Patents by Inventor Kurt Jacques Sonneborn

Kurt Jacques Sonneborn 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).

  • Pattern definition in an organic layer
    Patent number: 3962004
    Abstract: An improved method of defining a pattern in a layer of organic material includes depositing a relatively thin layer of silicon dioxide on the layer of organic material, applying to the silicon dioxide layer a film of primer solution comprising a silane derivative, and then forming a photoresist etch mask on the film. By utilizing an ultrasonic etch bath, a uniform and well-defined pattern is etched in the layer of organic material.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: June 8, 1976
    Assignee: RCA Corporation
    Inventor: Kurt Jacques Sonneborn