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December 2007

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TechNet E-Mail Forum <[log in to unmask]>, Hfjord <[log in to unmask]>
Date:
Mon, 3 Dec 2007 22:26:37 +0100
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Silver epoxy does not start migration. Your silver migration is probably
caused by the silver plated feedthroughs. We NEVER us Silver. Our glass
beads have gold flash over nickel over the base metal.
/Inge

-----Ursprungligt meddelande-----
Från: TechNet [mailto:[log in to unmask]] För Anat Douek
Skickat: den 3 december 2007 15:09
Till: [log in to unmask]
Ämne: [TN] FW: shorted feedthus due to silver migration

 
Hi,
I am facing a problem of silver migration with soldered feedthru. The
silver plated feedthrus are soldered to an aluminum housing and +60V is
applied to the feedthru's pin. After period the voltage fall down and
silver residues observed on the glass insulator . These residues caused
the pin to short to the body. 
 
Is epoxy adhesive which will cover the feedthru body , after the
soldering,  can be a solution ?
 
Please advise,
Thanks,
Anat Douek

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