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Date: | Thu, 21 Mar 2013 09:56:30 -0500 |
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To see Sn grain boundaries , don't etch. Use cross-polarizers.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of [log in to unmask]
Sent: Thursday, March 21, 2013 10:53 AM
To: [log in to unmask]
Subject: [TN] SAC 305 etch
What would a good etch be for etching SAC305 solder joints to enhance
viewing grain boundaries?
Thanks,
John
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