USRE34484EExpiredUtility

Gold-plated electronic components

29
Assignee: NGK SPARK PLUG COPriority: Sep 5, 1978Filed: Nov 29, 1991Granted: Dec 21, 1993
Est. expirySep 5, 1998(expired)· nominal 20-yr term from priority
H10W 70/05C25D 5/623H05K 3/246C25D 5/12Y10T428/12535Y10T428/12889Y10T428/265
29
PatentIndex Score
4
Cited by
8
References
2
Claims

Abstract

Gold-plated electronic components are disclosed, as well as a process for producing the same, wherein an alloy of nickel and cobalt or an alloy containing these elements as essential ingredients is used as an undercoat for the gold-plated layer.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. An electronic component, comprising a member consisting of: a ceramic board substrate having a metallized surface formed thereon;   a metal alloy layer coated on the substrate, the metal alloy layer consisting essentially of nickel and cobalt, wherein the cobalt is contained in an amount of 7 to 40% by weight, wherein the metal alloy layer is formed in a thickness of 0.5 to 5 microns; and   a gold-plated outer surface layer coated on said metal alloy, said gold-plated outer surface layer forming the outer-most surface of the electronic component, wherein the gold-plated outer surface layer is formed in a thickness of .[.0.5.]. .Iadd.1.5 .Iaddend.to 2 microns.   
     
     
       2. The electronic component of claim 1, wherein the balance of said alloy is nickel.

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