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Another way is to remove a small amount of solder from different solder
joints and send it to one of the solder analysis companies, just as you
would a solder sample from a wave solder pot. It may not be as accurate
as some of the other methods, but it will certainly be a low cost method
that would give you a pretty good indication.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hans Shin
Sent: Tuesday, November 01, 2005 10:41 AM
To: [log in to unmask]
Subject: Re: [TN] Lead-Free testing
Carl,
To answer both of your questions, SEM/EDS analysis is a good way to see
if it's a Pb-free solder or Sn/Pb solder. If you have XRF with
elemental characterization capability, that should work as well. The
instrument chambers should accomodate most sizes. If not, a tiny amount
of solder can be removed from one location for SEM/EDS analysis.
Hans Shin
Pacific Testing Laboratories, Inc.
www.pacifictesting.com
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Carl VanWormer
Sent: Tuesday, November 01, 2005 8:27 AM
To: [log in to unmask]
Subject: [TN] Lead-Free testing
Is there an easy way to verify that an assembly has been produced with
lead-free solder? Conversely, is there a quick and easy test for lead
in a solder joint?
Carl Van Wormer
Cipher Systems
1800 NW 169th Place, Suite B-100
Beaverton, OR 97006
Phone (503)-617-7447 Fax (503)-617-6550
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Technet Mail List provided as a service by IPC using LISTSERV 1.8e
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