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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