Mike:

In my view the primary benefit is you get a fixtureless test based on the
CAD net list in a short time (based on pad/hole count).
You would not want to test high volume though....too slow.
There are some superior suppliers who test as a service with flying probe as
well as board vendors who have the systme in house as well.

One economic benefit is attained on very dense designs where product life is
limited or revisions are frequent. Fixture cost savings can be significant
because you invest in a program rather that hard tool. Again, though,
quantity normally plays a roll in that decision.

Charlie McMahon
[log in to unmask]


----- Original Message -----
From: Mike Lang <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, January 20, 2000 1:09 PM
Subject: Re: [TN] Test pad size for flying probe tester


> Can someone here please go into a little detail about flying probe
testing.  Information such as benefits, limitations, rates, test coverage,
etc would be nice.  I know very little about them.
>
>
>
> >>> [log in to unmask] 01/17/00 02:20AM >>>
> We design for ICT testing, but need to use flying probe until the board is
> stable enough to go to ICT.
>
> Our board loading contractor is having difficulty probing our 0.032"
> (0.8mm) test via's with their flying probe tester. They want us to go to
> 0.040" (1.0mm) pads on new designs.
>
> Any comments?
>
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