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<p class="MsoNormal"><span style="color:black">Good Morning <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">I only use Dry pumps in my clean room at Draper.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">I removed all of the oil pumps several years ago<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Mark R. April<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><img width="229" height="14" style="width:2.3854in;height:.1458in" id="Picture_x0020_1" src="cid:image001.jpg@01D592D2.2F985EC0" alt="https://intranet.draper.com/pcweb/media/branding/images/logo_styles/color_logo.jpg"></span><span style="font-size:8.0pt;font-family:"Cambria",serif;color:black"><br>
</span><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Senior Equipment Engineer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Microfabrication Laboratory Lead<br>
<i>555 Technology Square<o:p></o:p></i></span></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Cambridge, MA 02139<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black"><a href="mailto:mapril@draper.com"><span style="color:#0563C1">mapril@draper.com</span></a>
<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">O # 617-258-1613 C # 617-455-1596<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black"><a href="http://www.draper.com/"><span style="color:#0563C1">www.draper.com</span></a></span></i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<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-bounces@mtl.mit.edu <labnetwork-bounces@mtl.mit.edu>
<b>On Behalf Of </b>Pradeep Nyaupane<br>
<b>Sent:</b> Sunday, November 3, 2019 8:21 AM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Backing Vacuum Pump - Dry pumps vs Oil Pumps<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dear All,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> We have been using Dry pumps for turbo pump backing for Sputters, E-beam evaporators. And are planning to swap to oil pump with an anti-suck back valve, whenever required (in case dry pumps go bad).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">We would like to know whether any of you are using oil pumps are being used as backing pump for Turbo / Cryo / DP.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Any advice / suggestions would be greatly appreciated.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thank You in advance.<o:p></o:p></p>
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<span style="font-family:"Arial",sans-serif;color:#222222;background:white">Thanks & Regards,</span><span style="font-family:"Arial",sans-serif;color:#222222"><br>
<span style="background:white">Pradeep Nyaupane</span><br>
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<span style="background:white">Technical Superintendent,</span></span><o:p></o:p></p>
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<p class="MsoNormal">Equipment Maintenance Team In-charge, <o:p></o:p></p>
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<p class="MsoNormal">IITBNF, <span style="font-family:"Arial",sans-serif;color:#222222;background:white">Electrical Engg Dept </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#222222;background:white">IIT Bombay, India</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#222222;background:white">Tel No. 02225764471(O)</span><o:p></o:p></p>
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