Patents by Inventor Jack A. Allan

Jack A. Allan 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: 7560310
    Abstract: A method of fabricating a semiconductor device includes etching a substrate formed on a backside of a semiconductor wafer to form a recess in the substrate, and forming a sputter film in the recess, the sputter film including a first material having a coefficient of thermal expansion (CTE) which is at least substantially equal to a CTE of the substrate, and a second material having a thermal conductivity which is greater than a thermal conductivity of the substrate.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: July 14, 2009
    Assignee: International Business Machines Corporation
    Inventors: Louis L. C. Hsu, Rajiv V. Joshi, Jack Allan Mandelman
  • Publication number: 20090121312
    Abstract: A semiconductor processing method includes providing a substrate, forming a plurality of semiconductor layers in the substrate, each of the semiconductor layers being distinct and selected from different groups of semiconductor element types. The semiconductor layers include a first, second, and third semiconductor layers. The method further includes forming a plurality of lateral void gap isolation regions for isolating portions of each of the semiconductor layers from portions of the other semiconductor layers.
    Type: Application
    Filed: January 31, 2008
    Publication date: May 14, 2009
    Inventors: Howard Hao Chen, Louis Lu-Chen Hsu, Jack Allan Mandelman
  • Patent number: 7531423
    Abstract: In a first aspect, a first method of manufacturing a finFET is provided. The first method includes the steps of (1) providing a substrate; and (2) forming at least one source/drain diffusion region of the finFET on the substrate. Each source/drain diffusion region includes (a) an interior region of unsilicided silicon; and (b) silicide formed on a top surface and sidewalls of the region of unsilicided silicon. Numerous other aspects are provided.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: May 12, 2009
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Louis Lu-Chen Hsu, Jack Allan Mandelman, Haining Yang
  • 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
  • Patent number: 7494916
    Abstract: Design structure embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes an interconnect structure with a liner formed on roughened dielectric material in an insulating layer and a conformal liner repair layer bridging that breaches in the liner. The conformal liner repair layer is formed of a conductive material, such as a cobalt-containing material. The conformal liner repair layer may be particularly useful for repairing discontinuities in a conductive liner disposed on roughened dielectric material bordering the trenches and vias of damascene interconnect structures.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: February 24, 2009
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti, Chih-Chao Yang
  • Patent number: 7491994
    Abstract: In a first aspect, a first apparatus is provided. The first apparatus is a memory cell that includes (1) a semiconductor fin enclosure formed on an insulating layer of a substrate; and (2) a ferromagnetic material within the semiconductor fin enclosure. A top surface of the ferromagnetic material is below a top surface of the semiconductor fin enclosure. Numerous other aspects are provided.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: February 17, 2009
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Herbert Lei Ho, Louis Lu-Chen Hsu, Jack Allan Mandelman
  • Patent number: 7491618
    Abstract: Semiconductor structures and methods for suppressing latch-up in bulk CMOS devices. The semiconductor structure comprises first and second adjacent doped wells formed in the semiconductor material of a substrate. A trench, which includes a base and first sidewalls between the base and the top surface, is defined in the substrate between the first and second doped wells. The trench is partially filled with a conductor material that is electrically coupled with the first and second doped wells. Highly-doped conductive regions may be provided in the semiconductor material bordering the trench at a location adjacent to the conductive material in the trench.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: February 17, 2009
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, David Vaclav Horak, Charles William Koburger, III, Jack Allan Mandelman, William Robert Tonti
  • Patent number: 7482672
    Abstract: Semiconductor device structures for use with bipolar junction transistors and methods of fabricating such semiconductor device structures. The semiconductor device structure comprises a semiconductor body having a top surface and sidewalls extending from the top surface to an insulating layer, a first region including a first semiconductor material with a first conductivity type, and a second region including a second semiconductor material with a second conductivity type. The first and second regions each extend across the top surface and the sidewalls of the semiconductor body. The device structure further comprises a junction defined between the first and second regions and extending across the top surface and the sidewalls of the semiconductor body.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: January 27, 2009
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Louis Lu-Chen Hsu, Jack Allan Mandelman
  • Patent number: 7479437
    Abstract: A method of reducing contact resistance on a silicon-on-insulator includes exposing sidewalls and a portion of a top surface of a source/drain region of the device, forming a porous silicon layer within a surface of the source/drain region, implanting dopants in the source/drain region, and forming a silicide layer over the source/drain region. The porous silicon layer is formed by forming a layer of p+ doping on the exposed sidewalls and portion of the top surface of the source/drain region, forming a nitride liner over the device, including the source/drain region and the layer of p+ doping, forming a planarized resist over the nitride liner, recessing the planarized resist and etching the nitride liner to expose portions of the source/drain region, and forming the porous silicon layer on the exposed portions of the source drain region.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: January 20, 2009
    Assignee: International Business Machines Corporation
    Inventors: Brian J Greene, Louis Lu-Chen Hsu, Jack Allan Mandelman, Chun-Yung Sung
  • Patent number: 7473985
    Abstract: A semiconductor structure with an insulating layer on a silicon substrate, a plurality of electrically-isolated silicon-on-insulator (SOI) regions separated from the substrate by the insulating layer, and a plurality of electrically-isolated silicon bulk regions extending through the insulating layer to the substrate. Each of one number of the SOI regions is oriented with a first crystal orientation and each of another number of the SOI regions is oriented with a second crystal orientation that differs from the first crystal orientation. The bulk silicon regions are each oriented with a third crystal orientation. Damascene or imprinting methods of forming the SOI regions and bulk silicon regions are also provided.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: January 6, 2009
    Assignee: International Business Machines Corporation
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti
  • Publication number: 20090001426
    Abstract: Embodiments of the invention generally relate to semiconductor devices, and more specifically to interconnecting semiconductor devices. A silicide layer may be formed on selective areas of a fin structure connecting one or more semiconductor devices or semiconductor device components. By providing silicided fin structures to locally interconnect semiconductor devices, the use of metal contacts and metal layers may be obviated, thereby allowing formation of smaller, less complex circuits.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Kangguo Cheng, Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti
  • Publication number: 20090007036
    Abstract: Embodiments of the invention generally relate to methods, systems and design structures for semiconductor devices, and more specifically to interconnecting semiconductor devices. A silicide layer may be formed on selective areas of a fin structure connecting one or more semiconductor devices or semiconductor device components. By providing silicided fin structures to locally interconnect semiconductor devices, the use of metal contacts and metal layers may be obviated, thereby allowing formation of smaller, less complex circuits.
    Type: Application
    Filed: October 26, 2007
    Publication date: January 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kangguo Cheng, Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti
  • Publication number: 20090007037
    Abstract: Embodiments of the invention generally relate to methods, systems and design structures for semiconductor devices and more specifically to forming partially silicided and fully silicided structures. Fabricating the partially silicided and fully silicided structures may involve creating one or more gate stacks. A polysilicon layer of a first gate stack may be exposed and a first metal layer may be deposited thereon to create a partially silicided structure. Thereafter, a polysilicon layer of a second gate stack may be exposed and a second metal layer may be deposited thereon to form a fully silicided structure. In some embodiments, the polysilicon layers of one or more gate stacks may not be exposed, and resistors may be formed with the unsilicided polysilicon layers.
    Type: Application
    Filed: October 26, 2007
    Publication date: January 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti, Chih-Chao Yang
  • Publication number: 20090001477
    Abstract: Embodiments of the invention generally relate to semiconductor devices and more specifically to forming partially silicided and fully silicided structures. Fabricating the partially silicided and fully silicided structures may involve creating one or more gate stacks. A polysilicon layer of a first gate stack may be exposed and a first metal layer may be deposited thereon to create a partially silicided structure. Thereafter, a polysilicon layer of a second gate stack may be exposed and a second metal layer may be deposited thereon to form a fully silicided structure. In some embodiments, the polysilicon layers of one or more gate stacks may not be exposed, and resistors may be formed with the unsilicided polysilicon layers.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti, Chih-Chao Yang
  • Patent number: 7470929
    Abstract: Techniques are provided for fuse/anti-fuse structures, including an inner conductor structure, an insulating layer spaced outwardly of the inner conductor structure, an outer conductor structure disposed outwardly of the insulating layer, and a cavity-defining structure that defines a cavity, with at least a portion of the cavity-defining structure being formed from at least one of the inner conductor structure, the insulating layer, and the outer conductor structure. Methods of making and programming the fuse/anti-fuse structures are also provided.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: December 30, 2008
    Assignee: International Business Machines Corporation
    Inventors: Louis C. Hsu, Rajiv V. Joshi, Jack Allan Mandelman, Chih-Chao Yang
  • Patent number: 7465642
    Abstract: A semiconductor structure including a trench formed in a substrate and a buried isolation collar that extends about sidewalls of the trench. The buried isolation collar is constituted by an insulator formed from a buried porous region of substrate material. The porous region is formed from a buried doped region defined using masking and ion implantation or by masking the trench sidewalls and using dopant diffusion. Advantageously, the porous region is transformed to an oxide insulator by an oxidation process. The semiconductor structure may be a storage capacitor of a memory cell further having a buried plate about the trench and a capacitor node inside the trench that is separated from the buried plate by a node dielectric formed on the trench sidewalls.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: December 16, 2008
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Jack Allan Mandelman
  • Publication number: 20080283917
    Abstract: Methods of fabricating a semiconductor structure in which a body of monocrystalline silicon is formed on a sidewall of a sacrificial mandrel and semiconductor structures made by the methods. After the body of monocrystalline silicon is formed, the sacrificial material of the mandrel is removed selective to the monocrystalline silicon of the body. The mandrel may be composed of porous silicon and the body may be fabricated using either a semiconductor-on-insulator substrate or a bulk substrate. The body may be used to fabricate a fin body of a fin-type field effect transistor.
    Type: Application
    Filed: June 20, 2008
    Publication date: November 20, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kangguo Cheng, Jack Allan Mandelman
  • Publication number: 20080283920
    Abstract: A semiconductor structure with an insulating layer on a silicon substrate, a plurality of electrically-isolated silicon-on-insulator (SOI) regions separated from the substrate by the insulating layer, and a plurality of electrically-isolated silicon bulk regions extending through the insulating layer to the substrate. Each of one number of the SOI regions is oriented with a first crystal orientation and each of another number of the SOI regions is oriented with a second crystal orientation that differs from the first crystal orientation. The bulk silicon regions are each oriented with a third crystal orientation. Damascene or imprinting methods of forming the SOI regions and bulk silicon regions are also provided.
    Type: Application
    Filed: July 30, 2008
    Publication date: November 20, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis Lu-Chen Hsu, Jack Allan Mandelman, William Robert Tonti
  • Publication number: 20080272412
    Abstract: A method (and system) of reducing contact resistance on a silicon-on-insulator device, including controlling a silicide depth in a source-drain region of the device.
    Type: Application
    Filed: July 17, 2008
    Publication date: November 6, 2008
    Applicant: International Business Machines Corporation
    Inventors: Brian J. Greene, Louis Lu-Chen Hsu, Jack Allan Mandelman, Chun-Yung Sung
  • Publication number: 20080274597
    Abstract: A method (and system) of reducing contact resistance on a silicon-on-insulator device, including controlling a silicide depth in a source-drain region of the device.
    Type: Application
    Filed: July 17, 2008
    Publication date: November 6, 2008
    Applicant: International Business Machines Corporation
    Inventors: Brian J. Greene, Louis Lu-Chen Hsu, Jack Allan Mandelman, Chun-Yung Sung