JW,

Try slower ramping to your soak power (just to the melting point), then a
slower ramp to your pre-dep power that should be set 1 or 2% lower than dep
power.  I have a dual shutter system that I open my lower shutter for 100A
for the system to settle before the upper shutter opens.  I need a very
accurate film thickness.
Be sure you have melted in your new Au slowly and completely before trying
the above.  I too have blown all my Au out of the pocket, but that was back
in the 80's.

Brent

J W wrote:

> Hi,
>
> I'm trying to deposit gold using Ebeam evaporation,
> but kept having metal spitting problems.  I tried to
> change the equipment running conditions like longer
> soak time, soak power close to deposition power,
> altering beam sweeping pattern.  Sometime it improves
> and other time it doesn't.  Are there any other
> factors that needs to be considered to get rid of the
> spitting?
>
> Thanks!
> J.W.
>
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