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:
Mar. 21, 1989
Filed:
Apr. 23, 1987
Donald Fey, Vestal, NY (US);
John T Legg, Glen Aubrey, NY (US);
Mark V Pierson, Binghamton, NY (US);
International Business Machines, Armonk, NY (US);
Abstract
The method and apparatus described in the disclosure utilizes the known technique of extrusion to form a plurality of very small pins, with diameters of 0.020 inch or smaller, in a substrate of electrically nonconductive material. The number of pins is 360 or more, and the electrically conductive material described in the extrusion process is copper. A pin die is formed with the same number and pattern of holes as are in a blank substrate, and it is positioned over an extrusion die with matching orifices that is fixed on an extrusion press. A head die presses the blank substrate firmly on the pin die during the extrusion operation, and when completed, the pins are sheared and the substrate is ejected as a new blank is positioned to repeat the cycle.