Patents by Inventor Douglas Hershberger

Douglas Hershberger 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).

  • Publication number: 20070292918
    Abstract: A heterologous expression in a host Pseudomonas bacteria of an optimized polynucleotide sequence encoding a protein.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 20, 2007
    Inventors: Steven Stelman, Douglas Hershberger, Tom Ramseier
  • Publication number: 20060264026
    Abstract: A circuit is provided which prevents dendrite formation on interconnects during semiconductor device processing due to a dendrite-forming current. The circuit includes a switch located in at least one of the dendrite-forming current paths. The switch is configured to be open or in the “off” state during processing, and is configured to be closed or in the “on” state after processing to allow proper functioning of the semiconductor device. The switch may include an nFET or pFET, depending on the environment in which it is used to control or prevent dendrite formation. The switch may be configured to change to the “closed” state when an input signal is provided during operation of the fabricated semiconductor device.
    Type: Application
    Filed: August 1, 2006
    Publication date: November 23, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Douglas Hershberger, Steven Voldman, Michael Zierak
  • Publication number: 20060110909
    Abstract: A circuit is provided which prevents dendrite formation on interconnects during semiconductor device processing due to a dendrite-forming current. The circuit includes a switch located in at least one of the dendrite-forming current paths. The switch is configured to be open or in the “off” state during processing, and is configured to be closed or in the “on” state after processing to allow proper functioning of the semiconductor device. The switch may include an nFET or pFET, depending on the environment in which it is used to control or prevent dendrite formation. The switch may be configured to change to the “closed” state when an input signal is provided during operation of the fabricated semiconductor device.
    Type: Application
    Filed: November 23, 2004
    Publication date: May 25, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Douglas Hershberger, Steven Voldman, Michael Zierak
  • Publication number: 20060043454
    Abstract: The present invention provides a varactor that has increased tunability and a high quality factor Q as well as a method of fabricating the varactor. The method of the present invention can be integrated into a conventional CMOS processing scheme or into a conventional BiCMOS processing scheme. The method includes providing a structure that includes a semiconductor substrate of a first conductivity type and optionally a subcollector or isolation well (i.e., doped region) of a second conductivity type located below an upper region of the substrate, the first conductivity type is different from said second conductivity type. Next, a plurality of isolation regions are formed in the upper region of the substrate and then a well region is formed in the upper region of the substrate. In some cases, the doped region is formed at this point of the inventive process. The well region includes outer well regions of the second conductivity type and an inner well region of the first conductivity type.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 2, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Douglas Coolbaugh, Douglas Hershberger, Robert Rassel