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Hello Nava,<br>
<br>
You must use a crucible.<br>
Even the Ni melt does not stick to the hearth, the Cu from the
hearth will massively diffuse <br>
into the Ni melt and it will end on the wafers.<br>
<br>
Thanks, Bernard<br>
<br>
<br>
The <br>
On 3/23/15 10:03 AM, Henry Taylor wrote:<br>
</div>
<blockquote
cite="mid:CAPN4M+GKF=rCaCJTe=FaD+tj60rY3evFhw0h4Yf2c6_8ZzM2sg@mail.gmail.com"
type="cite">
<div dir="ltr">Hello Nava,
<div><br>
</div>
<div>In my lab we do not use a crucible. We put the Ni pellets
directly in the hearth. The Ni melts into a ball. It does
not stick to the hearth.</div>
<div><br>
</div>
<div>Best,</div>
<div>Henry Taylor</div>
<div>Senior Hardware Engineer</div>
<div>NNF at NCSU </div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Mar 23, 2015 at 5:30 AM, Nava
Ariel- Sternberg <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:anava@tauex.tau.ac.il"
target="_blank">anava@tauex.tau.ac.il</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="white" link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi
all,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">We've
came across some issues with Ni e-beam evaporation
and thought of consulting the network:</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">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></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Any
tips with respect to melting the material or the
evaporation process itself?
</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Nava</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Nava
Ariel-Sternberg, Ph.D.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Tel-Aviv
University Center for Nanoscience and
Nanotechnology, Managing Director</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">MNCF
Manager</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Phone:
03-640-5619</span><span dir="RTL"
style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1f497d"
lang="HE"></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Mobile:
054-9984959</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Email:
<a moz-do-not-send="true"
href="mailto:anava@tauex.tau.ac.il"
target="_blank"><span style="color:blue">anava@tauex.tau.ac.il</span></a></span></p>
</div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
</div>
</div>
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