<div dir="ltr">Hi Dan<div><br></div><div>We used to have PDMS processing that was done in a separate area of our cleanroom, but there was not really a bright line of separation. That turned out to be a problem because the uncured PDMS, and small pieces of PDMS, still made their way out into the other parts of the cleanroom.</div><div><br></div><div>We now have a separate area behind a sliding door that is exclusively for work with PDMS (which is admittedly a luxury). All work with PDMS (mixing, curing, coring, and cutting) must be done in that area. Also, we have radically different colored gloves for use in that area. They are put on over the regular cleanroom gloves when they enter that area for work with PDMS. Before they leave the area, they must remove those gloves. If they do not remove them, the different color makes it obvious.</div><div><br></div><div>Hope that is helpful.</div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div style="font-size:12.8px"><span style="font-size:small">Eric</span></div><div style="font-size:12.8px"><span style="font-size:small"><br></span></div><div style="font-size:12.8px"><span style="font-size:small">Eric Johnston</span><br></div></div><div><div>Director, Quattrone Nanofabrication Facility</div><div>Singh Center for Nanotechnology</div>University of Pennsylvania<div>3205 Walnut Street, #109A</div><div><a href="mailto:ericdj@seas.upenn.edu" target="_blank">ericdj@seas.upenn.edu</a><br><div>T. <a href="tel:215.573.6695" value="+12155736695" target="_blank">215.573.6695</a></div></div></div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 4, 2024 at 2:50 PM Dan P. Woodie <<a href="mailto:daniel.woodie@princeton.edu" target="_blank">daniel.woodie@princeton.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>
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<p class="MsoNormal">I am curious how many fabs allow PDMS mixing in their main cleanrooms and how many require that work done in separate isolated spaces or noncleanroom labs. My experience has been that they can be in the same space if careful glove protocols
are used to avoid spreading the unpolymerized precursors around the facility, but I am interested in other’s experiences. Thanks for the shared knowledge.<u></u><u></u></p>
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<p class="MsoNormal">Dan<u></u><u></u></p>
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<p class="MsoNormal">Daniel Woodie<u></u><u></u></p>
<p class="MsoNormal">Director, Micro/Nano Fabrication Center, Princeton Materials Institute<u></u><u></u></p>
<p class="MsoNormal">Princeton University<u></u><u></u></p>
<p class="MsoNormal">155 Andlinger Center<u></u><u></u></p>
<p class="MsoNormal">86 Olden St<u></u><u></u></p>
<p class="MsoNormal">Princeton, NJ 08540<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">(609)258-5922 (office)<u></u><u></u></p>
<p class="MsoNormal">(607)227-2993 (cell)<u></u><u></u></p>
<p class="MsoNormal"><a href="mailto:daniel.woodie@princeton.edu" target="_blank">daniel.woodie@princeton.edu</a><u></u><u></u></p>
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