Nickel-based electrical contact

Details Nickel-based electrical contact Nickel-based electrical contact

1986-01-30

1990-05-15

Bradley, P.

Electrical connectors

Contact terminal

Of particular metal or alloy

439886, H01R 924

Patent

active

049254073

ABSTRACT:
Contacts comprising nickel and a glass-forming additive have electrical contact properties which render them suitable as replacements for gold contacts; disclosed contacts have low contact resistance even after prolonged exposure to an oxidizing ambient. The glass-forming additive is one or several of the elements boron, silicon, germanium, phosphorus, arsenic, antimony, or bismuth, and contacts are readily formed, e.g., as layers on substrates. A crystallographically disordered structure is produced in a contact surface layer at least upon exposure to an oxidizing ambient; alternatively, such desired structure can be produced by ion bombardment and even in the absence of glass-forming additives.

REFERENCES:
patent: 1769229 (1939-07-01), Mandell
patent: 2441945 (1948-05-01), Frolich et al.
patent: 4409295 (1983-10-01), Smith, III et al.
patent: 4442182 (1984-04-01), Chart
patent: 4465742 (1984-08-01), Nagashima et al.
patent: 4554045 (1985-11-01), Bean et al.

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