[labnetwork] "yellow" film for windows

[Lapointe, Jean]

Hi Dennis,

We just went through the same process after replacing our fluorescent fixtures by LEDs.
Rolls of the Y520E212 film were purchased through Microchemicals in Germany (www.microchemicals.com<http://www.microchemicals.com>).

Wafers were coated with resist and left exposed to the yellow light for 5 days and then developed for 1 min. The change in resist thickness was in the 3-6 % range.
By contrast, the resist was completely developed for wafers exposed to the light from fixtures with TAPR50 film.
Another yellow film was purchased through a local cleanroom equipment supplier but we do not have information on the manufacturer. From what I remember it performed worse than the TAPR50 film.

Good luck,
Jean


Dr Jean Lapointe
ICT portfolio,
National Research Council, Canada




From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Dennis Schweiger
Sent: Friday, February 10, 2017 11:20 AM
To: Fab Network
Subject: [labnetwork] "yellow" film for windows

Good morning all,

we're in the process of upgrading our lighting, and correcting a couple of the "yellow" light issues we've uncovered.  We have windows within our facility that should have been covered, but weren't, and have some currently installed films that don't filter out as much UV as we'd like.  Has anyone recently worked with a film manufacturer, and found someone that can provide a roll stock material that works for them in a glass application, and something they're happy with?  The couple of places I've contacted so far are more into architectural films, so they're all over the variety of colors, but when I broach the subject of wavelength filtering to remove UV, it seems that's a "mad scientist" request.

Thank you,

Dennis Schweiger
Facilities Manager
University of Michigan/LNF
1301 Beal
Ann Arbor, MI 48109

734.647.2055 Ofc
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