Patents by Inventor Mark Eliot Masters

Mark Eliot Masters 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: 7674674
    Abstract: A memory gain cell for a memory circuit, a memory circuit formed from multiple memory gain cells, and methods of fabricating such memory gain cells and memory circuits. The memory gain cell includes a storage device capable of holding a stored electrical charge, a write device, and a read device. The read device includes a fin of semiconducting material, electrically-isolated first and second gate electrodes flanking the fin, and a source and drain formed in the fin adjacent to the first and the second gate electrodes. The first gate electrode is electrically coupled with the storage device. The first and second gate electrodes are operative for gating a region of the fin defined between the source and the drain to thereby regulate a current flowing from the source to the drain. When gated, the magnitude of the current is dependent upon the electrical charge stored by the storage device.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: March 9, 2010
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark Charles Hakey, David Vaclav Horak, Charles William Koburger, III, Mark Eliot Masters, Peter H. Mitchell
  • Patent number: 7566613
    Abstract: A memory gain cell for a memory circuit, a memory circuit formed from multiple memory gain cells, and methods of fabricating such memory gain cells and memory circuits. The memory gain cell includes a storage device capable of holding a stored electrical charge, a write device, and a read device. The read device includes a fin of semiconducting material, electrically-isolated first and second gate electrodes flanking the fin, and a source and drain formed in the fin adjacent to the first and the second gate electrodes. The first gate electrode is electrically coupled with the storage device. The first and second gate electrodes are operative for gating a region of the fin defined between the source and the drain to thereby regulate a current flowing from the source to the drain. When gated, the magnitude of the current is dependent upon the electrical charge stored by the storage device.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: July 28, 2009
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark Charles Hakey, David Vaclav Horak, Charles William Koburger, III, Mark Eliot Masters, Peter H. Mitchell
  • Patent number: 7473633
    Abstract: Conductive paths in an integrated circuit are formed using multiple undifferentiated carbon nanotubes embedded in a conductive metal, which is preferably copper. Preferably, conductive paths include vias running between conductive layers. Preferably, composite vias are formed by forming a metal catalyst pad on a conductor at the via site, depositing and etching a dielectric layer to form a cavity, growing substantially parallel carbon nanotubes on the catalyst in the cavity, and filling the remaining voids in the cavity with copper. The next conductive layer is then formed over the via hole.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: January 6, 2009
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark Charles Hakey, David Vaclav Horak, Charles William Koburger, III, Mark Eliot Masters, Peter H Mitchell, Stanislav Polonsky
  • Publication number: 20080261363
    Abstract: A memory gain cell for a memory circuit, a memory circuit formed from multiple memory gain cells, and methods of fabricating such memory gain cells and memory circuits. The memory gain cell includes a storage device capable of holding a stored electrical charge, a write device, and a read device. The read device includes a fin of semiconducting material, electrically-isolated first and second gate electrodes flanking the fin, and a source and drain formed in the fin adjacent to the first and the second gate electrodes. The first gate electrode is electrically coupled with the storage device. The first and second gate electrodes are operative for gating a region of the fin defined between the source and the drain to thereby regulate a current flowing from the source to the drain. When gated, the magnitude of the current is dependent upon the electrical charge stored by the storage device.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 23, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshiharu Furukawa, Mark Charles Hakey, David Vaclav Horak, Charles William Koburger, Mark Eliot Masters, Peter H. Mitchell
  • Patent number: 7135773
    Abstract: Conductive paths in an integrated circuit are formed using multiple undifferentiated carbon nanotubes embedded in a conductive metal, which is preferably copper. Preferably, conductive paths include vias running between conductive layers. Preferably, composite vias are formed by forming a metal catalyst pad on a conductor at the via site, depositing and etching a dielectric layer to form a cavity, growing substantially parallel carbon nanotubes on the catalyst in the cavity, and filling the remaining voids in the cavity with copper. The next conductive layer is then formed over the via hole.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: November 14, 2006
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark Charles Hakey, David Vaclav Horak, Charles William Koburger, III, Mark Eliot Masters, Peter H. Mitchell, Stanislav Polonsky
  • Patent number: 7109546
    Abstract: A gain cell for a memory circuit, a memory circuit formed from multiple gain cells, and methods of fabricating such gain cells and memory circuits. The memory gain cell includes a storage capacitor, a write device electrically coupled with the storage capacitor for charging and discharging the storage capacitor to define a stored electrical charge, and a read device. The read device includes one or more semiconducting carbon nanotubes each electrically coupled between a source and drain. A portion of each semiconducting carbon nanotube is gated by the read gate and the storage capacitor to thereby regulate a current flowing through each semiconducting carbon nanotube from the source to the drain. The current is proportional to the electrical charge stored by the storage capacitor. In certain embodiments, the memory gain cell may include multiple storage capacitors.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: September 19, 2006
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark Charles Hakey, David Vaclav Horak, Charles William Koburger, III, Mark Eliot Masters, Peter H. Mitchell
  • Patent number: 6970372
    Abstract: A memory gain cell for a memory circuit, a memory circuit formed from multiple memory gain cells, and methods of fabricating such memory gain cells and memory circuits. The memory gain cell includes a storage device capable of holding a stored electrical charge, a write device, and a read device. The read device includes a fin of semiconducting material, electrically-isolated first and second gate electrodes flanking the fin, and a source and drain formed in the fin adjacent to the first and the second gate electrodes. The first gate electrode is electrically coupled with the storage device. The first and second gate electrodes are operative for gating a region of the fin defined between the source and the drain to thereby regulate a current flowing from the source to the drain. When gated, the magnitude of the current is dependent upon the electrical charge stored by the storage device.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: November 29, 2005
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Mark Charles Hakey, David Vaclav Horak, Charles William Koburger, III, Mark Eliot Masters, Peter H. Mitchell