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November 2009

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Subject:
From:
Ioan Tempea <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Ioan Tempea <[log in to unmask]>
Date:
Fri, 20 Nov 2009 10:45:48 -0500
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HDY,

You have it all for free http://www.flexiblecircuittechnology.com/

Just say big thanks to Joe!

Regards,

Ioan Tempea, ing.
Ingénieur Principal de Fabrication / Senior Manufacturing Engineer
T | 450.967.7100 ext.244
E | [log in to unmask] 
W | www.digico.cc

N'imprimer que si nécessaire - Print only if you must

-----Message d'origine-----
De : Harris Dy [mailto:[log in to unmask]] 
Envoyé : Friday, November 20, 2009 10:05 AM
À : [log in to unmask]
Objet : [TN] Stiffener on Flex Circuit

Hi guys,
 
I am not that familiar with Flex manufacturing so I would appreciate if you can share your knowledge and help me understand the process of adding FR4 stiffeners to Flex circuit.
 
1. At what point of the process is FR4 stiffener normally added to the Flex?
 
2. If there are holes that needs to be drilled on the stiffeners to match the Flex holes, is it drilled larger (due to misregistration?)? If so, by how much bigger?
 
3. I remember FR4 stiffeners were drilled and routed together with adhesive. How is it registered then to the Flex? It's not being attached individually or manually right?
 
I would appreciate if you can explain in greater detail.
 
Thanks for your help.
HDY


      

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