Patents by Inventor Timothy J. Brosnihan

Timothy J. Brosnihan 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: 7821084
    Abstract: Rather than increasing the mass of the structure, the structure in a sensor system suspends its substrate from some mechanical ground. Motion of the substrate relative to the mechanical ground thus provides the movement information. To those ends, the sensor system includes a base, a substrate, and a flexible member suspended from at least a portion of the substrate. At least a portion of the flexible member is capable of moving relative to at least a portion of the substrate. In addition, the flexible member is secured to the base, thus causing the substrate to be movable relative to the base. Moreover, the mass of the substrate is greater than the mass of the flexible member. The substrate and flexible member are configured to interact to produce a motion signal identifying movement of the base.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: October 26, 2010
    Assignee: Analog Devices, Inc.
    Inventors: John R. Martin, Timothy J. Brosnihan, Michael W. Judy, Xin Zhang
  • Patent number: 7816165
    Abstract: A method of forming a MEMS device provides a wafer having a base with a conductive portion. The wafer also has an intermediate conductive layer. After it provides the wafer, the method adds a diaphragm layer to the wafer. The method removes at least a portion of the intermediate conductive layer to form a cavity between the diaphragm layer and the base. At least a portion of the diaphragm layer is movable relative to the base. After it forms the cavity, the method seals the cavity.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: October 19, 2010
    Assignee: Analog Devices, Inc.
    Inventors: Timothy J. Brosnihan, Robert E. Sulouff, Jr., John M. Sledziewski
  • Patent number: 7795695
    Abstract: A method of forming a microphone having a variable capacitance first deposits high temperature deposition material on a die. The high temperature material ultimately forms structure that contributes to the variable capacitance. The method then forms circuitry on the die after depositing the deposition material. The circuitry is configured to detect the variable capacitance.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: September 14, 2010
    Assignee: Analog Devices, Inc.
    Inventors: Jason W. Weigold, John R. Martin, Timothy J. Brosnihan
  • Publication number: 20090244678
    Abstract: Display devices incorporating shutter-based light modulators are disclosed along with methods of manufacturing such devices. The methods are compatible with thin-film manufacturing processes known in the art and result in displays having lower power-consumption.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Applicant: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, IV, Jasper Lodewyk Steyn, Timothy J. Brosnihan, Jignesh Gandhi, John J. Fijol, Richard S. Payne, Roger Barton
  • Publication number: 20090195855
    Abstract: The invention relates to a spatial light modulator including a substrate having a surface and a modulation assembly coupled to the substrate including a modulation element and a compliant beam. The modulation assembly is configured to limit the bending of the compliant beam towards an opposing surface that would otherwise be caused by inherent stresses within the compliant beam. The invention also relates to a method of manufacturing a spatial light modulator including the steps of forming and releasing a modulation assembly that has a modulation element and a compliant beam formed in a pre-release position to have an intended inherent stress state. As a result of the stress state in the compliant beam, upon release of the compliant beam, the compliant beam bends into a rest position which is different than the pre-release position, where the rest position is based in part on the intended inherent stress state.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 6, 2009
    Applicant: Pixtronix, Inc.
    Inventors: Jasper Lodewyk Steyn, Timothy J. Brosnihan, Joyce H. Wu, Mark B. Andersson, Richard S. Payne, John J. Fijol, Roger W. Barton, Nesbitt W. Hagood
  • Publication number: 20090114954
    Abstract: A method of forming a MEMS device provides a wafer having a base with a conductive portion. The wafer also has an intermediate conductive layer. After it provides the wafer, the method adds a diaphragm layer to the wafer. The method removes at least a portion of the intermediate conductive layer to form a cavity between the diaphragm layer and the base. At least a portion of the diaphragm layer is movable relative to the base. After it forms the cavity, the method seals the cavity.
    Type: Application
    Filed: January 9, 2009
    Publication date: May 7, 2009
    Applicant: Analog Devices, Inc.
    Inventors: Timothy J. Brosnihan, Robert E. Sulouff, JR., John M. Sledziewski
  • Patent number: 7491566
    Abstract: A method of forming a MEMS device provides a wafer having a base, a first conductive layer, a second conductive layer, and an intermediate conductive layer. After it provides the wafer, the method removes at least a portion of the intermediate conductive layer to form a cavity between the first and second conductive layers. At least a portion of the first conductive layer is movable relative to the base to form a diaphragm, while the second conductive layer is substantially immovable relative to the base. After it forms the cavity, the method seals the cavity.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: February 17, 2009
    Assignee: Analog Devices, Inc.
    Inventors: Timothy J. Brosnihan, Robert E. Sulouff, Jr., John M. Sledziewski
  • Patent number: 7405852
    Abstract: Display devices incorporating shutter-based light modulators are disclosed along with methods of manufacturing such devices. The methods are compatible with thin-film manufacturing processes known in the art and result in displays having lower power-consumption.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: July 29, 2008
    Assignee: Pixtronix, Inc.
    Inventors: Timothy J. Brosnihan, Nesbitt W. Hagood, IV, Jasper Lodewyk Steyn, Jignesh Gandhi, John J. Fijol, Richard S. Payne, Roger Barton
  • Publication number: 20080158635
    Abstract: Display devices incorporating shutter-based light modulators are disclosed along with methods of manufacturing such devices. The methods are compatible with thin-film manufacturing processes known in the art and result in displays having lower power-consumption.
    Type: Application
    Filed: March 10, 2008
    Publication date: July 3, 2008
    Applicant: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, Jasper Lodewyk Steyn, Timothy J. Brosnihan, Jignesh Gandhi, John J. Fijol, Richard S. Payne, Roger Barton
  • Patent number: 7338614
    Abstract: A method of processing a semiconductor wafer provides a wafer, and then forms an organic mask on at least a portion of the wafer. The method then applies a vapor etching process to the wafer through holes in the organic mask.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: March 4, 2008
    Assignee: Analog Devices, Inc.
    Inventors: John R. Martin, Timothy J. Brosnihan
  • Patent number: 7327003
    Abstract: Rather than increasing the mass of the structure, the structure in a sensor system suspends its substrate from some mechanical ground. Motion of the substrate relative to the mechanical ground thus provides the movement information. To those ends, the sensor system includes a base, a substrate, and a flexible member suspended from at least a portion of the substrate. At least a portion of the flexible member is capable of moving relative to at least a portion of the substrate. In addition, the flexible member is secured to the base, thus causing the substrate to be movable relative to the base. Moreover, the mass of the substrate is greater than the mass of the flexible member. The substrate and flexible member are configured to interact to produce a motion signal identifying movement of the base.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: February 5, 2008
    Assignee: Analog Devices, Inc.
    Inventors: John R. Martin, Timothy J. Brosnihan, Michael W. Judy, Xin Zhang
  • Patent number: 7138694
    Abstract: A SOI-based MEMS device has a base layer, a device layer, and an insulator layer between the base layer and the device layer. The device also has a deposited layer having a portion that is spaced from the device layer. The device layer is between the insulator layer and the deposited layer.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: November 21, 2006
    Assignee: Analog Devices, Inc.
    Inventors: Thomas Kieran Nunan, Timothy J. Brosnihan
  • Patent number: 6960488
    Abstract: A microfabricated device having a high vertical aspect ratio and electrical isolation between a structure region and a circuit region. The device may be fabricated on a single substrate and may include electrical interconnections between the structure region and the circuit region. The device includes a substrate and an isolation trench surrounding a structure region in the substrate. The isolation trench includes a lining of a dielectric insulative material. A plurality of microstructure elements are located in the structure region and are laterally anchored to the isolation trench.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: November 1, 2005
    Assignee: The Regents of the University of California
    Inventors: Timothy J. Brosnihan, James Bustillo, William A. Clark
  • Publication number: 20040147055
    Abstract: A microfabricated device having a high vertical aspect ratio and electrical isolation between a structure region and a circuit region. The device may be fabricated on a single substrate and may include electrical interconnections between the structure region and the circuit region. The device includes a substrate and an isolation trench surrounding a structure region in the substrate. The isolation trench includes a lining of a dielectric insulative material. A plurality of microstructure elements are located in the structure region and are laterally anchored to the isolation trench.
    Type: Application
    Filed: June 29, 1999
    Publication date: July 29, 2004
    Inventors: TIMOTHY J. BROSNIHAN, JAMES BUSTILLO, WILLIAM A. CLARK
  • Patent number: 6121552
    Abstract: A microfabricated device having a high vertical aspect ratio and electrical isolation between a structure region and a circuit region. The device may be fabricated on a single substrate and may include electrical interconnections between the structure region and the circuit region. The device includes a substrate and an isolation trench surrounding a structure region in the substrate. The isolation trench includes a lining of a dielectric insulative material. A plurality of electromechanical elements are located in the structure region and are laterally anchored to the isolation trench.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: September 19, 2000
    Assignee: The Regents of the University of Caliofornia
    Inventors: Timothy J. Brosnihan, James Bustillo, William A. Clark