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January 1999

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Subject:
From:
"Eltek Ltd. - Process Engineering" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 7 Jan 1999 14:41:37 +0200
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Richard ,
There are lot of people like us , still using tin-lead as etch resist . Very
rarely we are re-flowing tin/lead .
Why we are still working with tin/lead instead of pure tin ? Mainly due to
inertion . The process is working , we do not have environmental problems
with lead ( there is enough sulfates to settle it ) . Tin as etch resist is
not considerable cheaper compared to tin/lead . Not smart answer , but real
one .


At 11:23 06/01/99 EST, you wrote:
>for my own curiosity - how many people are still using a tin/lead bath for
>plating tin/lead ( other than maybe a military spec ) and why?
>
>response would be greatly appreciated
>
>Richard Fudalewski
>
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Edward Szpruch
Eltek Ltd - Israel
e-mail :  [log in to unmask]

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