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<p class="MsoNormal"><span style="font-size:11.0pt">We evaporate straight out of the pocket for most of our metals, it’s interesting to hear that this may not be standard procedure for most labs. Not to draw attention away from the original question in this
thread but I would like to hear more about what benefits you are getting from using liners. Is it just for ease of swapping metals in the pockets? In the instance of a Cu liner for Ni are you able to make a proper melt slug with the Ni considering you are
unable to get the beam too close to the Cu liner? Thanks in advance.<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Century Gothic",sans-serif;color:#004987">Jason Edwards</span></b><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Century Gothic",sans-serif;color:#545761">KBR | Clean Room Facilities Manager , Defense Systems Engineering<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> labnetwork <labnetwork-bounces@mtl.mit.edu>
<b>On Behalf Of </b>Beaudoin, Mario<br>
<b>Sent:</b> Wednesday, December 11, 2024 5:07 PM<br>
<b>To:</b> Graham Gibson <gibsong@queensu.ca>; Owain Clark <odc1n08@soton.ac.uk>; shokoofe haghighi <shokoofe_haghighi@yahoo.com>; labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [Non-DoD Source] Re: [labnetwork] question about Liner for Ni Ebeam Evaporation<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>We use a Cu crucible (4.4cc in a 7cc pocket) with good results.<span style="font-size:12.0pt"><o:p></o:p></span></p>
<p>Mario<o:p></o:p></p>
<p><o:p> </o:p></p>
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<p class="MsoNormal">On 2024-12-11 9:11 a.m., Graham Gibson wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:#FFECB3">[<strong><span style="font-family:"Arial",sans-serif">CAUTION:</span></strong> Non-UBC Email]</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> It’s interesting to see such a wide variety of experiences. I’m too chicken to evaporate right out of the pocket, so we went through a lot of liners, too, before settling on something.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> We have had good luck with Cu liners for Ni e-beam evaporation, but with a 2.2 cc pocket, we have to be very careful to keep the beam away from the walls and limit the deposition rate to 1 Angstrom/s.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Hope you find something that works, liners get expensive!</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Graham Gibson</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt">Operations Manager, NanoFabrication Kingston</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt">Queen’s University</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt">945 Princess Street</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt">Kingston, Ontario, Canada</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt">K7L 0E9</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt"><a href="mailto:gibsong@queensu.ca"><span style="color:#0563C1">gibsong@queensu.ca</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt"><a href="http://www.nanofabkingston.ca/"><span style="color:#0563C1">www.nanofabkingston.ca</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> labnetwork
<a href="mailto:labnetwork-bounces@mtl.mit.edu"><labnetwork-bounces@mtl.mit.edu></a>
<b>On Behalf Of </b>Owain Clark<br>
<b>Sent:</b> December 5, 2024 3:48 AM<br>
<b>To:</b> Jeff Salzmann <a href="mailto:jks7@buffalo.edu"><jks7@buffalo.edu></a>; Bernhard Reineke
<a href="mailto:bernhard.reineke@uni-paderborn.de"><bernhard.reineke@uni-paderborn.de></a>; shokoofe haghighi
<a href="mailto:shokoofe_haghighi@yahoo.com"><shokoofe_haghighi@yahoo.com></a>; <a href="mailto:labnetwork@mtl.mit.edu">
labnetwork@mtl.mit.edu</a><br>
<b>Subject:</b> Re: [labnetwork] question about Liner for Ni Ebeam Evaporation</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt">Interestingly we have no trouble with Ni, it is one of our most stable materials and the crucible has not been changed in years. I believe it is W.
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt">I suspect reading these comments it is because we have larger 40cc crucibles and we only melt a spot in the center with a small beam deflection. The crucible walls never see melted Ni.
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt">BR, Owain</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a>>
<b>On Behalf Of </b>Jeff Salzmann<br>
<b>Sent:</b> 04 December 2024 17:15<br>
<b>To:</b> Bernhard Reineke <<a href="mailto:bernhard.reineke@uni-paderborn.de">bernhard.reineke@uni-paderborn.de</a>>; shokoofe haghighi <<a href="mailto:shokoofe_haghighi@yahoo.com">shokoofe_haghighi@yahoo.com</a>>;
<a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a><br>
<b>Subject:</b> Re: [labnetwork] question about Liner for Ni Ebeam Evaporation</span><o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-GB"> </span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:wf_segoe-ui_normal;color:#212121">You don't often get email from
<a href="mailto:jks7@buffalo.edu">jks7@buffalo.edu</a>. <a href="https://aka.ms/LearnAboutSenderIdentification">
Learn why this is important</a> </span><o:p></o:p></p>
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<p class="MsoNormal" style="line-height:16.5pt;background:#F7F9FA"><strong><span style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#8D3970">CAUTION:</span></strong><span style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#8D3970"> This
e-mail originated outside the University of Southampton. </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Haghighi,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">This is my collection of failed crucibles used to evaporate Ni.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">We decided on graphite, because copper was worse. We limit our deposition rate to 0.2</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black;background:#F8F9FA">
</span><span style="font-size:12.0pt">Å/sec to help extend the lifespan of the crucibles. They still fail after 2-3 depositions.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Jeff</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Jeff Salzmann</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Assistant Professor of Research</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Cleanroom Manager, Shared Instrumentation Laboratories</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">School of Engineering and Applied Sciences</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">University at Buffalo</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">114A Davis Hall</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Buffalo, NY 14260</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Tel: 716.645.2584</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a>> on behalf of Bernhard Reineke <<a href="mailto:bernhard.reineke@uni-paderborn.de">bernhard.reineke@uni-paderborn.de</a>><br>
<b>Date: </b>Wednesday, December 4, 2024 at 11:46<br>
<b>To: </b>shokoofe haghighi <<a href="mailto:shokoofe_haghighi@yahoo.com">shokoofe_haghighi@yahoo.com</a>>,
<a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a> <<a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a>><br>
<b>Subject: </b>Re: [labnetwork] question about Liner for Ni Ebeam Evaporation</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Hi Haghighi,<br>
<br>
we tried this once, same result. All liners will crack. Lesker has some recommendations on Ebeam evaporation of Ni: slow power ramp up and down (works well to prevent cracking for ~2-4 Runs, with fabmate). A Cu liner should work better but we never tested that.<br>
<br>
<a href="https://www.lesker.com/newweb/deposition_materials/depositionmaterials_evaporationmaterials_1.cfm?pgid=ni1">https://www.lesker.com/newweb/deposition_materials/depositionmaterials_evaporationmaterials_1.cfm?pgid=ni1</a><br>
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Best,<br>
<br>
Bernhard </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Von:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a>>
im Auftrag von shokoofe haghighi <<a href="mailto:shokoofe_haghighi@yahoo.com">shokoofe_haghighi@yahoo.com</a>><br>
<b>Gesendet:</b> Mittwoch, 4. Dezember 2024 10:35:19<br>
<b>An:</b> <a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a><br>
<b>Betreff:</b> [labnetwork] question about Liner for Ni Ebeam Evaporation</span><span style="font-size:12.0pt">
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<p class="MsoNormal"><span style="font-size:12.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Hi, hope you are having good days, </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">this is Haghighi, working on metallization by a PVD, using thermal and Ebeam evaporation. </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">I have some issues choosing the right liner for Ni Ebeam evaporating, hope you find time to guide me through it. </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">We have tested graphite, glassy carbon coated graphite, Al2O3, Mo, W and Cu liners so far. </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> Graphite liner just broke after first run from the border line of Ni surface. <span style="color:black">Glassy carbon coated graphite was more or less the same,</span></span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> Al2O3 endured for 4-5 runs before breaking but there were cracks on it, </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> Mo liner totally melted and some kind of alloy was produced,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> W and Cu endured but their internal walls were some how melted and we can't be sure about pureness of evaporated Ni and final produced thin films.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">do you have any other suggestions? </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">high voltage: 6.1 KV</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">emission current: 3 - 5 A</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Thanks for your time and attention in advance, I hope you kindly find time and consider replying me, </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Dr. Haghighi</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>labnetwork mailing list<o:p></o:p></pre>
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<pre><a href="https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork">https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork</a><o:p></o:p></pre>
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