Patents by Inventor Roger Allen Booth

Roger Allen Booth 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: 20090189635
    Abstract: A method and apparatus implement reduced noise coupling effects on single ended clocks, and a design structure on which the subject circuit resides is provided. A clock receiver includes a clock voltage reference that is generated from received clock peaks and valleys of a received input clock signal. The received clock peaks (VT) and the received clock valleys (VB) are continuously sampled. The clock voltage reference is set, for example, equal to an average of VT and VB; or ((VT+VB)/2).
    Type: Application
    Filed: January 28, 2008
    Publication date: July 30, 2009
    Inventors: Roger Allen Booth, JR., John Richard Dangler, Matthew Stephen Doyle, Jesse Hefner, Thomas W. Liang, Ankur Kanu Patel, Paul W. Rudrud
  • Patent number: 7566629
    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: Grant
    Filed: June 16, 2005
    Date of Patent: July 28, 2009
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti
  • Patent number: 7517764
    Abstract: A finFET structure and a method of fabricating the finFET structure. The method includes: forming a silicon fin on a top surface of a silicon substrate; forming a gate dielectric on opposite sidewalls of the fin; forming a gate electrode over a channel region of the fin, the gate electrode in direct physical contact with the gate dielectric layer on the opposite sidewalls of the fin; forming a first source/drain in the fin on a first side of the channel region and forming a second source/drain in the fin on a second side of the channel region; removing a portion of the substrate from under at least a portion of the first and second source/drains to create a void; and filling the void with a dielectric material. The structure includes a body contact between the silicon body of the finFET and the substrate.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: April 14, 2009
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., William Paul Hovis, Jack Allan Mandelman
  • Publication number: 20080236883
    Abstract: A method and structures with an EMI shielding electrically conductive coating are provided for implementing EMI shielding for rigid cards and flexible circuits. An EMI shielding electrically conductive coating is deposited on an outer layer, for example, using a vacuum sputtering deposition, chemical vapor deposition (CVD) or physical vapor deposition (PVD) process. A solder mask is applied. Mechanically cleaning removes the sputtered copper coating in areas of the outer layer that are not protected by the solder mask.
    Type: Application
    Filed: June 11, 2008
    Publication date: October 2, 2008
    Applicant: International Business Machines Corporation
    Inventors: Roger Allen Booth, Matthew Stephen Doyle
  • Publication number: 20080230259
    Abstract: A method and structure are provided for implementing flexible circuits of various electronic packages and circuit applications. A meshed reference plane includes a variable mesh pitch arranged for control of mechanical flexibility. A dielectric core separates a signal layer from the variable pitch meshed reference plane. An electrically conductive coating covers the surface of the variable pitch meshed reference plane yielding substantially constant signal impedance for the signal layer.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 25, 2008
    Inventors: Roger Allen Booth Jr., Matthew Stephen Doyle
  • Publication number: 20080232152
    Abstract: A method and structure for implementing a reprogrammable read only memory (ROM), and a design structure on which the subject circuit resides are provided. A pair of fuse elements having different lengths are selectively arranged to define an initial bit state. A group of a plurality of the pairs of fuse elements defines a predetermined data pattern of ones and zeros, providing initial states stored in the reprogrammable ROM. The reprogrammable ROM is reprogrammed when needed by selectively blowing a selected fuse or selected fuses to change the data pattern stored in the ROM.
    Type: Application
    Filed: October 16, 2007
    Publication date: September 25, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger Allen Booth, Chandrasekharan Kothandaraman, Alan James Leslie
  • Publication number: 20080233699
    Abstract: A finFET structure and a method of fabricating the finFET structure. The method includes: forming a silicon fin on a top surface of a silicon substrate; forming a gate dielectric on opposite sidewalls of the fin; forming a gate electrode over a channel region of the fin, the gate electrode in direct physical contact with the gate dielectric layer on the opposite sidewalls of the fin; forming a first source/drain in the fin on a first side of the channel region and forming a second source/drain in the fin on a second side of the channel region; removing a portion of the substrate from under at least a portion of the first and second source/drains to create a void; and filling the void with a dielectric material. The structure includes a body contact between the silicon body of the finFET and the substrate.
    Type: Application
    Filed: June 5, 2008
    Publication date: September 25, 2008
    Inventors: Roger Allen Booth, William Paul Hovis, Jack Allan Mandelman
  • Publication number: 20080232150
    Abstract: A method and structure implementing a reprogrammable read only memory (ROM) include a pair of fuse elements having different lengths and selectively arranged to define an initial bit state. A group of a plurality of the pairs of fuse elements defines a predetermined data pattern of ones and zeros, providing initial states stored in the reprogrammable ROM. The reprogrammable ROM is reprogrammed when needed by selectively blowing a selected fuse or selected fuses to change the data pattern stored in the ROM.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 25, 2008
    Inventors: Roger Allen Booth, Chandrasekharan Kothandaraman, Alan James Leslie
  • 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
  • Publication number: 20080142891
    Abstract: A finFET structure and a method of fabricating the finFET structure. The method includes: forming a silicon fin on a top surface of a silicon substrate; forming a gate dielectric on opposite sidewalls of the fin; forming a gate electrode over a channel region of the fin, the gate electrode in direct physical contact with the gate dielectric layer on the opposite sidewalls of the fin; forming a first source/drain in the fin on a first side of the channel region and forming a second source/drain in the fin on a second side of the channel region; removing a portion of the substrate from under at least a portion of the first and second source/drains to create a void; and filling the void with a dielectric material. The structure includes a body contact between the silicon body of the finFET and the substrate.
    Type: Application
    Filed: February 11, 2008
    Publication date: June 19, 2008
    Inventors: Roger Allen Booth, William Paul Hovis, Jack Allan Mandelman
  • Patent number: 7352034
    Abstract: Methods of forming a semiconductor structure having FinFET's and planar devices, such as MOSFET's, on a common substrate by a damascene approach. A semiconductor fin of the FinFET is formed on a substrate with damascene processing in which the fin growth may be interrupted to implant ions that are subsequently transformed into a region that electrically isolates the fin from the substrate. The isolation region is self-aligned with the fin because the mask used to form the damascene-body fin also serves as an implantation mask for the implanted ions. The fin may be supported by the patterned layer during processing that forms the FinFET and, more specifically, the gate of the FinFET. The electrical isolation surrounding the FinFET may also be supplied by a self-aligned process that recesses the substrate about the FinFET and at least partially fills the recess with a dielectric material.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: April 1, 2008
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., Jack Allan Mandelman, William Robert Tonti
  • Patent number: 7353130
    Abstract: A method and apparatus are provided for implementing automatic-calibration of a Time Domain Reflectometer (TDR) probing apparatus. A calibration procedure is performed automatically each time a TDR probe is moved from a device under test (DUT). A current calibration TDR waveform is obtained and compared with a reference calibration TDR waveform, checking for deviations between the current and reference measurements. If a deviation is detected, then the user is notified and calibration is failed.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: April 1, 2008
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., Matthew Stephen Doyle, Lynn Robert Landin, Thomas W. Liang, Ankur Kanu Patel
  • Publication number: 20080029298
    Abstract: A method and structures with an EMI shielding electrically conductive coating are provided for implementing EMI shielding for rigid cards and flexible circuits. An EMI shielding electrically conductive coating is deposited on an outer layer, for example, using a vacuum sputtering deposition, chemical vapor deposition (CVD) or physical vapor deposition (PVD) process. A solder mask is applied. Mechanically cleaning removes the sputtered copper coating in areas of the outer layer that are not protected by the solder mask.
    Type: Application
    Filed: August 7, 2006
    Publication date: February 7, 2008
    Inventors: Roger Allen Booth, Matthew Stephen Doyle
  • Publication number: 20080001187
    Abstract: A finFET structure and a method of fabricating the finFET structure. The method includes: forming a silicon fin on a top surface of a silicon substrate; forming a gate dielectric on opposite sidewalls of the fin; forming a gate electrode over a channel region of the fin, the gate electrode in direct physical contact with the gate dielectric layer on the opposite sidewalls of the fin; forming a first source/drain in the fin on a first side of the channel region and forming a second source/drain in the fin on a second side of the channel region; removing a portion of the substrate from under at least a portion of the first and second source/drains to create a void; and filling the void with a dielectric material. The structure includes a body contact between the silicon body of the finFET and the substrate.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: Roger Allen Booth, William Paul Hovis, Jack Allan Mandelman
  • Patent number: 7299144
    Abstract: A method and apparatus are provided for implementing automatic-calibration of a Time Domain Reflectometer (TDR) probing apparatus. A calibration procedure is performed automatically each time a TDR probe is moved from a device under test (DUT). A current calibration TDR waveform is obtained and compared with a reference calibration TDR waveform, checking for deviations between the current and reference measurements. If a deviation is detected, then the user is notified and calibration is failed.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: November 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., Matthew Stephen Doyle, Lynn Robert Landin, Thomas W. Liang, Ankur Kanu Patel
  • Patent number: 7235875
    Abstract: A modular heat sink decoupling capacitor array includes a plurality of modules, each defining parallel distributed decoupling plates, and each module forming a heat sink fi. Each module includes multiple spaced apart contacts for providing low inductance connections with an associated device. A power distribution interposer module is attached to a heat sink surface of the modular decoupling capacitor. The interposer module is used for implementing power delivery without using valuable ball grid array (BGA) connections and printed circuit board (PCB) layers.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: June 26, 2007
    Assignee: International Business Machines Corporation
    Inventors: Roger Allen Booth, Jr., Matthew Stephen Doyle, Don Alan Gilliland, Brian Edward Gregg, Lynn Robert Landin, Thomas W. Liang, Ankur Kanu Patel, Dennis James Wurth