Patents by Inventor Craig B. Prater

Craig B. Prater 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: 8087288
    Abstract: A scanned-stylus atomic force microscope (AFM) employing the optical lever technique, and method of operating the same. The AFM of the invention includes a light source and a scanned optical assembly which guides light emitted from the light source onto a point on a cantilever during scanning thereof. A moving light beam is thus created which will automatically track the movement of the cantilever during scanning. The invention also allows the light beam to be used to measure, calibrate or correct the motion of the scanning mechanism, and further allows viewing of the sample and cantilever using an optical microscope.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: January 3, 2012
    Assignee: Bruker Nano, Inc.
    Inventors: Craig B. Prater, James Massie, David A. Grigg, Virgil B. Elings, Paul K. Hansma, Barney Drake
  • Patent number: 6032518
    Abstract: A scanned-stylus atomic force microscope (AFM) employing the optical lever technique, and method of operating the same. The AFM of the invention includes a light source and a scanned optical assembly which guides light emitted from the light source onto point on a cantilever during scanning thereof. A moving light beam is thus created which will automatically track the movement of the cantilever during scanning. The invention also allows the light beam to be used to measure, calibrate or correct the motion of the scanning mechanism, and further allows viewing of the sample and cantilever using an optical microscope.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: March 7, 2000
    Assignee: Digital Instruments, Inc.
    Inventors: Craig B. Prater, James Massie, David A. Grigg, Virgil B. Elings, Paul K. Hansma, Barney Drake
  • Patent number: 5714682
    Abstract: A scanned-stylus atomic force microscope (AFM) employing the optical lever technique, and method of operating the same. The AFM of the invention includes a light source and a scanned optical assembly which quides light emitted from the light source onto a point on a cantilever during scanning thereof. A moving light beam is thus created which will automatically track the movement of the cantilever during scanning. The invention also allows the light beam to be used to measure, calibrate or correct the motion of the scanning mechanism, and further allows viewing of the sample and cantilever using an optical microscope.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: February 3, 1998
    Assignees: Digital Instruments, Inc., The Regents of the University of California
    Inventors: Craig B. Prater, James Massie, David A. Grigg, Virgil B. Elings, Paul K. Hansma, Barney Drake
  • Patent number: 5705814
    Abstract: A scanning probe microscope and method having automated exchange and precise alignment of probes, wherein one or more additional stored probes for installation onto a probe mount are stored in a storage cassette or a wafer, a selected probe is aligned to a detection system, and the aligned probe is then clamped against the probe mount. Clamping is performed using a clamp which is disabled when removing a replacement probe from the storage cassette, enabled when installing the probe on the probe mount and disabled when releasing the probe at a later time for subsequent probe exchange. Probe alignment is automated using signals from the probe detection system or by forming an optical image of the probe using a camera or similar technique and determining probe positioning using pattern recognition processing of the probe image to allow probe removal and exchange without operator intervention. Techniques for error checking are employed to ensure proper probe installation and operation.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: January 6, 1998
    Assignee: Digital Instruments, Inc.
    Inventors: James M. Young, Craig B. Prater, David A. Grigg, Charles R. Meyer, William H. Hertzog, John A. Gurley, Virgil B. Elings
  • Patent number: 5560244
    Abstract: A scanned-stylus atomic force microscope (AFM) employing the optical lever technique, and method of operating the same. The AFM of the invention includes a light source and a scanned optical assembly which guides a light beam emitted from the laser source onto a point on said cantilever during scanning thereof. A moving laser beam is thus created which will automatically track the movement of the cantilever during scanning. The invention also allows the laser beam to be used to measure, calibrate or correct the motion of the scanning mechanism, and further allows viewing of the sample and cantilever using an optical microscope.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: October 1, 1996
    Assignees: Digital Instruments, Inc., The Regents of the University of California
    Inventors: Craig B. Prater, James Massie, David A. Grigg, Virgil B. Elings, Paul K. Hansma, Barney Drake
  • Patent number: 5463897
    Abstract: A scanned-stylus atomic force microscope (AFM) employing the optical lever technique, and method of operating the same. The AFM of the invention includes a light source and a scanned optical assembly which guides a light beam emitted from the laser source onto a point on said cantilever during scanning thereof. A moving laser beam is thus created which will automatically track the movement of the cantilever during scanning. The invention also allows the laser beam to be used to measure, calibrate or correct the motion of the scanning mechanism, and further allows viewing of the sample and cantilever using an optical microscope.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: November 7, 1995
    Assignees: Digital Instruments, Inc., The Regents of the University of California
    Inventors: Craig B. Prater, James Massie, David A. Grigg, Virgil B. Elings, Paul K. Hansma, Barney Drake