The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 1997
Filed:
Apr. 07, 1995
David R King, Elkton, MD (US);
Gary C Adler, Newark, DE (US);
Joseph E Korleski, Newark, DE (US);
Michelle M Waters, Hockessin, DE (US);
W. L. Gore & Associates, Inc., Newark, DE (US);
Abstract
The present invention is an improved adhesive sheet (also known as a 'bond ply,' 'bond film,' or 'prepreg') material suitable for bonding together electric circuit boards and other electrical components. The adhesive sheet of the present invention comprises a combination of a porous expanded polytetrafluoroethylene (PTFE), a ceramic filler, and a thermoset resin imbibed within the porous PTFE structure. By employing a fill of less than about 60% by weight of resin, the adhesive sheet has exceptionally good performance characteristics while being vastly easier to process.