<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Check your fire codes and permits. Seattle/Washington has specific requirements for “Semiconductor Manufacturing Facilities” and is the most restrictive of the various codes relevant to us that limit occupancy, so that is what we have to go by.<div><br></div><div>I wish I could offer more. Other than during the height of the pandemic when distancing was a limiting factor to us we haven’t had to deal with foot traffic hitting our limits. We do have the capability, however, to limit occupancy at the door and to link tools that are close to each other together such that only one may be booked/used at a time.</div><div><br></div><div>-Shane</div><div><br></div><div><br id="lineBreakAtBeginningOfSignature"><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br><blockquote type="cite">On Dec 22, 2023, at 12:43 PM, Deng, Jiangdong <jdeng@cns.fas.harvard.edu> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p class="MsoNormal">Hi, Savitha, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have the same question as Iulian, “where did the maximum capacity of 50 come from?” How big is your cleanroom and the actual working area for users?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It is a good topic, though, since we in CNS-Harvard are facing the similar situation. Our cleanroom (CNS -Harvard) size is ~ 10.5 k sq ft, but it includes the chases, gowning room, and tool holdings. So, the real open work area is tight
(<2-3k sq ft) based on our user size. We usually see 25-35 users working in the CR at a time. If the user number goes over 40, the traffic becomes heavy and worrisome. During the pandemic, we had some approaches to limit the CR occupancy, for example, putting
the limit on the door entry and tool scheduling. However, with more users coming back and the research getting busier, we can’t just simply keep the restriction on without a solid legislation base. We (with the school EHS) are studying and working on this
topic, but so far haven’t found any clear code from OSHA or other resources for the CR occupancy limit. It would be greatly appreciated if anyone happens to know and can share the related regulations.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards and Happy holidays to everyone!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-JD<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-- Jiangdong Deng (JD), Ph. D<o:p></o:p></p>
<p class="MsoNormal">Associate Director, <o:p></o:p></p>
<p class="MsoNormal">Center for Nanoscale Systems <o:p></o:p></p>
<p class="MsoNormal">Head of Nanofabrication Facility, <o:p></o:p></p>
<p class="MsoNormal">Harvard University, <o:p></o:p></p>
<p class="MsoNormal">11 Oxford St., LISE-G54, <o:p></o:p></p>
<p class="MsoNormal">Cambridge, MA 02138<o:p></o:p></p>
<p class="MsoNormal">Tel: 617-495-3396 <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">labnetwork <labnetwork-bounces@mtl.mit.edu> on behalf of Iulian Codreanu <codreanu@udel.edu><br>
<b>Date: </b>Friday, December 22, 2023 at 11:46 AM<br>
<b>To: </b>Savitha P <savithap@iisc.ac.in>, labnetwork@mtl.mit.edu <labnetwork@mtl.mit.edu><br>
<b>Subject: </b>Re: [labnetwork] High footfall in the cleanroom<o:p></o:p></span></p>
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<p class="MsoNormal">Hi Savitha,<br>
<br>
I would start by recalling where the maximum capacity of 50 came from. If it was determined based on a code (fire, building) you have to stick to it and look into strategies to spread out the work in the cleanroom. If it was not based on a code, I think you
have flexibility in allowing 70 users in at a given time if they do not "bump into each other".<br>
<br>
Cheers,<br>
<br>
Iulian<br>
<br>
<br>
</p>
<pre>iulian Codreanu, Ph.D.</pre>
<pre>Director, Nanofabrication Facility</pre>
<pre>University of Delaware</pre>
<pre>Harker ISE Lab, Room 163</pre>
<pre>221 Academy Street</pre>
<pre>Newark, DE 19716</pre>
<pre>302-831-2784</pre>
<pre><a href="https://urldefense.com/v3/__https://udnf.udel.edu__;!!K-Hz7m0Vt54!jj7r30CxLxUpDX5nc3OtQq0brUDSCFE83heiYwGT-ErFdzVA88O6QLcnao7nYWEqzxpD2aJgUmnbz87s9K46Xw$">https://udnf.udel.edu</a></pre>
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<p class="MsoNormal">On 12/22/2023 3:57 AM, Savitha P wrote:</p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Hi!<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">We are experiencing a high number of people in our cleanroom, with 50-70 users at a time against a maximum capacity of 50. I would appreciate it if you could share
strategies used in your facilities to reduce the number of people in the cleanroom. Do you have any restrictions on students during the day or any incentives for working after office hours, for both startups and industry?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Savitha<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Dr. Savitha P<br>
Chief Operating Officer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">National Nanofabrication Centre<br>
Centre for Nanoscience and Engineering<br>
Indian Institute of Science<br>
Bangalore - 560012<br>
India.<br>
Ph. +91 80 2293 3319<br>
</span><a href="https://urldefense.com/v3/__http://www.cense.iisc.ac.in__;!!K-Hz7m0Vt54!jj7r30CxLxUpDX5nc3OtQq0brUDSCFE83heiYwGT-ErFdzVA88O6QLcnao7nYWEqzxpD2aJgUmnbz87VcyDgTA$"><span style="font-size:12.0pt">www.cense.iisc.ac.in</span></a><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<pre>_______________________________________________</pre>
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