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<p class="MsoNormal"><span style="color:#1F497D">Thanks very much and thanks to the other responses. This helped me to decide to refuse to use this material as I have only one evaporation tool.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Rick<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span style="color:windowtext"> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>Carsen Kline<br>
<b>Sent:</b> Monday, August 14, 2017 11:57 AM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> Re: [labnetwork] materials question<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hello Rick,<br>
<br>
We avoid zinc and its alloys (brass etc) in all of our deposition systems. This is to do with its high vapor pressure, especially when heated, and tendency to poison a vacuum system, keeping you from achieving historically good base pressures. I'd refer you
to this site for a scratch-the-surface explanation: <br>
<a href="http://www.mtm-inc.com/ac-20120328-vacuum-compatible-metals-and-alloys.html">http://www.mtm-inc.com/ac-20120328-vacuum-compatible-metals-and-alloys.html</a><br>
<br>
You might be able to approach it if you had a high confidence method of switching to zinc-mode and capturing all the sputtered or evaporated material. Lots of shielding, foil, and minimized time in the chamber. A dedicated "dirty" system would be preferable.
<br>
<br>
We're open to zinc oxide, though no one has tried it. In this case I would start from a zinc oxide target and add a little oxygen to keep it in oxide form, rather than trying to reactively sputter from a zinc target.
<br>
<br>
Regards,<br>
<br>
Carsen<span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal">On 8/14/2017 8:16 AM, Morrison, Richard H., Jr wrote:<o:p></o:p></p>
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<p class="MsoNormal">HI Everyone,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Does anybody have any experience with evaporation or sputter of Zinc? Any concerns out there?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Rick<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Richard H. Morrison<o:p></o:p></p>
<p class="MsoNormal">Principal Member of the Technical Staff<o:p></o:p></p>
<p class="MsoNormal">Draper<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Notice: This email and any attachments may contain proprietary (Draper non-public) and/or export-controlled information of Draper. If you are not the intended recipient
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<br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>labnetwork mailing list<o:p></o:p></pre>
<pre><a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a><o:p></o:p></pre>
<pre><a href="https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork">https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork</a><o:p></o:p></pre>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>Carsen Kline<o:p></o:p></pre>
<pre>Lab Operations Manager<o:p></o:p></pre>
<pre>Stanford Nanofabrication Facility<o:p></o:p></pre>
<pre>Paul G. Allen Bldg 131<o:p></o:p></pre>
<pre>Stanford, CA 94305<o:p></o:p></pre>
<pre>(650)724-8214<o:p></o:p></pre>
<pre><a href="mailto:carsen@stanford.edu">carsen@stanford.edu</a><o:p></o:p></pre>
<pre><a href="http://snf.stanford.edu">http://snf.stanford.edu</a><o:p></o:p></pre>
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