Olin Corporation

Olin Hunt Specialty Products Inc.

Randolfo Galvez

Anthony M Piano

Craig A Foster

Kurt R Raab

A thin, preferably flexible circuit having multiple conductive planes separated by a non-conductive layer is provided. Conductive vias electrically interconnect the conductive planes. The conductive vias comprise carbon coated blind vias which are made conductive by the electrolytic deposition of a metal on the carbon. The invention is particularly suited for G-TAB wherein a first metal plane is patterned into signal plane circuit traces and a second metal plane is patterned into ground plane traces.

G-tab manufacturing process and the product produced thereby

G-TAB having particular through hole

Described herein is a process for treating the tooling holes or slots which have been coated with a carbon black dispersion in a nonconductive material which comprises removing said carbon black with an aqueous solution containing:

Process for preparing nonconductive substrates

In the process for electroplating the walls of through holes in a laminated printed wiring board comprised of at least one non-conducting layer laminated to at least two separate conductive metal layers, which comprises the steps:

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North Bergen, NJ, United States of America

Randolfo Galvez