Patents by Inventor Patrick McMarr

Patrick McMarr 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: 20060194454
    Abstract: Oxide films are deposited under conditions generating a silicon-rich oxide in which silicon nanoclusters form either during deposition or during subsequent annealing. Such deposition conditions include those producing films with optical indices (n) greater than 1.46. The method of the present invention reduces the TID radiation-induced shifts for the oxides.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 31, 2006
    Inventors: Harold Hughes, Bernard Mrstik, Reed Lawrence, Patrick McMarr
  • Publication number: 20050082489
    Abstract: A neutron detection device includes a neutron conversion layer in close proximity to an active semiconductor layer. The device is preferably based on the modification of existing conventional semiconductor memory devices. The device employs a conventional SRAM memory device that includes an SOI substrate. The SOI substrate includes an active semiconductor device layer, a base substrate and an insulating layer between the active semiconductor device layer and the base substrate. The base substrate layer is removed from the memory device by lapping, grinding and/or etching to expose the insulating layer. A neutron conversion layer is then formed on the insulating layer. The close proximity of the neutron conversion layer to the active semiconductor device layer yields substantial improvements in device sensitivity.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 21, 2005
    Inventors: Robert August, Harold Hughes, Patrick McMarr, Robert Whitlock
  • Patent number: 6071791
    Abstract: The radiation hardness of a microelectronic device is improved by implant dopant ions, such as Si, into an oxide layer. This implantation creates electron traps/recombination centers in the oxide layer. A subsequent anneal remove defects in the active silicon layer.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: June 6, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Harold Hughes, Patrick McMarr
  • Patent number: 5795813
    Abstract: The radiation hardness of a silicon-on-insulator structure is improved by planting dopant ions, such as Si, into the buried oxide layer. The dopant ions are implanted in the buried oxide layer, near, but not at, the active Si layer/buried oxide layer interface. This implantation creates electron traps/recombination centers in the buried oxide layer.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: August 18, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Harold Hughes, Patrick McMarr