Patents by Inventor Kenneth Roger Bube

Kenneth Roger Bube 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).

  • Laser-trimmed resistor
    Patent number: 3947801
    Abstract: A laser-trimmed film resistor wherein the laser kerf terminates in an area outside the electrical current path across the resistor.FIELD OF THE INVENTIONThis invention relates to film resistors. More particularly, this invention relates to laser-trimmed thin and thick film resistors containing a laser kerf which terminates outside the electrical current path across the resistor.BACKGROUND OF THE INVENTIONFilm resistors are commonly used in hybrid circuits and include thick film resistors which are conventionally formed by screen-printing a resistive material on an insulating substrate and then firing the material, and thin film resistors which are conventionally formed by sputtering or vacuum-depositing a resistive material on an insulating substrate.In hybrid circuits it is often necessary to adjust the resistance of the film resistors in the circuit. To increase the resistance of a film resistor the resistor is "trimmed" by forming a kerf, i.e.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: March 30, 1976
    Assignee: RCA Corporation
    Inventor: Kenneth Roger Bube