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<div>Hi Julia,</div>
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<div>I don’t recall what we paid for the Al2O3 crucibles. I do recall that the Tungsten crucible was about 3-4x more expensive than the comparably sized VC crucible.</div>
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<div>Best,</div>
<div> -Nathan</div>
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<div>-- </div>
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<div>Nathan Nelson-Fitzpatrick PhD</div>
<div>Nanofabrication Process Engineer</div>
<div>Quantum NanoFab</div>
<div>University of Waterloo</div>
<div>200 University Avenue West</div>
<div>Waterloo, ON Canada N2L 3G1</div>
<div>Ph: +1 519-888-4567 ext. 31796</div>
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<span style="font-weight:bold">From: </span>"<a href="mailto:julia.aebersold@louisville.edu">julia.aebersold@louisville.edu</a>" <<a href="mailto:julia.aebersold@louisville.edu">julia.aebersold@louisville.edu</a>><br>
<span style="font-weight:bold">Date: </span>Monday, March 23, 2015 at 1:52 PM<br>
<span style="font-weight:bold">To: </span>Nathan Nelson - Fitzpatrick <<a href="mailto:nnelsonfitzpatrick@uwaterloo.ca">nnelsonfitzpatrick@uwaterloo.ca</a>>, Nava Ariel- Sternberg <<a href="mailto:anava@tauex.tau.ac.il">anava@tauex.tau.ac.il</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>
<span style="font-weight:bold">Subject: </span>RE: [labnetwork] Ni evaporation<br>
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<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">I really like this idea for we have cracking crucibles all the time. Running without a crucible scares me if the beam were
to melt the hearth and puncture the water jacket. Nathan, what was your price difference between Tungsten and
</span></a><span style="font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(68, 84, 106);">Al2O3 crucibles</span><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">.</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Cheers!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Julia Aebersold, Ph.D.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Cleanroom Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Micro/Nano Technology Center<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">University of Louisville<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Shumaker Research Building, Room 233<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">2210 South Brook Street<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Louisville, KY 40292<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">502-852-1572<o:p></o:p></span></p>
<p class="MsoNormal"><a href="http://louisville.edu/micronano/"><span style="font-size: 11pt; font-family: Calibri, sans-serif;">http://louisville.edu/micronano/</span></a><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: windowtext;">From:</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: windowtext;">
<a href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a> [<a href="mailto:labnetwork-bounces@mtl.mit.edu">mailto:labnetwork-bounces@mtl.mit.edu</a>]
<b>On Behalf Of </b>Nathan Nelson - Fitzpatrick<br>
<b>Sent:</b> Monday, March 23, 2015 9:19 AM<br>
<b>To:</b> Nava Ariel- Sternberg; <a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a><br>
<b>Subject:</b> Re: [labnetwork] Ni evaporation<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">Hi Nava,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">We have also experienced problems in our lab with Ni e-beam evaporation in VC or Al2O3 crucibles. We found that the VC crucibles would break down after a few deposition
cycles (and would “tarnish” the Ni melt) and the one time we tried Al2O3 as a crucible liner it broke immediately upon removal from our E-beam hearth. We have settled on using Tungsten crucibles for our Ni e-beam evaporation. We have not observed any notable
problems with this process and our first W crucible lasted for over two years before we needed to retire it.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">Best regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;"> -Nathan<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">-- <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">Nathan Nelson-Fitzpatrick PhD<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">Nanofabrication Process Engineer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">Quantum NanoFab<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">University of Waterloo<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">200 University Avenue West<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">Waterloo, ON Canada N2L 3G1<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;">Ph: +1 519-888-4567 ext. 31796<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(80, 0, 80);"><o:p> </o:p></span></p>
<p class="MsoNormal"><span class="apple-style-span"><span style="font-size:10.5pt"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif;">From:
</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif;">Nava Ariel- Sternberg <<a href="mailto:anava@tauex.tau.ac.il">anava@tauex.tau.ac.il</a>><br>
<b>Date: </b>Monday, March 23, 2015 at 5:30 AM<br>
<b>To: </b>"<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>[labnetwork] Ni evaporation<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Calibri, sans-serif;"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Hi all,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">We've came across some issues with Ni e-beam evaporation and thought of consulting the network:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Which crucible are you using for Ni e-beam evaporation? We've tried Al2O3 and Vitreous carbon, both recommended by the material/crucible suppliers.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Any tips with respect to melting the material or the evaporation process itself?
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Nava</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Nava Ariel-Sternberg, Ph.D.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Tel-Aviv University Center for Nanoscience and Nanotechnology, Managing Director</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">MNCF Manager</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Phone: 03-640-5619</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Mobile: 054-9984959</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Email:
<a href="mailto:anava@tauex.tau.ac.il">anava@tauex.tau.ac.il</a></span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> </span><o:p></o:p></p>
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