Patent ID: 11901659
Assignee: MITSUBISHI MATERIALS CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC H  B  C | IPC B  C  H

Claim 0:
1. A terminal material for connectors comprising
a base material wherein at least a surface layer is made of copper or copper alloy;
a nickel-plating layer made of nickel or nickel alloy coating a surface of the base material; and
a silver-nickel alloy plating layer formed on at least a part of the nickel-plating layer, having a film thickness 0.5 μm or more and 20.0 μm or less, a nickel content 0.03 at % or more and 1.20 at % or less, and an average crystal grain size 10 nm or more and 150 nm or less.