Patents by Inventor Dwight W. Brede

Dwight W. Brede 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).

  • Slider-suspension assembly and method for attaching a slider to a suspension in a data recording disk file
    Patent number: 4761699
    Abstract: In a data disk file a slider is mechanically attached to the suspension by means of reflowed solder balls. A pattern of solder contact pads is formed on the back side of the slider and a similar pattern of solder-wettable regions is formed on the suspension. Solder balls are formed on either the solder contact pads or the solder-wettable regions, the slider is located on the suspension so that the solder balls are in registration between the solder contact pads and solder-wettable regions, and the solder is heated to reflow, thereby forming solder joints as a mechanical connection between the slider and suspension. When a thin film transducer is formed on the slider trailing edge and the suspension is a laminated type with patterned conductors, solder balls are also formed on the transducer lead terminations on the trailing edge and on a row of solder-wettable regions on the suspension near the location where the trailing edge of the slider is to be located.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: August 2, 1988
    Assignee: International Business Machines Corporation
    Inventors: Norman G. Ainslie, Dwight W. Brede, A. David Erpelding, Surya Pattanaik