[labnetwork] Thoughts about sunlight entering cleanroom

[Kyle Keenan]

We have the same setup as Draper. Whatever filtering we have in place on
the sliding glass doors to the litho bays must be working, because we've
had no issues, and the afternoon sun shines very brightly on the front of
our building, which is primarily glass.

Kyle

On Wed, Feb 22, 2023 at 4:33 PM Joseph Losby <joseph.losby at ucalgary.ca>
wrote:

> 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).
>
> Are any of your cleanrooms exposed to sunlight (I haven't seen any) and,
> if so, what type of window filtering do you use?
>
> Cheers,
>
> Joseph Losby, PhD.
> Operations Manager, qLab
> Quantum City, University of Calgary
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-- 
Kyle Keenan

Senior Manager - Laboratory Operations
Quattrone Nanofabrication Facility
University of Pennsylvania
P: 215-898-7560
F: 215-573-4925
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