Patents by Inventor James B. Colvin

James B. Colvin 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: 9465049
    Abstract: A method and apparatus for preparing electronic samples for a subsequent treatment, e.g., application of a failure analysis treatment. In one embodiment, an electronic device is mounted on a thermally controlled plate and a select temperature is applied thereto. While maintaining the select temperature applied to the thermally controlled plate, a sample preparation process is performed on the electronic device, such as, e.g., performing polishing, thinning, milling, lapping or extracting one or more semiconductor dies that form the electronic device.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: October 11, 2016
    Inventor: James B. Colvin
  • Patent number: 9411002
    Abstract: A thermal gradient is induced in a device-under-test (DUT) and used to determine the location of a defect. In one embodiment, a static thermal gradient is induced across at least a portion of the DUT along a first axis. The thermal gradient is incrementally walked along the first axis until the condition associated with the defect is triggered, thereby defining a first region. The thermal gradient is then induced along a second axis of the DUT and the process is repeated to define a second region. The location of the defect is determined to be the intersection of the first region with the second region.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: August 9, 2016
    Inventor: James B. Colvin
  • Publication number: 20140300378
    Abstract: A thermal gradient is induced in a device-under-test (DUT) and used to determine the location of a defect. In one embodiment, a static thermal gradient is induced across at least a portion of the DUT along a first axis. The thermal gradient is incrementally walked along the first axis until the condition associated with the defect is triggered, thereby defining a first region. The thermal gradient is then induced along a second axis of the DUT and the process is repeated to define a second region. The location of the defect is determined to be the intersection of the first region with the second region.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventor: James B. Colvin
  • Patent number: 8797052
    Abstract: A thermal gradient is induced in a device-under-test (DUT) and used to determine the location of a defect. In one embodiment, a laser creates a moving thermal gradient from a test site on the DUT and a respective time of flight for the thermal gradient to trigger a condition associated with the defect is determined. Repeating the time of flight testing at additional test site provides information used to trilaterate the defect in three dimensions. Alternately, a static thermal gradient is induced across at least a portion of the DUT along a first axis. The thermal gradient is incrementally walked along the first axis until the condition associated with the defect is triggered, thereby defining a first region. The thermal gradient is then induced along a second axis of the DUT and the process is repeated to define a second region. The location of the defect is determined to be the intersection of the first region with the second region.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: August 5, 2014
    Inventor: James B. Colvin
  • Publication number: 20130271169
    Abstract: A method and apparatus for preparing electronic samples for a subsequent treatment, e.g., application of a failure analysis treatment. In one embodiment, an electronic device is mounted on a thermally controlled plate and a select temperature is applied thereto. While maintaining the select temperature applied to the thermally controlled plate, a sample preparation process is performed on the electronic device, such as, e.g., performing polishing, thinning, milling, lapping or extracting one or more semiconductor dies that form the electronic device.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 17, 2013
    Inventor: James B. Colvin
  • Patent number: 8400175
    Abstract: A scanning/imaging system wherein an external stimulus is used for exciting a device under test (DUT). A stimulus source is included for providing a stationary stimulus with a controllable spot size to a device under test (DUT), the controllable spot size covering a portion of the DUT for excitation by the stationary stimulus. A sensor is operable for capturing at least one of a functional response signal and an optical image signal emanating from the DUT portion. A linear positioning device is operable to facilitate scanning of remaining portions of the DUT until a predetermined area thereof has been traversed. A controller is operably coupled to the linear positioning device, stimulus source and the sensor for providing the overall control thereof.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: March 19, 2013
    Inventor: James B. Colvin
  • Publication number: 20110115510
    Abstract: A thermal gradient is induced in a device-under-test (DUT) and used to determine the location of a defect. In one embodiment, a laser creates a moving thermal gradient from a test site on the DUT and a respective time of flight for the thermal gradient to trigger a condition associated with the defect is determined. Repeating the time of flight testing at additional test site provides information used to trilaterate the defect in three dimensions. Alternately, a static thermal gradient is induced across at least a portion of the DUT along a first axis. The thermal gradient is incrementally walked along the first axis until the condition associated with the defect is triggered, thereby defining a first region. The thermal gradient is then induced along a second axis of the DUT and the process is repeated to define a second region. The location of the defect is determined to be the intersection of the first region with the second region.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 19, 2011
    Inventor: James B. Colvin
  • Publication number: 20110115518
    Abstract: A scanning/imaging system wherein an external stimulus is used for exciting a device under test (DUT). A stimulus source is included for providing a stationary stimulus with a controllable spot size to a device under test (DUT), the controllable spot size covering a portion of the DUT for excitation by the stationary stimulus. A sensor is operable for capturing at least one of a functional response signal and an optical image signal emanating from the DUT portion. A linear positioning device is operable to facilitate scanning of remaining portions of the DUT until a predetermined area thereof has been traversed. A controller is operably coupled to the linear positioning device, stimulus source and the sensor for providing the overall control thereof.
    Type: Application
    Filed: January 18, 2011
    Publication date: May 19, 2011
    Inventor: James B. Colvin
  • Patent number: 7872485
    Abstract: A scanning/imaging system wherein an external stimulus is used for exciting a device under test (DUT). A stimulus source is included for providing a stationary stimulus with a controllable spot size to a device under test (DUT), the controllable spot size covering a portion of the DUT for excitation by the stationary stimulus. A sensor is operable for capturing at least one of a functional response signal and an optical image signal emanating from the DUT portion. A linear positioning device is operable to facilitate scanning of remaining portions of the DUT until a predetermined area thereof has been traversed. A controller is operably coupled to the linear positioning device, stimulus source and the sensor for providing the overall control thereof.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: January 18, 2011
    Inventor: James B. Colvin
  • Patent number: 7323888
    Abstract: A scanning/imaging system wherein an external stimulus is used for exciting a device under test (DUT). A stimulus source is included for providing a stationary stimulus with a controllable spot size to a device under test (DUT), the controllable spot size covering a portion of the DUT for excitation by the stationary stimulus. A sensor is operable for capturing at least one of a functional response signal and an optical image signal emanating from the DUT portion. A linear positioning device is operable to facilitate scanning of remaining portions of the DUT until a predetermined area thereof has been traversed. A controller is operably coupled to the linear positioning device, stimulus source and the sensor for providing the overall control thereof.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: January 29, 2008
    Inventor: James B. Colvin
  • Patent number: 6608291
    Abstract: A portable induction heating system which utilizes a broadband high frequency high-power, low output impedance power generator formed from switching MOSFET devices. A voltage-controlled oscillator (VCO) or microprocessor-controlled signal generator drives a power output stage under feedback control so as to effectuate resonance at a high frequency in an induction coil assembly connected to the power generator. The power generator is operable with a switching regulator that can supply a fixed DC voltage, e.g., 12 to 48 V or a variable setpoint. The induction coil assembly includes a capacitive circuit portion connected to a conductive coil that can couple magnetic field to a susceptor. A microcontroller is provided for inputting operating parameters such as power, frequency, duty cycle and duration, and is operable to auto-tune the VCO output under feedback control by sweeping frequency at startup as well as by controlling drift during operation under a changing load.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: August 19, 2003
    Inventors: Roberto A. Collins, James B. Colvin