Nigel,
Man, you hit the nail on the head for that one! :-)
Victor,
That's the spec you are looking at for sure and without knowing it, as I said, it would be up to the master drawing if the spec values were not usable or unacceptable.
Thanks for the info, I didn't think to look there, shame on me... :-/ I didn't look far enough.
Later...
Scott Decker | Senior Engineer, PCB Design Services CID+ | Electronic Systems Center
COLLINS AEROSPACE
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Nigel Burtt
Sent: Thursday, January 23, 2020 5:40 AM
To: [log in to unmask]
Subject: Re: [TN] [External] [TN] FW: IPC-2223D, Sectional Design Standard for Flexible/Rigid-Flexible Printed Board
If I'm understanding the query correctly, having seen something similar recently on a flexi-rigid we found that IPC 6013, section 3.3.1.3 was relevant.
Imperfections in the transition zone rigid to flexi (1.5mm either side of the join) are AABUS or as per purchase documents and not a cause for rejection otherwise.
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