Ben,

Although I am no test expert, for functional circuit testing, you are better
off with an ICT platform.  The 5DX is a form of X-ray laminography.  It is a
good way to check solder joint volume, identify missing components, and find
low volume and solder shorting.  This is not an electrical test.  A 5DX will
not be able to identify wrong components, rotated components, and obviously
not dead components or components that cannot meet performance
specifications.
The functional test is necessary.  The Agilent 5DX (structural test) is nice
to have, but also adds cost to the assembly (about $600K, and a technicial
level person to program and often operate.

Steve A

> -----Original Message-----
> From: Royal, Ben [SMTP:[log in to unmask]]
> Sent: Friday,February 01,2002 12:43 PM
> To:   [log in to unmask]
> Subject:      [TN] 5DX vs. ICT
>
> I am a newbie to the SMT world and would appreciate some assistance on a
> question that came up this afternoon. I hope I get the question right; I
> used to build rockets.
>
> One of our customers wanted to know if we had any experience re: which is
> better - a in-line 5DX-to-FCT process or an ICT-to-FCT process. Not a lot
> of
> response around the table from the more experience hands. I assume "which
> is
> better" means which process is a more efficient inspection setup for
> locating nonconformances.
>
> Would appreciate any comments. Now if you would excuse me, I am going out
> on
> the floor to find a 5DX and figure out what the devil that is.
>
> Ben Royal
>
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