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<p>We did this occasionally in our ebeam system. We made the user wrap the shutter and some hard to clean parts in foil to minimize the mess.</p>
<p>It takes hardly any emission current to get a high rate - go very slowly, the spot is hard to see.</p>
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<p>In the end we built a simple thermal evaporator and use an alumina crucible in a W or Ta oven heater. </p>
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<p>Jim</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> labnetwork-bounces@mtl.mit.edu <labnetwork-bounces@mtl.mit.edu> on behalf of J Romans <hromans@eng.ucsd.edu><br>
<b>Sent:</b> Thursday, August 4, 2016 12:46:11 PM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Bismuth Deposition</font>
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<div dir="ltr">Hello Esteemed Colleagues -
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<div>We have a research group that is interested in depositing Bismuth. We are leaning towards allowing this in an ebeam evaporator, but sputtering is also a possibility.</div>
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<div>Is anyone aware of any pitfalls or tips associated with either method of deposition? Bi has health and flammability ratings of 1 ( compare Cr with health 2 and flammability 1, which we do a lot of).</div>
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<div>We are more concerned with the physical characteristics that might cause splattering, contamination, incompatibilities with other processes, difficulty cleaning shielding, etc. </div>
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<div>Any information would be greatly appreciated.</div>
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<div>Thanks,</div>
<div>Hal Romans</div>
<div>Senior Equipment Engineer</div>
<div>University of California San Diego </div>
<div>Nano 3 Cleanroom</div>
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