Patents by Inventor Roger A. Booth, Jr.

Roger A. Booth, Jr. 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: 7656005
    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: June 26, 2007
    Date of Patent: February 2, 2010
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Kangguo Cheng, Jack A. Mandelman, William R. Tonti
  • Publication number: 20090277670
    Abstract: A printed circuit board assembly having an edge joined first and second sub-circuit board is provided. The first sub-circuit board includes an edge with a stair-step profile interconnection wherein each of the stairs on the profile exposes an area of a signal layer. Each exposed portion of the signal layer has a plurality of signal pads thereon. The second sub-circuit board includes an edge with an inverse stair-step profile interconnection. A pad-on-pad connector is positioned in-between and electrically interconnects the respective signal layers on each sub-circuit board.
    Type: Application
    Filed: May 10, 2008
    Publication date: November 12, 2009
    Inventors: Roger A. Booth, JR., John R. Dangler, Matthew S. Doyle, Jesse M. Hefner, Thomas W. Liang, Ankur K. Patel, Paul W. Rudrud
  • Publication number: 20090256211
    Abstract: A first gate stack comprising two stacked gate electrodes in a first device region, a second gate stack comprising a metal gate electrode in a second device region, and a third gate stack comprising a semiconductor gate electrode in a third device region are formed by forming and removing portions of a silicon-oxide based gate dielectric layer, a first doped semiconductor layer, an interfacial dielectric layer, a high-k gate dielectric layer, a metal gate layer, and an optional semiconductor material layer in various device regions. The first gate stack may be employed to form a flash memory, and the second and third gate stacks may be employed to form a pair of p-type and n-type field effect transistors.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 15, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, Jr., Deok-kee Kim, Haining S. Yang, Xiaojun Yu
  • Publication number: 20090242953
    Abstract: Forming a shallow trench capacitor in conjunction with an FET by forming a plurality of STI trenches; for the FET, implanting a first cell well having a first polarity between a first and a second of the STI trenches; for the capacitor, implanting a second cell well having a second polarity in an area of a third of the STI trenches; removing dielectric material from the third STI trench; forming a gate stack having a first portion located between the first and the second of the STI trenches and a second portion located over and extending into the third trench; and performing a source/drain implant of the same polarity as the second cell well, thereby forming a FET in the first cell well, and a capacitor in the second cell well. The second polarity may be opposite from the first polarity. An additional implant may reduce ESR in the second cell well.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, JR., MaryJane Brodsky, Kangguo Cheng, Chengwen Pei
  • Publication number: 20090213565
    Abstract: Exemplary embodiments of the present invention relate to a method for making multilayer flexible printed circuit carrier. The method comprises producing a first flexible conductor layer having a first width, producing a second flexible conductor layer having a second width larger than the first width, and separating a first side of the first flexible conductor and a first side of the second flexible conductors with a first insulator. The method also comprises placing a second insulator over at least a portion of a second surface of the first flexible conductor, and wrapping a portion of the second flexible conductor over the at least a portion of the second surface of the first flexible conductor.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, Jr., John M. Dangler, Matthew S. Doyle
  • Patent number: 7550773
    Abstract: FinFETs are provided with a body contact on a top surface of a semiconductor fin. The top body contact may be self-aligned with respect to the semiconductor fin and the source and drain regions. Alternately, the source and drain regions may be formed recessed from the top surface of the semiconductor fin. The body or an extension of the body may be contacted above the channel or above one of the source and drain regions. Electrical shorts between the source and drain and the body contacts are avoided by the recessing of the source and drain regions from the top surface of the semiconductor fin.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: June 23, 2009
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Kangguo Cheng, Jack A. Mandelman
  • 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: 7525299
    Abstract: A device to access and/or verify connections between a chip package and a printed circuit board (“PCB”), specifically within packages lacking back-side measurement access, includes a housing for insertion between the chip package and PCB. A passageway in the housing connects an entrance and an exit from the housing. The entrance is disposed on an end of the housing facing away from the chip package. The exit is disposed on a side of the housing below the chip package such that the passageway is directed at a signal path between the chip package and the PCB. A conductor disposed in the passageway is movable between a retracted position in which a contact end of the conductor is disposed within the passageway of the housing and an extended position in which the contact end of the conductor is disposed outside of the housing and in contact with the signal path.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: April 28, 2009
    Assignee: International Business Machines Corporation
    Inventors: Paul W. Rudrud, Roger A. Booth, Jr., John R. Dangler, Matthew S. Doyle, Jesse M. Hefner, Ankur K. Patel, Thomas W. Liang
  • Publication number: 20090101956
    Abstract: A deep trench is formed in a semiconductor substrate and a pad layer thereupon, and filled with a dummy node dielectric and a dummy trench fill. A shallow trench isolation structure is formed in the semiconductor substrate. A dummy gate structure is formed in a device region after removal of the pad layer. A first dielectric layer is formed over the dummy gate structure and a protruding portion of the dummy trench fill and then planarized. The dummy structures are removed. The deep trench and a cavity formed by removal of the dummy gate structure are filled with a high dielectric constant material layer and a metallic layer, which form a high-k node dielectric and a metallic inner electrode of a deep trench capacitor in the deep trench and a high-k gate dielectric and a metal gate in the device region.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 23, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, JR., MaryJane Brodsky, Kangguo Cheng, Chengwen Pei
  • Publication number: 20090056998
    Abstract: Disclosed herein is a method comprising drilling a first hole in a multilayered device; the multilayered device comprising a fill layer disposed between and in intimate contact with two layers of a first electrically conducting material; the fill layer being electrically insulating; plating the first hole with a slurry; the slurry comprising a magnetic material, an electrically conducting material, or a combination comprising at least one of the foregoing materials; filling the first hole with a fill material; the fill material being electrically insulating; laminating a first layer and a second layer on opposing faces of the multilayered device to form a laminate; the opposing faces being the faces through which the first hole is drilled; the first layer and the second layer each comprising a second electrically conducting material; drilling a second hole through the laminate; the second hole having a circumference that is encompassed by a circumference of the first hole; and plating the surface of the secon
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, Jr., John R. Dangler, Matthew S. Doyle, Jesse Hefner, Thomas W. Liang, Ankur K. Patel, Paul Rudrud
  • Publication number: 20090051002
    Abstract: A thin semiconductor layer is formed and patterned on a semiconductor substrate to form a thin semiconductor fuselink on shallow trench isolation and between an anode semiconductor region and a cathode semiconductor region. During metallization, the semiconductor fuselink is converted to a thin metal semiconductor alloy fuselink as all of the semiconductor material in the semiconductor fuselink reacts with a metal to form a metal semiconductor alloy. The inventive electrical fuse comprises the thin metal semiconductor alloy fuselink, a metal semiconductor alloy anode, and a metal semiconductor alloy cathode. The thin metal semiconductor alloy fuselink has a smaller cross-sectional area compared with prior art electrical fuses. Current density within the fuselink and the divergence of current at the interface between the fuselink and the cathode or anode comparable to prior art electrical fuses are obtained with less programming current than prior art electrical fuses.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, JR., MaryJane Brodsky, Kangguo Cheng, Chengwen Pei
  • Publication number: 20090026491
    Abstract: In one embodiment, a mandrel and an outer dummy spacer may be employed to form a first conductivity type region. The mandrel is removed to form a recessed region wherein a second conductivity type region is formed. In another embodiment, a mandrel is removed from within shallow trench isolation to form a recessed region, in which an inner dummy spacer is formed. A first conductivity type region and a second conductivity region are formed within the remainder of the recessed region. An anneal is performed so that the first conductivity type region and the second conductivity type region abut each other by diffusion. A gate electrode is formed in self-alignment to the p-n junction between the first and second conductivity regions. The p-n junction controlled by the gate electrode, which may be sublithographic, constitutes an inventive tunneling effect transistor.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 29, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, JR., Kangguo Cheng, Jack A. Mandelman
  • Publication number: 20090001464
    Abstract: FinFETs are provided with a body contact on a top surface of a semiconductor fin. The top body contact may be self-aligned with respect to the semiconductor fin and the source and drain regions. Alternately, the source and drain regions may be formed recessed from the top surface of the semiconductor fin. The body or an extension of the body may be contacted above the channel or above one of the source and drain regions. Electrical shorts between the source and drain and the body contacts are avoided by the recessing of the source and drain regions from the top surface of the semiconductor fin.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger A. Booth, JR., Kangguo Cheng, Jack A. Mandelman
  • 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
  • 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