Patents by Inventor Eberhard Hahn

Eberhard Hahn 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: 4633090
    Abstract: Method and apparatus for particle irradiation of a target, wherein the anisotropic contrast deflection of an irradiation modulator for producing the exposure pattern is produced step by step, the magnitude of the potential difference between the electrodes of a comb electrode is being set, and the structuring of a line probe is controlled by a control logic according to given specifications by utilization of potential setting patterns.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: December 30, 1986
    Assignee: Jenoptik Jena GmbH
    Inventor: Eberhard Hahn
  • Patent number: 4472636
    Abstract: The invention relates to a method of and device for producing any desired patterns on a target. The irradiating beam is modulated over the entire cross-sectional area by an electro-magnetic field, which is obtained by a line or two-dimensionally shaped electrode grid, each individual electrode of which can be differently charged and which reflects the irradiation beam or produces a respective strip.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: September 18, 1984
    Inventor: Eberhard Hahn
  • Patent number: 4393310
    Abstract: This invention is in concern of a method of and a device for adjusting a shaped-electron-beam working device which includes means for deflecting a shaped electron beam in the target plane and means for varying the shaped, preferably rectangular electron beam. The working device is adjusted with respect to the adjustment categories pupil, format or shape, and with respect to format calibration. The adjustment operations are performed substantially without any back-effects upon already obtained adjusted positions so that considerably short adjustment times are obtained.The inventional adjustment method provides a definite adjustment sequence for correcting aberrations visualized via display means, and also provides the device for performing the necessary steps.The invention is employed preferably in lithographic devices for producing microcircuits.
    Type: Grant
    Filed: January 5, 1979
    Date of Patent: July 12, 1983
    Inventor: Eberhard Hahn