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<p class="MsoNormal">This is Rick Morrison from Draper, when we built our fab we have windows that let in sunlight to a clean corridor, on the Litho doors we used a yellow filter film attenuated the Sunlight.
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<p class="MsoNormal">Check this site out, good product<o:p></o:p></p>
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<p class="MsoNormal">Rick<o:p></o:p></p>
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<p class="MsoNormal">Richard Morrison<o:p></o:p></p>
<p class="MsoNormal">DMTS<o:p></o:p></p>
<p class="MsoNormal">Draper Laboratory<o:p></o:p></p>
<p class="MsoNormal">555 Technology Square<o:p></o:p></p>
<p class="MsoNormal">Cambridge Ma 02139<o:p></o:p></p>
<p class="MsoNormal">Office: 617-258-3420<o:p></o:p></p>
<p class="MsoNormal">Cell: 508-930-3461<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> <b>
On Behalf Of </b>Joseph Losby<br>
<b>Sent:</b> Wednesday, February 22, 2023 1:04 PM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [EXTERNAL] [labnetwork] Thoughts about sunlight entering cleanroom<o:p></o:p></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Hello, in the planning of our new facility the architects have placed windows along a side of the cleanroom (which is fine). Outside of the windows is a hallway which
is lined with large windows to the outside. This would allow for sunlight to pass through two sets of windows and into the cleanroom. Although standard windows are adequate for filtering a majority of shorter wavelength UV, some of the longer wavelength
UV (UV-A, ~300-400 nm) will still transmit. It is of my belief that it's standard practice not to have sunlight entering the cleanroom (especially a litho area). <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Are any of your cleanrooms exposed to sunlight (I haven't seen any) and, if so, what type of window filtering do you use?<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Cheers,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#666666">Joseph Losby, PhD.</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#666666">Operations Manager, qLab</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#666666">Quantum City, University of Calgary</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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