Back to results
US 4,732,821 AGranted
Nickel-based electrical contact
AssigneeAmerican Telephone and Telegraph Company, AT&T Bell Laboratories
InventorsJoachim J. Hauser, Andreas Leiberich, John T. Plewes, Murray Robbins
Life of this patent
Estimating the term…
Abstract
Nickel material comprising controlled amounts of hydrogen has low electrical contact resistance even after prolonged exposure to an oxidizing ambient. When used as a surface layer on an electrically conducting member, such material is suitable as a contact material and represents an inexpensive alternative to gold. And, when prepared in the form of microscopic flakes, such material is suitable for use in electrically conductive inks and adhesives.
Claims14
Device comprising an electrically conducting member having a contact surface,
- said contact surface comprising the surface of at least a portion of a surface region of said member,
- said surface region consisting essentially of a contact material,
- an amount of at least 70 atom percent of said contact material consisting of nickel and hydrogen,
- and hydrogen being present in said amount in a concentration which results in an enhanced electrical contact property of said contact surface.
1 more element
Dependencies are inferred from the claim text.