Patents by Inventor Frank C. Bakermans

Frank C. Bakermans 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).

  • Thick film planar filter connector having separate ground plane shield
    Patent number: 4682129
    Abstract: A filter connector for attenuating frequencies up to 1000 MHz having a conductive housing enclosing a planar filter element. Rows of conductive pins and associated capacitors are mounted on the filter element and there is a ground plane over one or both surfaces of the filter element. The pins pass through holes in each ground plane without touching it.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: July 21, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frank C. Bakermans, Charles J. Trexler
  • Method of making bumped-beam tape
    Patent number: 4396457
    Abstract: Mechanically punching bumps in a thin copper or aluminum foil and etching the foil to form beams with a bump at the end of each beam. Alternatively increasing the layers by casting or gluing polyimide film to the foil and etching the polyimide film in designated areas to expose the copper or aluminum.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: August 2, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank C. Bakermans
  • Process for manufacturing multilayer ceramic chip carrier modules
    Patent number: 4345955
    Abstract: Preparing multilayer ceramic (MLC) modules by injection molding a mixture of a fine particulate such as alumina and a binder into a mold containing predesigned ridges and pins. The product is a green body layer of ceramic containing grooves and vias that is thereafter metallized with a conductive paste and laminated to other like layers of ceramic. Solvent extraction of the binder and sintering of the MLC forms the module.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: August 24, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frank C. Bakermans, Lee R. Conrad