Fine line circuitry probes and method of manufacture

Details Fine line circuitry probes and method of manufacture Fine line circuitry probes and method of manufacture

1982-06-21

1987-03-10

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 725, 324158F, G01R 106, G01R 3102

Patent

active

046493387

ABSTRACT:
Probes for testing circuitry comprising plural oriented; circular cross-section; microcircuit probes positioned in a dielectric base and having connections on the opposite side of base to attach probe circuitry. A method of manufacture of such probes includes assembling a laminate of a dielectric base, and an aluminum mandrel, drilling holes in the laminate at positions corresponding to the eventual probe positions, electroless plating the entire package, passivating the electroless plated coating, plating the entire assemblage until the holes are substantially filled with plating, separating and shearing off the layers of plating from the laminate, applying a photoresist and developing it one the aluminum side corresponding to the holes for the probes, and on the opposite side corresponding to the desired circuitry, removing the material on the aluminum side to expose the aluminum, dissolving the aluminum to expose the probes, and soldering and reflowing the solder on the probes.

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