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September 1998

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From:
Mike Manwell <[log in to unmask]>
Date:
Wed, 16 Sep 1998 07:48:12 -0700
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This is very helpful, I appreciate your response as well as everyone else who
has responded.
Thanks again,
Mike


On Wed, 16 Sep 1998 04:34:08 -0700 Hoppa, Floyd wrote:

> From: Hoppa, Floyd <[log in to unmask]>
> Date: Wed, 16 Sep 1998 04:34:08 -0700
> Subject: [TN] Flux Measuring Techniques
> To: [log in to unmask]
>
> One method we use for this measurement is a specially designed carrier
> with (4) glass plates in slots held down by spring clamps.  These plate
> glass pieces are removable.  The following steps are then taken:
>         1) We will wash the plate glasses and pallet.
>         2) Weigh the (4) glass plates separately and record the weight.
>         3) Assemble the glass plates into the pallet.
>         4) Run the pallet down the wave solder machine (chip wave and
> wave bath are off)
>         5) Remove the glass plates and weigh in the scale.  Record the
> data.
>
> The scale is measuring (or attempting to measure) micrograms.  We use a
> Ainsworth 1000 scale (which run approximately ($70,000).  We will run
> several tests to see if it is repeatable and consistent.
>
> Hope this helps.
>
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