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September 2005

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Subject:
Antw: [TN] Lead free alloys
From:
Guenter Grossmann <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Guenter Grossmann <[log in to unmask]>
Date:
Fri, 2 Sep 2005 15:15:05 +0200
Content-Type:
text/plain
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text/plain (72 lines) 
Colin
SnAg3.8Cu 0.7 for reflow and wave
or SnCu3.5 or SnCuNi for wave

Wave soldering has always the fact of accumulation of copper in the bath.

Best regards

Guenter



EMPA
Swiss Federal Laboratories  for Materials Testing and Research
Centre for Reliability
Guenter Grossmann,  Senior Engineer

8600 Duebendorf
Switzerland

Phone: xx41 1 823 4279
Fax :     xx41 1 823 4054
mail:     [log in to unmask]

>>> [log in to unmask] 02.09.2005 10:12 >>>
Quick question, but what is the most prevelant Lead free alloy in use in
Europe at present? 

We have a customer request to use SNC, (Tin Nickel Copper) as the final
finish on lead free HAL PCB. We would prefer to use SAC (Tin Silver
Copper). 

What issues would we need to consider if we used the SNC finish in a SAC
wave solder bath?

 

Colin McVean M.Inst.C.T.

Production Manager

Artetch Circuits Limited

Main: 01903 725365

DD:    01903 712926

www.artetch.co.uk 

 


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