Hans
You can ask any fab house for the name of the machine which I've ever
seen. It is a kind of X-ray machine which can measure the thickness of
the pads.
Fulton
>----------
>From: Hans Rohr[SMTP:[log in to unmask]]
>Sent: Wednesday, November 12, 1997 5:57 PM
>To: [log in to unmask]
>Subject: [TN] FAB: Measuring Solder Thickness After HASL
>
>Does anyone know of a method form measure solder thickness at the knee
>of a hole after HASL other than by cross-sectioning? We do horizontal
>HASL and when the air knives are set for producing very flat surface
>mount pads we sometimes get thin solder at the hole knee. We would like
>to do a quick non-destructive test so when can chart thickness on a
>regular basis.
>
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