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<p>I've had good service from</p>
<ul>
<li><a moz-do-not-send="true"
href="https://advancedspecialtygases.com/contact-us/"
class="moz-txt-link-freetext">https://advancedspecialtygases.com/contact-us/</a></li>
</ul>
<p><br>
</p>
<p>And I won't comment on Linde's service 🤐</p>
<p><br>
</p>
<p>Mario</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 2026-03-11 9:56 p.m., Alex Dixon
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:BY3PR17MB539427EAB65D39E012F88566AE44A@BY3PR17MB5394.namprd17.prod.outlook.com">
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Hi Jeff. I was able to get a quote for CHF3 from General Air
last week with a 1-2 day lead time. </div>
<div
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<br>
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-Alex</div>
<div class="elementToProof" id="Signature">
<div
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<br>
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<span style="background-color: rgb(255, 255, 255);">__________________________________________________________</span></div>
<div
style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14px; color: rgb(33, 33, 33);"
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<span style="background-color: rgb(255, 255, 255);"><br>
</span></div>
<div
style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14px; color: rgb(33, 33, 33);"
class="elementToProof">
<span style="background-color: rgb(255, 255, 255);"><br>
</span></div>
<div
style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14px; color: rgb(33, 33, 33);"
class="elementToProof">
<span style="background-color: rgb(255, 255, 255);">Alex
Dixon, Ph.D. (He/Him)</span></div>
<div
style="direction: ltr; text-align: left; background-color: rgb(255, 255, 255); margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14px; color: rgb(33, 33, 33);"
class="elementToProof">
Lab Manager</div>
<div
style="direction: ltr; text-align: left; background-color: rgb(255, 255, 255); margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14px; color: rgb(33, 33, 33);"
class="elementToProof">
Nanofabrication and Thin Film Deposition</div>
<div
style="direction: ltr; text-align: left; background-color: rgb(255, 255, 255); margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14px; color: rgb(33, 33, 33);"
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<span style="background-color: rgb(255, 255, 255);">Shared
Instrument Facility </span></div>
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style="direction: ltr; text-align: left; background-color: rgb(255, 255, 255); margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 14px; color: rgb(33, 33, 33);"
class="elementToProof">
Colorado School of Mines</div>
<div
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<br>
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<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif"
style="font-size:11pt" color="#000000"><b>From:</b> labnetwork
<a class="moz-txt-link-rfc2396E" href="mailto:labnetwork-bounces@mtl.mit.edu"><labnetwork-bounces@mtl.mit.edu></a> on behalf of Aamer
Mahmood <a class="moz-txt-link-rfc2396E" href="mailto:aamer@uchicago.edu"><aamer@uchicago.edu></a><br>
<b>Sent:</b> Wednesday, March 11, 2026 10:31 AM<br>
<b>To:</b> Christophe Clément
<a class="moz-txt-link-rfc2396E" href="mailto:christophe.clement@polymtl.ca"><christophe.clement@polymtl.ca></a>; Jeff Salzmann
<a class="moz-txt-link-rfc2396E" href="mailto:jks7@buffalo.edu"><jks7@buffalo.edu></a>; Network Fab
<a class="moz-txt-link-rfc2396E" href="mailto:labnetwork@mtl.mit.edu"><labnetwork@mtl.mit.edu></a><br>
<b>Subject:</b> [EXTERNAL] Re: [labnetwork] CHF3 availability?</font>
<div> </div>
</div>
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<span style="color:#9C6500; font-weight:bold">CAUTION:</span>
This email originated from outside of the Colorado School of
Mines organization. Do not click on links or open attachments
unless you recognize the sender and know the content is safe.</div>
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<div class="x_WordSection1">
<p class="x_MsoNormal">Jeff,</p>
<p class="x_MsoNormal">We had to purchase CHF3 in October
2025 and faced the same supply issue with Airgas, our
traditional supplier. Fortunately, Linde were able to
provide us at a very reasonable price and with a 4-6 week
lead time.</p>
<p class="x_MsoNormal">My contact is:</p>
<p class="x_MsoNormal"> </p>
<p class="x_MsoNormal">Kevin Paetsch</p>
<p class="x_MsoNormal">Territory Manager – Specialty Gases</p>
<p class="x_MsoNormal"><a class="moz-txt-link-abbreviated" href="mailto:kevin.paetsch@linde.com">kevin.paetsch@linde.com</a></p>
<p class="x_MsoNormal">Cell: 219-742 7479</p>
<div>
<p class="x_MsoNormal"><span style=""> </span></p>
<p class="x_MsoNormal"><span style="">Best regards,</span></p>
<p class="x_MsoNormal"><span style=""> </span></p>
<p class="x_MsoNormal"><span style="">--</span></p>
<p class="x_MsoNormal"><span style="">Aamer Mahmood</span></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt"> </span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt">Executive
Director</span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt">Pritzker
Nanofabrication Facility</span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt">William
Eckhardt Research Center</span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt">University
of Chicago</span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt">5640
S. Ellis Ave., Chicago, IL 60637</span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt"> </span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt">Tel:
+1 (773) 702 8903</span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:11.0pt">Web:
</span></b><a href="http://pnf.uchicago.edu/"
originalsrc="http://pnf.uchicago.edu/"
moz-do-not-send="true"><b><span
style="font-size:11.0pt; color:#467886">pnf.uchicago.edu</span></b></a><b><span
style="font-size:11.0pt"></span></b></p>
</div>
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<div
style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0in 0in 0in">
<p class="x_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 class="moz-txt-link-rfc2396E" href="mailto:labnetwork-bounces@mtl.mit.edu"><labnetwork-bounces@mtl.mit.edu></a>
<b>On Behalf Of </b>Christophe Clément<br>
<b>Sent:</b> Tuesday, March 10, 2026 5:12 PM<br>
<b>To:</b> Jeff Salzmann <a class="moz-txt-link-rfc2396E" href="mailto:jks7@buffalo.edu"><jks7@buffalo.edu></a>;
Network Fab <a class="moz-txt-link-rfc2396E" href="mailto:labnetwork@mtl.mit.edu"><labnetwork@mtl.mit.edu></a><br>
<b>Subject:</b> Re: [labnetwork] CHF3 availability?</span></p>
</div>
</div>
<p class="x_MsoNormal"> </p>
<div>
<p class="x_MsoNormal"><span style="color:#174E86">Hi Jeff</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:#174E86">I just
purchased an ED cylinder of CHF3 last week from
Advanced Speciality Gas, lead time is really short (2
days).</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:#174E86">Service
from this company is number 1.</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:#174E86"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:#174E86">Here is
the contact information:</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:#174E86"> </span></p>
</div>
<div>
<p class="x_elementtoproof" style="background:white"><b><span
style="font-size:16.0pt; font-family:"Arial",sans-serif; color:#1F497D">Matt
Pearce</span></b></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:14.0pt; font-family:"Arial",sans-serif; color:#1F497D">Advanced
Specialty Gases</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-family:"Arial",sans-serif; color:#1F497D">135
Catron Dr.</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-family:"Arial",sans-serif; color:#1F497D">Reno,
NV. USA 89512</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-family:"Arial",sans-serif; color:#1F497D">Ph:
775-356-5500</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-family:"Arial",sans-serif; color:#1F497D">Fax:
775-356-5571</span></p>
<p class="x_elementtoproof" style="background:white"><a
href="mailto:matt@advancedspecialtygases.com"
title="mailto:matt@advancedspecialtygases.com"
moz-do-not-send="true"><span
style="font-family:"Arial",sans-serif; color:#467886">matt@advancedspecialtygases.com</span></a></p>
<p class="x_elementtoproof" style="background:white"><a
href="https://urldefense.com/v3/__http:/www.advancedspecialtygases.com/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQU4-t8bw$"
originalsrc="https://urldefense.com/v3/__http:/www.advancedspecialtygases.com/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQU4-t8bw$"
title="http://www.advancedspecialtygases.com/"
moz-do-not-send="true"><span
style="font-family:"Arial",sans-serif">www.advancedspecialtygases.com</span></a></p>
</div>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:11.0pt; color:#242424"> </span><span
style="color:#174E86"></span></p>
<div>
<p class="x_MsoNormal"><span style="color:#174E86"> </span></p>
</div>
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<p class="x_MsoNormal"><span style="color:#174E86"> </span></p>
</div>
<p class="x_elementtoproof" style="background:white"><b><i><span
style="font-family:"Arial",sans-serif; color:#1F497D">Christophe
Clément</span></i></b></p>
<p class="x_elementtoproof" style="background:white"><b><span
style="font-size:10.0pt; font-family:"Arial",sans-serif; color:gray">Professionnel
de recherche</span></b></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">Laboratoire
de microfabrication (LMF)</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">Groupe
des Couches Minces (GCM)
</span><span style="color:black"><a
href="https://urldefense.com/v3/__http:/www.gcmlab.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ3QuS2jk$"
originalsrc="https://urldefense.com/v3/__http:/www.gcmlab.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ3QuS2jk$"
moz-do-not-send="true"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:#0563C1">www.</span></a></span><u><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:#0563C1">polymtl.ca/gcmlab</span></u></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">Ecole
Polytechnique de Montréal
</span><span style="color:black"><a
href="https://urldefense.com/v3/__http:/www.polymtl.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQrlyxPQU$"
originalsrc="https://urldefense.com/v3/__http:/www.polymtl.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQrlyxPQU$"
moz-do-not-send="true"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">www.polymtl.ca</span></a></span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">Département
de génie physique</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:10.0pt; font-family:Wingdings; color:#1F497D">*</span><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:#333333"> </span><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">2900
Boulevard Edouard Monpetit</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">Pavillon
JAB<br>
Campus de l'Université de Montréal<br>
Montréal (Québec) H3T 1J4</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray"><br>
</span><span
style="font-size:10.0pt; font-family:Wingdings; color:#1F497D">8</span><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:#333333"> </span><span
style="color:black"><a
href="mailto:christophe.clement@polymtl.ca"
moz-do-not-send="true"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif">christophe.clement@polymtl.ca</span></a></span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:10.0pt; font-family:Wingdings; color:#1F497D">(</span><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:#333333"> </span><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">514
340 4711 #2417</span></p>
<p class="x_elementtoproof" style="background:white"><span
style="font-size:8.0pt; font-family:"Arial",sans-serif; color:gray">Fax :
514 340 5195</span></p>
</div>
<div class="x_MsoNormal" align="center"
style="text-align:center">
<hr size="1" width="98%" align="center">
</div>
<div id="x_divRplyFwdMsg">
<p class="x_MsoNormal"><b><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">De
:</span></b><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">
Jeff Salzmann <</span><a
href="mailto:jks7@buffalo.edu" moz-do-not-send="true"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif">jks7@buffalo.edu</span></a><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">><br>
<b>Envoyé :</b> 10 mars 2026 11:37<br>
<b>À :</b> Network Fab <</span><a
href="mailto:labnetwork@mtl.mit.edu"
moz-do-not-send="true"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif">labnetwork@mtl.mit.edu</span></a><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">><br>
<b>Objet :</b> [labnetwork] CHF3 availability?</span>
</p>
<div>
<p class="x_MsoNormal"> </p>
</div>
</div>
<div>
<div>
<p class="x_MsoNormal"><span style="color:black">Good
morning,</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">I am
looking to purchase some CHF3 for a new RIE system I
am having installed here.</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">Airgas
has informed me that, "Also, note that R-23 as of
January 1, 2022, CHF3 (R23) has been identified for
Phasedown under the EPA AIM Act (</span><a
href="https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/phasedown-hydrofluorocarbons-hfcs-issuing-allowance-allocations__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ1Wsqirw$"
originalsrc="https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/phasedown-hydrofluorocarbons-hfcs-issuing-allowance-allocations__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ1Wsqirw$"
moz-do-not-send="true">https://www.epa.gov/climate-hfcs-reduction/phasedown-hydrofluorocarbons-hfcs-issuing-allowance-allocations</a><span
style="color:black"> ). The customer will either
need to provide us with an allotment from the EPA
(in MTeV's) in order to supply, or we can purchase
MTeV's on the open market for a significantly higher
cost.”</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">Since
that time, I have waited nearly three months for
them not to provide a quote.</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">According
to the EPA’s website on HFC “phase down”:</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><a
href="https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons*how-allowance-determined__;Iw!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQaQVF0ZU$"
originalsrc="https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons*how-allowance-determined__;Iw!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQaQVF0ZU$"
moz-do-not-send="true">https://www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons#how-allowance-determined</a><span
style="color:black"></span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">Application-specific
Allowances: Through at least 2030, EPA is issuing
application-specific allowances to entities that use
HFCs in one of four applications:</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<ol start="1" type="1">
<li class="x_MsoNormal" style="color:black">A
propellant in metered dose inhalers (MDIs)</li>
</ol>
</div>
<div>
<ol start="2" type="1">
<li class="x_MsoNormal" style="color:black">Structural
composite preformed polyurethane foam for marine use
and trailer use</li>
</ol>
</div>
<div>
<ol start="3" type="1">
<li class="x_MsoNormal" style="color:black">The
etching of semiconductor material or wafers and the
cleaning of chemical vapor deposition chambers
within the semiconductor manufacturing sector</li>
</ol>
</div>
<div>
<ol start="4" type="1">
<li class="x_MsoNormal" style="color:black">Onboard
aerospace fire suppression</li>
</ol>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">Can
anyone offer some guidance to either get the
allowance issued or a vendor that can help with
this?</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">Thanks!!!</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black">Jeff</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="color:black"> </span></p>
</div>
<div id="x_x_ms-outlook-mobile-signature">
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">Jeff
Salzmann</span></p>
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">Research
Assistant Professor of Electrical Engineering</span></p>
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">Cleanroom
Manager, Shared Instrumentation Laboratories</span></p>
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">School
of Engineering and Applied Sciences</span></p>
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">University
at Buffalo, 114A Davis Hall</span></p>
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">105
White Road</span></p>
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">Buffalo,
NY 14260-2500</span></p>
<p class="x_xmsonormal"><span
style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:black">Tel:
716.645.2584</span></p>
<p class="x_xmsonormal"> </p>
</div>
</div>
</div>
</div>
</div>
<br>
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