent number: 7477541
    Abstract: In a first aspect, a first apparatus is provided. The first apparatus is a memory element that includes (1) one or more MOSFETs each including a dielectric material having a dielectric constant of about 3.9 to about 25; and (2) control logic coupled to at least one of the one or more MOSFETs. The control logic is adapted to (a) cause the memory element to operate in a first mode to store data; and (b) cause the memory element to operate in a second mode to change a threshold voltage of at least one of the one or more MOSFETs from an original threshold voltage to a changed threshold voltage such that the changed threshold voltage affects data stored by the memory element when operated in the first mode. Numerous other aspects are provided.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: January 13, 2009
    Assignee: International Business Machines Corporation
    Inventors: Wagdi W. Abadeer, Anthony R. Bonaccio, Jack A. Mandelman, William R. Tonti, Sebastian T. Ventrone
  • Patent number: 7473970
    Abstract: An integrated circuit chip and a semiconductor structure. The integrated circuit chip includes: a thick-body device containing a semiconductor mesa and a doped body contact; and a field effect transistor on a first sidewall of a semiconductor mesa, wherein the doped body contact is on a second sidewall of the semiconductor mesa, and wherein the semiconductor mesa is disposed between the field effect transistor and the doped body contact. The semiconductor structure includes: a buried oxide layer on a semiconductor wafer; a thin fin structure on the buried oxide layer, wherein the thin fin structure includes a first hard mask on a semiconductor fin, wherein the semiconductor fin is disposed between the first hard mask and a surface of the buried oxide layer; and a thick mesa structure on the buried oxide layer, and wherein the thick mesa structure includes a semiconductor mesa.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: January 6, 2009
    Assignee: International Business Machines Corporation
    Inventors: Wagdi W. Abadeer, Jeffrey S. Brown, David M. Fried, Robert J. Gauthier, Jr., Edward J. Nowak, Jed H. Rankin, William R. Tonti
  • Patent number: 7472320
    Abstract: Disclosed is a method and apparatus for autonomously self-monitoring and self-adjusting the operation of an integrated circuit device throughout the integrated circuit device's useful life. The invention periodically performs performance self-testing on the integrated circuit device throughout the integrated circuit devices useful life. The invention also evaluates whether results from the self-testing are within acceptable limits and self-adjusts parameters of the integrated circuit device until the results from the self-testing are within the acceptable limits.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: December 30, 2008
    Assignee: International Business Machines Corporation
    Inventors: Zachary E. Berndlmaier, Stephen F. Geissler, William R. Tonti
  • Publication number: 20080318373
    Abstract: A method is provided for making a bipolar transistor which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The collector pedestal can be formed on a surface of a collector active region exposed within an opening extending through first and second overlying dielectric regions, where the opening defines vertically aligned edges of the first and second dielectric regions.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 25, 2008
    Applicant: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Patent number: 7460003
    Abstract: An electronic fuse for an integrated circuit and a method of fabrication thereof are presented. The electronic fuse has a first terminal portion and a second terminal portion interconnected by a fuse element. The fuse element has a convex upper surface and a lower surface with a radius of curvature at a smallest surface area of curvature less than or equal to 100 nanometers. Fabricating the electronic fuse includes forming an at least partially freestanding dielectric spacer above a supporting structure, and then conformably forming the fuse element of the fuse over at least a portion of the freestanding dielectric spacer, with the fuse element characterized as noted above. The dielectric spacer may remain in place as a thermally insulating layer underneath the fuse element, or may be removed to form a void underneath the fuse element.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: December 2, 2008
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti, Chih-Chao Yang
  • Patent number: 7442583
    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: Grant
    Filed: December 17, 2004
    Date of Patent: October 28, 2008
    Assignee: International Business Machines Corporation
    Inventors: Anthony R. Bonaccio, Karl R. Erickson, John A. Fifield, Chandrasekharan Kothandaraman, Phil C. Paone, William R. Tonti
  • Publication number: 20080258857
    Abstract: An electronic fuse for an integrated circuit and a method of fabrication thereof are presented. The electronic fuse has a first terminal portion and a second terminal portion interconnected by a fuse element. The fuse element has a convex upper surface and a lower surface with a radius of curvature at a smallest surface area of curvature less than or equal to 100 nanometers. Fabricating the electronic fuse includes forming an at least partially freestanding dielectric spacer above a supporting structure, and then conformably forming the fuse element of the fuse over at least a portion of the freestanding dielectric spacer, with the fuse element characterized as noted above. The dielectric spacer may remain in place as a thermally insulating layer underneath the fuse element, or may be removed to form a void underneath the fuse element.
    Type: Application
    Filed: May 28, 2008
    Publication date: October 23, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti, Chih-Chao Yang
  • Patent number: 7425754
    Abstract: A bipolar transistor is provided which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The bipolar transistor further includes an intrinsic base overlying the upper surface of the collector pedestal, a raised extrinsic base conductively connected to the intrinsic base and an emitter overlying the intrinsic base. In a particular embodiment, the emitter is self-aligned to the collector pedestal, having a centerline which is aligned to the centerline of the collector pedestal.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: September 16, 2008
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Patent number: 7417300
    Abstract: Electrically programmable fuse structures and methods of fabrication thereof are presented, wherein a fuse includes first and second terminal portions interconnected by an elongate fuse element. The first terminal portion has a maximum width greater than a maximum width of the fuse element, and the fuse includes a narrowed width region where the first terminal portion and fuse element interface. The narrowed width region extends at least partially into and includes part of the first terminal portion. The width of the first terminal portion in the narrowed region is less than the maximum width of the first terminal portion to enhance current crowding therein. In another implementation, the fuse element includes a restricted width region wherein width of the fuse element is less than the maximum width thereof to enhance current crowding therein, and length of the restricted width region is less than a total length of the fuse element.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: August 26, 2008
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Jack A. Mandelman, William R. Tonti
  • Publication number: 20080157261
    Abstract: In an aspect, a method is provided for forming a silicon-on-insulator (SOI) layer. The method includes the steps of (1) providing a silicon substrate; (2) selectively implanting the silicon substrate with oxygen using a low implant energy to form an ultra-thin patterned seed layer; and (3) employing the ultra-thin patterned seed layer to form a patterned SOI layer on the silicon substrate. Numerous other aspects are provided.
    Type: Application
    Filed: March 14, 2008
    Publication date: July 3, 2008
    Inventors: Roger Allen Booth,, Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti
  • Patent number: 7394268
    Abstract: A plurality of semiconductor devices are provided on a carrier for testing or burning-in. The carrier is then cut up to provide single chip-on-carrier components or multi-chip-on-carrier components. The carrier is used as a first level package for each chip. Thus, the carrier serves a dual purpose for test and burn-in and for packaging. A lead reduction mechanism, such as a built-in self-test engine, can be provided on each chip or on the carrier and is connected to contacts of the carrier for the testing and burn-in steps. The final package after cutting includes at least one known good die and may include an array of chips on the carrier, such as a SIMM or a DIMM. The final package can also be a stack of chips each mounted on a separate carrier. The carriers of the stack are connected to each other through a substrate mounted along a side face of the stack that is electrically connected to a line of pads along an edge of each carrier.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: July 1, 2008
    Assignee: International Business Machines Corporation
    Inventors: Claude L. Bertin, Wayne F. Ellis, Mark W. Kellogg, William R. Tonti, Jerzy M. Zalesinski, James M. Leas, Wayne J. Howell
  • Publication number: 20080153278
    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: Application
    Filed: March 6, 2008
    Publication date: June 26, 2008
    Applicant: International Business Machines Corporation
    Inventors: Edward J. Nowak, Jed H. Rankin, William R. Tonti, Richard Q. Williams
  • Publication number: 20080144252
    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: Application
    Filed: February 26, 2008
    Publication date: June 19, 2008
    Inventors: Wagdi W. Abadeer, Anthony R. Bonaccio, Jack A. Mandelman, William R. Tonti, Sebastian T. Ventrone