One cross-section will tell you what it is.
Vladimir
SENTEC Testing Laboratory Inc.
11 Canadian Road, Unit 7.
Scarborough, ON M1R 5G1
Tel: (416) 899-1882
Fax: (905) 882-8812
www.sentec.ca
-----Original Message-----
From: John Balchunas <[log in to unmask]>
Sender: TechNet <[log in to unmask]>
Date: Thu, 27 Oct 2011 09:56:59
To: <[log in to unmask]>
Reply-To: TechNet E-Mail Forum <[log in to unmask]>,
John Balchunas
<[log in to unmask]>
Subject: [TN] Delam or Inner Core Bond Enhance Anomaly or something else?
Good Morning and Your help is appreciated to figure out what a
discoloration is under the solder mask of a bare board which does not
change after one reflow temperature cycle.
The Prebake and Postbake photos are in my PCB Inspection Photos Gallery
at the TechNet Group Site
http://ipc-technet.groupsite.com/galleries?page=3
What is it?... Delam, or Inner Core Bond Enhance Anomaly, or something
else...?
Thanks for your help with this.
John Balchunas
Supplier Quality Engineer
Email: [log in to unmask] <mailto:[log in to unmask]>
Tel: 763-278-2249
Fax: 763-767-4635
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