Patents by Inventor Keith Edward Downes

Keith Edward Downes 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: 7915134
    Abstract: A MIM capacitor is formed on a semiconductor substrate having a top surface and including regions formed in the surface selected from a Shallow Trench Isolation (STI) region and a doped well having exterior surfaces coplanar with the semiconductor substrate. A capacitor lower plate is either a lower electrode formed on the STI region in the semiconductor substrate or a lower electrode formed by a doped well formed in the top surface of the semiconductor substrate that may have a silicide surface. A capacitor HiK dielectric layer is formed on or above the lower plate. A capacitor second plate is formed on the HiK dielectric layer above the capacitor lower plate. A dual capacitor structure with a top plate may be formed above the second plate with vias connected to the lower plate protected from the second plate by side wall spacers.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: March 29, 2011
    Assignee: International Business Machines Corporation
    Inventors: Anil Kumar Chinthakindi, Douglas Duane Coolbaugh, Keith Edward Downes, Ebenezer E. Eshun, Zhong-Xiang He, Robert Mark Rassel, Anthony Kendall Stamper, Kunal Vaed
  • Publication number: 20090004809
    Abstract: A MIM capacitor is formed on a semiconductor substrate having a top surface and including regions formed in the surface selected from a Shallow Trench Isolation (STI) region and a doped well having exterior surfaces coplanar with the semiconductor substrate. A capacitor lower plate is either a lower electrode formed on the STI region in the semiconductor substrate or a lower electrode formed by a doped well formed in the top surface of the semiconductor substrate that may have a silicide surface. A capacitor HiK dielectric layer is formed on or above the lower plate. A capacitor second plate is formed on the HiK dielectric layer above the capacitor lower plate. A dual capacitor structure with a top plate may be formed above the second plate with vias connected to the lower plate protected from the second plate by side wall spacers.
    Type: Application
    Filed: January 8, 2008
    Publication date: January 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anil Kumar Chinthakindi, Douglas Duane Coolbaugh, Keith Edward Downes, Ebenezer E. Eshun, Zhong-Xiang He, Robert Mark Rassel, Anthony Kendall Stamper, Kunal Vaed
  • Patent number: 7361950
    Abstract: A MIM capacitor is formed on a semiconductor substrate having a top surface and including regions formed in the surface selected from a Shallow Trench Isolation (STI) region and a doped well having exterior surfaces coplanar with the semiconductor substrate. A capacitor lower plate is either a lower electrode formed on the STI region in the semiconductor substrate or a lower electrode formed by a doped well formed in the top surface of the semiconductor substrate that may have a silicide surface. A capacitor HiK dielectric layer is formed on or above the lower plate. A capacitor second plate is formed on the HiK dielectric layer above the capacitor lower plate. A dual capacitor structure with a top plate may be formed above the second plate with vias connected to the lower plate protected from the second plate by sidewall spacers.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: April 22, 2008
    Assignee: International Business Machines Corporation
    Inventors: Anil Kumar Chinthakindi, Douglas Duane Coolbaugh, Keith Edward Downes, Ebenezer E. Eshun, Zhong-Xiang He, Robert Mark Rassel, Anthony Kendall Stamper, Kunal Vaed