Patents Examined by Jeffrey J. Knapp
  • Patent number: 5203731
    Abstract: The present invention relates generally to a new integrated Vacuum Microelectronic Device (VMD) and a method for making the same. Vacuum Microelectronic Devices require several unique three dimensional structures: a sharp field emission tip, accurate alignment of the tip inside a control grid structure in a vacuum environment, and an anode to collect electrons emitted by the tip. Also disclosed is a new structure and a process for forming diodes, triodes, tetrodes, pentodes and other similar structures. The final structure made can also be connected to other similar VMD devices or to other electronic devices.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: April 20, 1993
    Assignee: International Business Machines Corporation
    Inventor: Steven M. Zimmerman
  • Patent number: 5085606
    Abstract: A post-mask-deflection color cathode ray tube is disclosed that has a strip-type tension foil shadow mask in the form of two intercalated combs providing mutually insulated first and second arrays of strips. Each of the arrays is adapted to receive a different electrical potential effective to cause electron beams passing therethrough to be deflected by the electrical fields created between the strips. A method of manufacturing is also disclosed.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: February 4, 1992
    Assignee: Zenith Electronics Corporation
    Inventors: Sam Kaplan, Robert Adler