Without understanding the actual material being used it's difficult to tell.
I would recommend cleaning with alcohol and bake prior to any assembly @ 250
degrees for 2 hours and try and solder within 4 hours.

Thank you,
Jim Mahoney
Quick Turn Flex Circuits, LLC
Applications Project Manager
P# 603-821-6571
F# 603-821-5723
M# 603-305-6250


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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gabriela
Sent: Monday, June 23, 2008 1:11 PM
To: [log in to unmask]
Subject: [TN] edge delamination flexible circuits assemblies

What may cause the edge delamination of rigid/flex assemblies along the
edges of the flex connector?
We saw this defect only after cleaning the circuits in ABZOL .

Before assembly we are drying the circuits for several hours at 120C. Is it
possible that the cleaning process attacks the adhesive?

Are there recommendations for cleaning flexs?

Gaby


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