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:
Aug. 15, 1995
Filed:
Mar. 23, 1994
Walter Schmidt, Zurich, DE;
Marco Martinelli, Neftenbach, DE;
Dyconex Patente AG, Zug, CH;
Abstract
The inventive core for electrical connecting substrates, particularly for printed circuit boards and foil circuit boards, has an inner layer (I) with a columnar structure and on either side, metallic cover layers (A,A'), the columnar structure of the inner layer (I) comprising columns (9.1,9.2), which are regularly arranged, spaced from one another and from the cover layers (A,A'), being directed transversely to the service extension of the core and made from an electrically conductive material in a matrix (6) of an electrically insulating material. The cover layers (A,A') e.g. have electrical terminals (16,16', 17,17') in the form of through-plated blind holes (13,14) on selected columns (9) of the inner layer (I) and are structured in such a way that they have a regular pattern of terminals (16,16') on the facing cover layer and terminals (17,17') on the through-connections insulated from the cover layers, this grid pattern can have a size of approximately 0.5 mm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile