Lifetime a year or less for now. No Ni as RF circuitry is involved. 

-----Original Message-----
From: Bev Christian [mailto:[log in to unmask]] 
Sent: Thursday, June 12, 2014 8:18 PM
To: 'TechNet E-Mail Forum'; Ahmad, Syed
Subject: RE: [TN] Sputtered gold thickness for copper corrosion protection in soil

Ahmad,
What is the lifetime of the product?  No nickel between the copper and the gold?
Bev

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ahmad, Syed
Sent: Thursday, June 12, 2014 9:10 AM
To: [log in to unmask]
Subject: [TN] Sputtered gold thickness for copper corrosion protection in soil

Any suggestion on how thick a sputtered layer of gold on copper terminal is necessary for corrosion protection? The gold sputtered copper terminals are to be in contact with soil and probed periodically.

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