Patents by Inventor Douglas D. Coolbaugh

Douglas D. Coolbaugh 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: 9171778
    Abstract: A method and a semiconductor device are provided. The semiconductor device includes a partial via etched in a stacked structure and a trough above the partial via. The method includes performing thick wiring using selective etching while etching the partial via to an etch stop layer.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: October 27, 2015
    Assignee: GLOBALFOUNDRIES U.S. 2 LLC
    Inventors: Douglas D. Coolbaugh, Keith E. Downes, Peter J. Lindgren, Anthony K. Stamper
  • Patent number: 8881379
    Abstract: A resistor with heat sink is provided. The heat sink includes a conductive path having metal or other thermal conductor having a high thermal conductivity. To avoid shorting the electrical resistor to ground with the thermal conductor, a thin layer of high thermal conductivity electrical insulator is interposed between the thermal conductor and the body of the resistor. Accordingly, a resistor can carry large amounts of current because the high conductivity thermal conductor will conduct heat away from the resistor to a heat sink. Various configurations of thermal conductors and heat sinks are provided offering good thermal conductive properties in addition to reduced parasitic capacitances and other parasitic electrical effects, which would reduce the high frequency response of the electrical resistor.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: November 11, 2014
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Ebenezer E. Eshun, Terence B. Hook, Robert M. Rassel, Edmund J. Sprogis, Anthony K. Stamper, William J. Murphy
  • Patent number: 8872281
    Abstract: A trench contact silicide is formed on an inner wall of a contact trench that reaches to a buried conductive layer in a semiconductor substrate to reduce parasitic resistance of a reachthrough structure. The trench contact silicide is formed at the bottom, on the sidewalls of the trench, and on a portion of the top surface of the semiconductor substrate. The trench is subsequently filled with a middle-of-line (MOL) dielectric. A contact via may be formed on the trench contact silicide. The trench contact silicide may be formed through a single silicidation reaction with a metal layer or through multiple silicidation reactions with multiple metal layers.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: October 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Jeffrey B. Johnson, Peter J. Lindgren, Xuefeng Lie, James S. Nakos, Bradley A. Omer, Robert M. Rassel, David C. Sheridan
  • Publication number: 20140239498
    Abstract: A trench contact silicide is formed on an inner wall of a contact trench that reaches to a buried conductive layer in a semiconductor substrate to reduce parasitic resistance of a reachthrough structure. The trench contact silicide is formed at the bottom, on the sidewalls of the trench, and on a portion of the top surface of the semiconductor substrate. The trench is subsequently filled with a middle-of-line (MOL) dielectric. A contact via may be formed on the trench contact silicide. The trench contact silicide may be formed through a single silicidation reaction with a metal layer or through multiple silicidation reactions with multiple metal layers.
    Type: Application
    Filed: August 9, 2012
    Publication date: August 28, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Douglas D. Coolbaugh, Jeffrey B. Johnson, Peter J. Lindgren, Xuefeng Liu, James S. Nakos, Bradley A. Orner, Robert M. Rassel, David C. Sheridan
  • Patent number: 8753950
    Abstract: A method and semiconductor device. In the method, at least one partial via is etched in a stacked structure and a border is formed about the at least one partial via. The method further includes performing thick wiring using selective etching while continuing via etching to at least one etch stop layer.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: June 17, 2014
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Keith E. Downes, Peter J. Lindgren, Anthony K. Stamper
  • Patent number: 8749293
    Abstract: A programmable passive device comprising a first node and a second node. A plurality of passive device elements electrically coupled to the first node. A plurality of switches are electrically coupled to at least the second node and selectively coupled to a number of the plurality of passive device elements to provide the programmable passive device with a pre-determined value.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 10, 2014
    Assignee: International Business Machines Corporation
    Inventors: Fen Chen, Douglas D. Coolbaugh, Baozhen Li
  • Publication number: 20140151899
    Abstract: A method and a semiconductor device are provided. The semiconductor device includes a partial via etched in a stacked structure and a trough above the partial via. The method includes performing thick wiring using selective etching while etching the partial via to an etch stop layer.
    Type: Application
    Filed: January 28, 2014
    Publication date: June 5, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Douglas D. COOLBAUGH, Keith E. DOWNES, Peter J. LINDGREN, Anthony K. STAMPER
  • Patent number: 8609505
    Abstract: A capacitor structure includes a semiconductor substrate; a first capacitor plate positioned on the semiconductor substrate, the first capacitor plate including a polysilicon structure having a surrounding spacer; a silicide layer formed in a first portion of an upper surface of the first capacitor plate; a capacitor dielectric layer formed over a second portion of the upper surface of the first capacitor plate and extending laterally beyond the spacer to contact the semiconductor substrate; a contact in an interlayer dielectric (ILD), the contact contacting the silicide layer and a first metal layer over the ILD; and a second capacitor plate over the capacitor dielectric layer, wherein a metal-insulator-metal (MIM) capacitor is formed by the first capacitor plate, the capacitor dielectric layer and the second capacitor plate and a metal-insulator-semiconductor (MIS) capacitor is formed by the second capacitor plate, the capacitor dielectric layer and the semiconductor substrate.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: December 17, 2013
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Ebenezer E. Eshun, Robert M. Rassel, Anthony K. Stamper
  • Patent number: 8435864
    Abstract: A method of fabricating a MIM capacitor is provided. The method includes providing a substrate including a dielectric layer formed on a first conductive layer and a second conductive layer formed over the dielectric layer, and patterning a mask on the second conductive layer. Exposed portions of the second conductive layer are removed to form an upper plate of a MIM capacitor having edges substantially aligned with respective edges of the mask. The upper plate is undercut so that edges of the upper plate are located under the mask. Exposed portions of the dielectric layer and the first conductive layer are removed using the mask to form a capacitor dielectric layer and a lower plate of the MIM capacitor having edges substantially aligned with respective edges of the mask.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: May 7, 2013
    Assignee: International Business Machines Corporation
    Inventors: Anil K. Chinthakindi, Douglas D. Coolbaugh, Keith E. Downes, Ebenezer E. Eshun, Zhong-Xiang He, Robert M. Rassel, Anthony K. Stamper
  • Patent number: 8378450
    Abstract: An interdigitated structure may include at least one first metal line, at least one second metal line parallel to the at least one first metal line and separated from the at least one first metal line, and a third metal line contacting ends of the at least one first metal line and separated from the at least one second metal line. The at least one first metal line does not vertically contact any metal via and at least one second metal line may vertically contact at least one metal via. Multiple layers of interdigitated structure may be vertically stacked. Alternately, an interdigitated structure may include a plurality of first metal lines and a plurality of second metal lines, each metal line not vertically contacting any metal via. Multiple instances of interdigitated structure may be laterally replicated and adjoined, with or without rotation, and/or vertically stacked to form a capacitor.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: February 19, 2013
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Douglas D. Coolbaugh, Ebenezer E. Eshun, Zhong-Xiang He
  • Patent number: 8338265
    Abstract: A trench contact silicide is formed on an inner wall of a contact trench that reaches to a buried conductive layer in a semiconductor substrate to reduce parasitic resistance of a reachthrough structure. The trench contact silicide is formed at the bottom, on the sidewalls of the trench, and on a portion of the top surface of the semiconductor substrate. The trench is subsequently filled with a middle-of-line (MOL) dielectric. A contact via may be formed on the trench contact silicide. The trench contact silicide may be formed through a single silicidation reaction with a metal layer or through multiple silicidation reactions with multiple metal layers.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: December 25, 2012
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Jeffrey B. Johnson, Peter J. Lindgren, Xuefeng Liu, James S. Nakos, Bradley A. Orner, Robert M. Rassel, David C. Sheridan
  • Patent number: 8294505
    Abstract: A programmable passive device comprising a first node and a second node. A plurality of passive device elements electrically coupled to the first node. A plurality of switches are electrically coupled to at least the second node and selectively coupled to a number of the plurality of passive device elements to provide the programmable passive device with a pre-determined value.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: October 23, 2012
    Assignee: International Business Machines Corporation
    Inventors: Fen Chen, Douglas D. Coolbaugh, Baozhen Li
  • Publication number: 20120261724
    Abstract: A programmable passive device comprising a first node and a second node. A plurality of passive device elements electrically coupled to the first node. A plurality of switches are electrically coupled to at least the second node and selectively coupled to a number of the plurality of passive device elements to provide the programmable passive device with a pre-determined value.
    Type: Application
    Filed: June 21, 2012
    Publication date: October 18, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Fen Chen, Douglas D. Coolbaugh, Baozhen Li
  • Publication number: 20120214280
    Abstract: A resistor with heat sink is provided. The heat sink includes a conductive path having metal or other thermal conductor having a high thermal conductivity. To avoid shorting the electrical resistor to ground with the thermal conductor, a thin layer of high thermal conductivity electrical insulator is interposed between the thermal conductor and the body of the resistor. Accordingly, a resistor can carry large amounts of current because the high conductivity thermal conductor will conduct heat away from the resistor to a heat sink. Various configurations of thermal conductors and heat sinks are provided offering good thermal conductive properties in addition to reduced parasitic capacitances and other parasitic electrical effects, which would reduce the high frequency response of the electrical resistor.
    Type: Application
    Filed: May 1, 2012
    Publication date: August 23, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Douglas D. COOLBAUGH, Ebenezer E. ESHUN, Terence B. HOOK, Robert M. RASSEL, Edmund J. SPROGIS, Anthony K. STAMPER, William J. MURPHY
  • Patent number: 8236663
    Abstract: A method and semiconductor device. In the method, at least one partial via is etched in a stacked structure and a border is formed about the at least one partial via. The method further includes performing thick wiring using selective etching while continuing via etching to at least one etch stop layer.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: August 7, 2012
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Keith E. Downes, Peter J Lindgren, Anthony K. Stamper
  • Patent number: 8230586
    Abstract: A method of cooling a resistor is provided. The method includes forming a first electrical insulator having a high thermal conductivity in thermal contact with an electrically resistive pathway and forming a substrate adjacent the electrical insulator. The method further includes forming a first electrical conductor having a high thermal conductivity within the second substrate and in thermal contact with the electrical insulator.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: July 31, 2012
    Assignee: International Business Machines Corporation
    Inventors: Douglas D Coolbaugh, Ebenezer E Eshun, Terence B Hook, Robert M Rassel, Edmund J Sprogis, Anthony K Stamper, William J Murphy
  • Publication number: 20120190164
    Abstract: A method and semiconductor device. In the method, at least one partial via is etched in a stacked structure and a border is formed about the at least one partial via. The method further includes performing thick wiring using selective etching while continuing via etching to at least one etch stop layer.
    Type: Application
    Filed: March 28, 2012
    Publication date: July 26, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Douglas D. COOLBAUGH, Keith E. DOWNES, Peter J. LINDGREN, Anthony K. STAMPER
  • Patent number: 8227849
    Abstract: The invention is directed to an improved capacitor that reduces edge defects and prevents yield failures. A first embodiment of the invention comprises a protective layer adjacent an interface of a conductive layer with the insulator, while the second embodiment of the invention comprises a protective layer on an insulator which is on a conductive layer.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: July 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: Ebenezer E Eshun, Ronald J Bolam, Douglas D Coolbaugh, Keith E Downes, Natalie B Feilchenfeld, Zhong-Xiang He
  • Publication number: 20120184081
    Abstract: A method of fabricating a MIM capacitor is provided. The method includes providing a substrate including a dielectric layer formed on a first conductive layer and a second conductive layer formed over the dielectric layer, and patterning a mask on the second conductive layer. Exposed portions of the second conductive layer are removed to form an upper plate of a MIM capacitor having edges substantially aligned with respective edges of the mask. The upper plate is undercut so that edges of the upper plate are located under the mask. Exposed portions of the dielectric layer and the first conductive layer are removed using the mask to form a capacitor dielectric layer and a lower plate of the MIM capacitor having edges substantially aligned with respective edges of the mask.
    Type: Application
    Filed: March 28, 2012
    Publication date: July 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anil K. CHINTHAKINDI, Douglas D. COOLBAUGH, Keith E. DOWNES, Ebenezer E. ESHUN, Zhong-Xiang HE, Robert M. RASSEL, Anthony K. STAMPER
  • Patent number: 8207568
    Abstract: Method of fabricating a MIM capacitor and MIM capacitor. The method includes providing a substrate including a dielectric layer formed on a first conductive layer and a second conductive layer formed over the dielectric layer, and patterning a mask on the second conductive layer. Exposed portions of the second conductive layer are removed to form an upper plate of a MIM capacitor having edges substantially aligned with respective edges of the mask. The upper plate is undercut so that edges of the upper plate are located under the mask. Exposed portions of the dielectric layer and the first conductive layer are removed using the mask to form a capacitor dielectric layer and a lower plate of the MIM capacitor having edges substantially aligned with respective edges of the mask.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: June 26, 2012
    Assignee: International Business Machines Corporation
    Inventors: Anil K. Chinthakindi, Douglas D. Coolbaugh, Keith E. Downes, Ebenezer E. Eshun, Zhong-Xiang He, Robert M. Rassel, Anthony K. Stamper