Jacob
    I'm not 100% sure, but I would take a guess that the IPC specification
you are after is actually SM-840, which are the standard solder mask
specifications. For the newest version (SM-840C) there are two classes: T
(telecoms) and H (high reliability/ military). You will need to find what
level of performance is expected for your boards so that they can be tested
accordingly.

-----Original Message-----
From: JACOB MOZEL [mailto:[log in to unmask]]
Sent: 28 September 1999 10:15
To: [log in to unmask]
Subject: [TN] IPC and Bellcore specs



Deat TechNetters

I was asked to test a solder mask according to the down-listed specs, could
anyone advise where are thse specs avilable.



IPC-SMA-40
Bellcore TSI-4078
TR-TSI-000078 (equivalent to BS)

Thanks and regards

Jacob Mozel

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