We collect dwell time and parallelism data every day (3 samples) using an
unit designed to collect that info and we measure the amount of flux
deposited on a window 3 times a week. We monitor the average reading and the
range of those readings for the first two and we use moving average and
moving range for the amount of flux deposited. These charts prove quite
useful for detecting a number of special variation causes.

yves

Yves Dupuis
Process Engineering
Leitch Technology
Phone: 416-445-9929 X3389 / Fax: 416-445-7927
25 Dyas Road, North York, Ontario M3B 1V7


> -----Original Message-----
> From: Rougeux, Scott [SMTP:[log in to unmask]]
> Sent: Thursday, October 04, 2001 10:02 AM
> To:   [log in to unmask]
> Subject:      [TN] SPC @ WAVE SOLDER
>
> In regards to SPC at wavesolder. I would just like to here from some of
> the
> people in this forum on what type of data they are collecting or sampling.
> Any info is beneficial. Thanks.
>
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