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| Date: | Thu, 23 Jan 2020 13:39:24 +0000 |
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Given the bonding is robust and the material does not present any assy interference this is a process indicator.
Jeffrey Bush
Program Quality Engineering Manager
BAE SYSTEMS
Electronic Systems Division
C4ISR Solutions – Space Systems Group
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From: TechNet <[log in to unmask]> On Behalf Of Nigel Burtt
Sent: Thursday, January 23, 2020 7:40 AM
To: [log in to unmask]
Subject: Re: [TN] [External] [TN] FW: IPC-2223D, Sectional Design Standard for Flexible/Rigid-Flexible Printed Board
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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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