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April 2016

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TechNet <[log in to unmask]>
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TechNet <[log in to unmask]>
Date:
Wed, 13 Apr 2016 09:08:45 -0500
Reply-To:
TechNet E-Mail Forum <[log in to unmask]>, Jack Olson <[log in to unmask]>
Subject:
Material Tg for RoHS
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<[log in to unmask]>
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From:
Jack Olson <[log in to unmask]>
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text/plain (16 lines) 
Way back when we were making changes to meet RoHS requirements, we were
advised to use bare board materials with 170 Tg or higher. So we changed
our Fabrication Drawing Notes and everything has been fine.

But recently I've noticed that the default material for several different
suppliers is around 155 Tg. Has the thinking "relaxed" in this regard? Or
should I stick with my 170 ?

Jack


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