Solder-bearing lead having solder-confining stop means

Details Solder-bearing lead having solder-confining stop means Solder-bearing lead having solder-confining stop means

1981-02-04

1982-11-02

McGlynn, Joseph H.

Geometrical instruments

228215, H01R 1106

Patent

active

043570690

ABSTRACT:
A solder-bearing lead (10 or 10') is provided with solder-confining stops (20 and 22 or 20' and 22') to preclude detrimental flow of molten solder from a solder preform (12 or 12') on a contact finger (26 or 26') of the lead, along a stem (18 or 18') of the lead in a soldering operation. Accordingly, substantially all of the molten solder flows across the thickness of the contact (26 or 26') to a contact pad (14 or 14') and is confined on the contact pad to form a solder connection (44 or 44'). The solder-confining stops (20 and 22 or 20' and 22' ) are formed by oxidized portions of a base metal (phosphor bronze) from which portions of solder-wettable (tin) coatings (36 and 38 or 36' and 38') have been removed.

REFERENCES:
patent: 3249910 (1966-05-01), Venn et al.
patent: 3351704 (1967-11-01), Sitzler
patent: 3750252 (1973-08-01), Landman
patent: 3827918 (1974-08-01), Ameen et al.
patent: 3864004 (1975-02-01), Friend
patent: 4019803 (1977-04-01), Schell
patent: 4034471 (1977-07-01), Bias
patent: 4085998 (1978-04-01), Owens
patent: 4120558 (1978-10-01), Seidler
patent: 4203648 (1980-05-01), Seidler

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