Plated parts and their production

Details Plated parts and their production Plated parts and their production

1986-05-28

1987-05-19

Andrews, Melvyn J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

174 52FP, 204 40, 357 74, 428672, 428673, 428675, 428679, B32B 1501

Patent

active

046667962

ABSTRACT:
Plated metal parts, such as sealing lids for semiconductor packages, in which an iron-based alloy layer is electroplated with a first layer of nickel, a first layer of gold is electroplated on the first nickel layer, a second layer of nickel is electroplated onto the first gold layer and a second layer of gold is electroplated onto the second layer of nickel. The resultant plated parts exhibit higher salt atmosphere corrosion resistance than parts plated with a single nickel-gold set. Other metals can be used as the plating layers.

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patent: 4411965 (1983-10-01), Rosegren et al.
patent: 4486622 (1984-12-01), Dathe et al.

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