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Date: | Mon, 1 Feb 2010 15:43:08 -0500 |
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Hi Ashok,
In terms of standards, you can't get closer than this
http://smema.ipc.org/smema3.1.pdf
Good luck,
Ioan Tempea, ing.
Ingénieur Principal de Fabrication / Senior Manufacturing Engineer
T | 450.967.7100 ext.244
E | [log in to unmask]
W | www.digico.cc
N'imprimer que si nécessaire - Print only if you must
-----Message d'origine-----
De : Ashok Dhawan [mailto:[log in to unmask]]
Envoyé : February-01-10 3:38 PM
À : [log in to unmask]
Objet : [TN] Ring arround fiducial
My vision camera on printer is viewing ring around fiducial (picture attached).
In isometric view, the bottom of fiducial is flared out and is larger than
vertical projection of top surface of fiducial.
Vision Camera is looking for a circular disc , but it is finding circular disc with a
rind around it. I was wondering how to comminicate out-of-spec (IPC
document).
Where it is defined how the fiducial are made ? Only very few board per lot are
manifesting this phenomena, it is causing interruption to production everytime
we hit such an scenario.
I will appreciate your advise.
Regards
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Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
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To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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