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| Date: | Wed, 21 Oct 2009 07:52:29 +0100 |
| Content-Type: | text/plain |
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As Ioan suggests a good quality picture or multiple images are worth a
thousand words and speculation, you can email images to Steve G for his page
or load the images direct to the National Physical Laboratory NPL Defect
Database at http://defectsdatabase.npl.co.uk/
You can add jpg files or multiple images as a gif file
We also feature the free defect guide on the SMART Group web site see
www.smartgroup.org
Many thanks
Bob Willis
2 Fourth Ave, Chelmsford, Essex, CM1 4HA England
Tel: (44) 1245 351502
Fax: (44) 1245 496123
Mobile: 07860 775858
www.ASKbobwillis.com
www.SolderingStandards.com
New Package on Package Workshops 24th November
www.ASKbobwillis.com/PoPWorkshops.pdf
PCB Inspection & Quality Control Workshop 3rd November
www.ASKbobwillis.com/faworkshops.pdf
Book Bob's "Step by Step Failure Analysis
Workshop"4th November www.ASKbobwillis.com/faworkshops.pdf
Package on Package Assembly & Inspection Workshops 21th January ITRI
www.ASKbobwillis.com/PoPWorkshops.pdf
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ioan Tempea
Sent: 21 October 2009 04:12
To: [log in to unmask]
Subject: Re: [TN] ENIG Issue
Gentlemen,
I guess we are getting too academic here and there is no help for poor Bill
who started this.
Bill,
Can you contact Steve Gregory and ask him to post the best pictures you can
take of this situation?
Regards,
Ioan
Ioan Tempea, ing.
t : 450-967-7100 ext : 244
[log in to unmask]
www.digico.cc
P N'imprimer que si nécessaire - Print only if you must
-----Message d'origine-----
De : Vladimir Igoshev [mailto:[log in to unmask]]
Envoyé : Tuesday, October 20, 2009 11:03 PM
À : [log in to unmask]
Objet : Re: [TN] ENIG Issue
Well, I wouldn't say that ANY black deposit was present on the surface in
that case (from my website). In fact the exposed (black looking) surface
wasn't even the original top surface of the plating.
The only reason I referred to the case was the appearance (black) of the
exposed Ni, which (according to your "classification") would indicate a case
of BP.
Regards,
Vladimir
SENTEC
11 Canadian Road, Unit 7.
Scarborough, ON M1R 5G1
Tel: (416) 899-1882
Fax: (905) 882-8812
www.sentec.ca
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