Patents by Inventor Thomas E. Carver

Thomas E. Carver 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: 5399232
    Abstract: A dielectric cantilever arm stylus with an integrally formed pyramidal tip is provided. The tip is molded in a pyramidal pit etched in a later-removed (100) silicon substrate. An integrally-formed cantilever arm is also formed as the tip is being formed. Various thin film materials form the cantilever arm and the tip. In one embodiment of the invention, the dielectric is silicon nitride. The cantilever arm is anodically bonded to a glass block.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: March 21, 1995
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Thomas R. Albrecht, Shinya Akamine, Thomas E. Carver, Mark J. Zdeblick
  • Patent number: 5221415
    Abstract: A dielectric cantilever arm stylus with an integrally formed pyramidal tip is provided. The tip is molded in a pyramidal pit etched in a later-removed (100) silicon substrate. An integrally-formed cantilever arm is also formed as the tip is being formed. Various thin film materials form the cantilever arm and the tip. In one embodiment of the invention, the dielectric is silicon nitride. The cantilever arm is anodically bonded to a glass block.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: June 22, 1993
    Assignee: Board of Trustees of the Leland Stanford Junior University
    Inventors: Thomas R. Albrecht, Shinya Akamine, Thomas E. Carver, Mark J. Zdeblick
  • Patent number: 4943719
    Abstract: Integral sharp tips on thin film cantilevers are produced by forming a rectangular silicon post on a (100) silicon wafer. Etching the top of the post leaves sharp silicon tips at the corners of what remains of the silicon post. A silicon dioxide cantilever with an integral tip is thermally grown over the silicon wafer and the sharp silicon tips.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: July 24, 1990
    Assignee: The Board of Trustees of the Leland Stanford University
    Inventors: Shinya Akamine, Thomas R. Albrecht, Thomas E. Carver
  • Patent number: 4916002
    Abstract: A microminiature tip and tip assembly is fabricated using microelectronic fabrication techniques. A masking aperture is formed in a dielectric layer which overlies a (100) silicon substrate. For a square aperture, a pyramidal pit is anisotropically etched into the surface of the silicon substrate. Tungsten is selectively deposited in the pit to form a pyramid-shaped microminiature point. Continued deposition of tungsten fills the aperture to form a base portion of the tip which integrally locks the tip to the dielectric layer, which is fabricated to form a support member for the tip.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: April 10, 1990
    Assignee: The Board of Trustees of the Leland Jr. University
    Inventor: Thomas E. Carver