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July 2011

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Subject:
From:
vladimir Igoshev <[log in to unmask]>
Reply To:
Date:
Fri, 15 Jul 2011 11:55:58 +0000
Content-Type:
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Hi Gabriela,

If you search the forum (couple years back) you'll find a string on the topic between Werner, Dave and I. 
The bottom line was - silver embrittlement doesn't exist.
Vladimir

SENTEC Testing Laboratory Inc.
11 Canadian Road, Unit 7.
Scarborough, ON M1R 5G1
Tel: (416) 899-1882
Fax: (905) 882-8812
www.sentec.ca

-----Original Message-----
From: Gabriela <[log in to unmask]>
Sender: TechNet <[log in to unmask]>
Date: Fri, 15 Jul 2011 10:38:56 
To: <[log in to unmask]>
Reply-To: TechNet E-Mail Forum <[log in to unmask]>,
        Gabriela <[log in to unmask]>
Subject: [TN] Silver embrittelment in solder joints

Is there anyone who studied if tin lead solders with 2% silver used for
soldering gold plated leads are less reliable than the classic 63/37
tin/lead solder for the same application because of silver embrittlement in
addition to gold embrittelment?
The late Werner Engelmaier published an article:

 
<http://www.globalsmt.net/smt/index.php?view=article&catid=42%3Acolumns-wern
er-engelmaier&id=13358%3Asolder-joint-embrittlementits-not-just-gold&format=
pdf&option=com_content&Itemid=65>
http://www.globalsmt.net/smt/index.php?view=article&catid=42%3Acolumns-werne
r-engelmaier&id=13358%3Asolder-joint-embrittlementits-not-just-gold&format=p
df&option=com_content&Itemid=65

This article explains silver embrittelment as an addition to gold
embrittelment in lead free solders used for soldering gold plated  leads
with SAC.

Is there a correlation between my question and the article?
Gaby



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