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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I’ve heard of at least a couple other instances where an obsolete leybold MAG.DRIVE controller has failed and no one can repair it. It seems endemic to their
older analog pumps. That said, I haven’t heard anything bad about digital models, and I think my analog MAG.DRIVE controller ran over fifteen years before failing, which isn’t a bad lifetime.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Regarding other pumps I usually go with vendor spec, but lately I’ve been moving to replace some wet pumps with dry/scroll options on our older (20+ years) equipment
in an effort to save time on maintenance and money on fomblin oil.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Sean Rinehart<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Research Engineer – Plasma and Metrology Systems<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Birck Nanotechnology Center 2287B | 765.496.9189<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><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 [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>Kevin Owen<br>
<b>Sent:</b> Friday, August 17, 2018 11:58 AM<br>
<b>To:</b> XIN GUO <sguo18@yorku.ca><br>
<b>Cc:</b> Fab Network <labnetwork@mtl.mit.edu><br>
<b>Subject:</b> Re: [labnetwork] </span><span style="font-size:11.0pt;font-family:"MS Gothic"">回覆</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">: Leybold turbo pump controller<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Shane,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">My guess is they couldn't strike a contract with Leybold to get a good deal on the pumps. Because I also know vendors that exclusively use Leybold pumps. In my personal experience, I can't say I've had significantly
more or significantly fewer "bad" experiences with any particular pump vendor (although the same can not be said for refurbishment companies).<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Generally, I take the vendor recommendation for high vacuum pumps (turbos, cryos, etc), but request a specific backing/roughing pump, since we have standardized those at the LNF. The vendor should be able to provide
the pumping capacity requirement and you can choose based on that (we have standardized to 2 pumps, one big, one small, and choose the one that meets/exceeds the requirement from the vendor). If you don't have anything standardized, I would just go with the
recommendation of the vendor, although if they have several options I might see if one of them matches an existing piece of equipment. For us, this is primarily intended to reduce the number of on-site spares we need.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">-Kevin<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">On Fri, Aug 17, 2018 at 9:01 AM, XIN GUO <<a href="mailto:sguo18@yorku.ca" target="_blank">sguo18@yorku.ca</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">Hi Colleagues,<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">My question might not be quite related to this topic but I hope to get some feedback.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">We are considering to acquire a PECVD and RIE. I saw some buyers explicitly exclude Leybold pumps in their requirements. I am open to all suppliers but it does seem that Leybold
pumps may have more issues than other reputable suppliers. Or, maybe I just got a wrong impression. Anyway, I do not mean to be bias on any supplier.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">Btw, any rule of thumb for choosing pumps for cleanroom equipment?<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">Thanks<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">Shane<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in">On Fri, Aug 17, 2018 at 8:37 AM Wing Leong CHUNG <<a href="mailto:mfcchung@ust.hk" target="_blank">mfcchung@ust.hk</a>> wrote:<o:p></o:p></p>
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<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">Dear all,<o:p></o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">I would like to express my apperciation to the replies from network members, they really give me many valuable suggestions and information regarding to my
problem.<o:p></o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">With Many Many Thanks<o:p></o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">Jeff Chung<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">寄件者</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
Wing Leong CHUNG<br>
</span><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">寄件日期</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
2018</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">年</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">8</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">月</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">16</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">日</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
15:32<br>
</span><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">收件者</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
</span><a href="mailto:labnetwork@mtl.mit.edu" target="_blank"><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>
</span><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">主旨</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
Leybold turbo pump controller</span><span style="font-family:"Calibri",sans-serif;color:black">
<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black"> <o:p></o:p></span></p>
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<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">Dear network members,<o:p></o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">We have two turbo pump controllers (Mag Drive 1000, to drive MAG 900 turbo pump) out of order. It shows "Bearing Sensor" "Levitation Fail" onto the display.
We swarp a good controller to the system, no error message appear. I guest the fault is come form the controller itself. However, I contact with Leybold but they said this model is obsoleted, no service can be provide further. <o:p></o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">Is there any suggestion of company can provide service to repair the controllers? <o:p></o:p></span></p>
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<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:#212121">Jeff Chung<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:#212121">Engineer<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:#212121">Nanosystem Fabrication Facility (NFF) of Hong Kong University of Science and Technology (HKUST)<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-family:"Calibri",sans-serif;color:#212121">Cell: (852)-2358-7211<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in">_______________________________________________<br>
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_______________________________________________<br>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">-- <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Kevin Owen<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Senior Engineer in Research<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Operations Group, Lurie Nanofabrication Facility<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">University of Michigan<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">(734) 545-4014<o:p></o:p></p>
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