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November 1999

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Subject:
From:
Hinners Hans Civ WRALC/LYPME <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 5 Nov 1999 13:27:41 -0500
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        Hi Rudy,

> If you have pure Tin plated pins, electrically in contact with solder,
>
        They better be in electrical contact, otherwise what's the point?

> this is VERY prone to corrosion, as you will be getting galvanically (does
> that
> word exist?)
>
        Sure, you just created it.  Now we tell the rest of the world.

> corrosion.  Tin is much more electropositive than solder, and
> therefore will corrode readily when in contact with solder.
>
        Everything's a battery, first heaters in plating tanks and now
MillMax pins.

> Does this help?
>
        Yeah, your making some rusty gears turn in my head.  <re-entering
grad student mode>  (Doesn't anybody have a spare CVD or MBE they want me to
make chips with?  Group III-V, II-VI or plain old silicon would do just
fine.)  Looks like I get to play scientist, do some experiments and not have
to write a DARPA grant for it!

        Hans

~~~~~~~~
Hans M. Hinners
Materials (& Process) Engineer
Warner Robins - Air Logistics Center
Avionics Production Division
Manufacturing Branch (LYPME)
380 Second Street, Suite 104    (Building 640)
Robins AFB GA 31098-1638
912-926-1970 (Voice) 468 - 1970 (DSN)  912-926-7974 (Fax)
[log in to unmask]

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