Printed circuit board, electrical connector and method of assemb

Details Printed circuit board, electrical connector and method of assemb Printed circuit board, electrical connector and method of assemb

1979-02-06

1980-10-28

Abrams, Neil

Geometrical instruments

174 685, 339 17T, H05K 108

Patent

active

042303850

ABSTRACT:
A solderless electrical connector comprising a printed circuit board and electrical contact terminals mounted therein. A printed circuit board is fabricated to the construction stage wherein conductive circuitry interconnects plated through holes formed therethrough. The exposed circuitry and plated through holes are covered with a conformal coating of insulative material which seals the outer surfaces of the conductive materials from the environment and its effects. The insulative coating obviates the need for solder to protect the conductive materials as well as precludes the use of solder for electrical interconnection therewith. The plated through holes are constructed for press fit insertion of contact terminals in tight frictional engagement therein. The press fit insertion of a contact having an angular edge portion effectively penetrates the insulative coating by deforming it away from that portion of the plated through hole brought to bear against the contact. A mechanical and electrical interconnection is thereby provided between the plated through hole and contact terminal of the press fit assembly while the utilization of solder and the requisite heat thereof is effectively eliminated.

REFERENCES:
patent: 3268653 (1966-08-01), McNutt
patent: 3518610 (1970-06-01), Goodman et al.
patent: 3660726 (1972-05-01), Ammon et al.
IBM Tech. Discl. Bulletin, Troxell, vol. 7, No. 9, Feb. 1965, p. 735.

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