Hi All,

Photoresist bottle storage in the cleanroom is overfull. If you use Photoresist in the cleanroom and would like to keep your sample, make sure your bottle is labeled with a dated yellow sticker. I’ve posted instructional signs and stickers on the red Flammables Cabinet and marked refrigerator by the S-bay, and on the spin coater fume hood in N-bay, see below. Let me know if you can’t get to your sample by the end of the week, 12/12/2025, and I’ll try to assist. Contact me if you need additional stickers or have any questions.

Thank you,

Christian Bokrand

Senior Research and Safety Engineer

Birck Nanotechnology Center | Room 2287

Office: 765.496.7367 | Email: cbokrand@purdue.edu