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You mean time above solidus. Time above liquidus is vapor.
Yes, 105 degrees in liquidus does seem excessive, but it depends on the size/mass of the CCA being soldered. It might be required for very large CCAs.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Fabien Guizelin
Sent: Wednesday, April 04, 2012 6:04 PM
To: [log in to unmask]
Subject: [TN] Max time above liquidus
Hi,
Should I be concerned by excessive TAL ? (inter-metalic, etc)
Do you consider 105sec TAL with a Indium 5.1 paste excessive ? (Indium recommends 45-60sec)
Thanks,
Fabien
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