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:
Sep. 14, 1993
Filed:
Apr. 20, 1992
Christopher M Schreiber, Newport Beach, CA (US);
William R Crumly, Anaheim, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A high density of interconnection sites on a dielectric substrate is provided by producing a laminated assembly with multiple layers of conductors (11, 21) positioned one above the other within the substrate (8). Each conductor (11, 21) terminates at a raised feature (12, 22) projecting beyond the surface of the substrate (8) for connection in an electrical circuit. This permits the conductors (11, 21) to be positioned in the same plane perpendicular to the substrate (8) so that two rows of termination pads (12, 22) may be provided without leaving space between the pads of one for the conductors of the other. Efficient, high speed impedance matching may be accomplished by the addition of a grounding conductor (26) between two signal layers of circuitry within the substrate, also provided with raised features (27) extending to the exterior of the substrate (8).