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Subject:	Re: Rigid flexs and moisture
From:	"Paulus, Jim" <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Paulus, Jim
Date:	Wed, 6 Oct 2004 15:02:20 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (46 lines)

As is frequently found in technet replies: it depends.
Is your board made with adhesiveless flex?  Or Acrylic?
What happens after the bake? And how long after?
Does the flex have coverlay? What?
jimpaulus

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Larry Koens
Sent: Wednesday, October 06, 2004 2:14 PM
To: [log in to unmask]
Subject: [TN] Rigid flexs and moisture

Technetters,
Is there any type of  published guidelines at what temperature and for
how long you should prebake Rigid flex PCBs? My board is a FR4 with a
Kapton layer in the middle.
thanks,
Larry Koens

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