Patents by Inventor David Louis Harame

David Louis Harame 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: 8415763
    Abstract: Embodiments of the invention include a method for forming a tunable semiconductor device and the resulting structure. The invention comprises forming a semiconductor substrate. Next, pattern a first mask over the semiconductor substrate. Dope regions of the semiconductor substrate not protected by the first mask to form a first discontinuous subcollector. Remove the first mask. Pattern a second mask over the semiconductor substrate. Dope regions of the semiconductor substrate not protected by the second mask and on top of the first discontinuous subcollector to form a second discontinuous subcollector. Remove the second mask and form a collector above the second discontinuous subcollector. Breakdown voltage of the device may be tuned by varying the gaps separating doped regions within the first and second discontinuous subcollectors. Doped regions of the first and second discontinuous subcollectors may be formed in a mesh pattern.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 9, 2013
    Assignee: International Business Machines Corporation
    Inventors: David Louis Harame, Alvin Jose Joseph, Qizhi Liu, Ramana Murty Malladi
  • Publication number: 20120248573
    Abstract: Embodiments of the invention include a method for forming a tunable semiconductor device and the resulting structure. The invention comprises forming a semiconductor substrate. Next, pattern a first mask over the semiconductor substrate. Dope regions of the semiconductor substrate not protected by the first mask to form a first discontinuous subcollector. Remove the first mask. Pattern a second mask over the semiconductor substrate. Dope regions of the semiconductor substrate not protected by the second mask and on top of the first discontinuous subcollector to form a second discontinuous subcollector. Remove the second mask and form a collector above the second discontinuous subcollector. Breakdown voltage of the device may be tuned by varying the gaps separating doped regions within the first and second discontinuous subcollectors. Doped regions of the first and second discontinuous subcollectors may be formed in a mesh pattern.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David Louis Harame, Alvin Jose Joseph, Qizhi Liu, Ramana Murty Malladi
  • Patent number: 6927440
    Abstract: An interconnection wiring system incorporating two levels of interconnection wiring separated by a first dielectric, a capacitor formed by a second dielectric, a bottom electrode of the lower interconnection wiring or a via and a top electrode of the upper interconnection wiring or a separate metal layer. The invention overcomes the problem of leakage current and of substrate stray capacitance by positioning the capacitor between two levels of interconnection wiring.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: August 9, 2005
    Assignee: International Business Machines Corporation
    Inventors: Nancy Anne Greco, David Louis Harame, Gary Robert Hueckel, Joseph Thomas Kocis, Dominique Nguyen Ngoc, Kenneth Jay Stein
  • Patent number: 6635527
    Abstract: An interconnection wiring system incorporating two levels of interconnection wiring separated by a first dielectric, a capacitor formed by a second dielectric, a bottom electrode of the lower interconnection wiring or a via and a top electrode of the upper interconnection wiring or a separate metal layer. The invention overcomes the problem of leakage current and of substrate stray capacitance by positioning the capacitor between two levels of interconnection wiring.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: October 21, 2003
    Assignee: International Business Machines Corporation
    Inventors: Nancy Anne Greco, David Louis Harame, Gary Robert Hueckel, Joseph Thomas Kocis, Dominique Nguyen Ngoc, Kenneth Jay Stein
  • Patent number: 6413868
    Abstract: Disclosed is a manufacturable silicon-based modular integrated circuit structure having performance characteristics comparable to high frequency GaAs-based integrated circuit structures, comprising materials and made in process steps which are compatible with existing low cost silicon-based integrated circuit processing.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: July 2, 2002
    Assignee: International Business Machines Corporation
    Inventors: Thomas Adam Bartush, David Louis Harame, John Chester Malinowski, Dawn Tudryn Piciacchio, Christopher Lee Tessler, Richard Paul Volant
  • Patent number: 6259148
    Abstract: Disclosed is a manufacturable silicon-based modular integrated circuit structure having performance characteristics comparable to high frequency GaAs-based integrated circuit structures, comprising materials and made in process steps which are compatible with existing low cost silicon-based integrated circuit processing.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: July 10, 2001
    Assignee: International Business Machines Corporation
    Inventors: Thomas Adam Bartush, David Louis Harame, John Chester Malinowski, Dawn Tudryn Piciacchio, Christopher Lee Tessler, Richard Paul Volant
  • Patent number: 5926359
    Abstract: An interconnection wiring system incorporating two levels of interconnection wiring separated by a first dielectric, a capacitor formed by a second dielectric, a bottom electrode of the lower interconnection wiring or a via and a top electrode of the upper interconnection wiring or a separate metal layer. The invention overcomes the problem of leakage current and of substrate stray capacitance by positioning the capacitor between two levels of interconnection wiring.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: July 20, 1999
    Assignee: International Business Machines Corporation
    Inventors: Nancy Anne Greco, David Louis Harame, Gary Robert Hueckel, Joseph Thomas Kocis, Dominique Nguyen Ngoc, Kenneth Jay Stein