Patent ID: 6403234
Filing Date: 2002-06-11
Classification: B32B,C25D,Y10T

Abstract:
A plated material for connectors having superior insertion and withdrawal properties comprising:an intermediate layer consisting of Ni alloy plating and at least one of P and B and having a Vickers hardness of 450 to 750 Hv and a thickness of 0.3 to 2 &mgr;m provided on a base metal consisting of Cu or Cu alloy; a reflowed Sn or Sn alloy plated surface layer provided thereon; and an alloy layer consisting primarily of Snâ€”Ni and having a thickness of 0.05 to 2 &mgr;m formed by diffusion between said intermediate layer and said surface layer, in which average grain size of said Snâ€”Ni compound is 0.05 to 1 &mgr;m.