Cleanroom Supplied Chemicals

Cleanroom Supplied Chemicals

For use in Acid Hoods

Acids

  • Acetic Acid

  • Buffered Oxide Etch (6:1 HF with NH4F buffer)

  • CR14S Chromium etch

  • Hydrochloric Acid

  • Nanostrip 2x

  • Nitric Acid

  • Phosphoric Acid

  • Sulfuric Acid

  • Hydroflouric Acid

Concentrated Bases

  • Ammonium Hydroxide

  • Tetramethlyammonium hydroxide

Oxidizers

  • Hydrogen Peroxide

 

For use in Solvent Hoods

Solvents

  • Chlorobenzene

  • HMDS

  • PRS 2000 (NMP mixture)

  • Remover PG (99% NMP)

  • Xylene

  • Acetone

  • Isopropanol

  • Methanol

  • Toluene

  • MIBK/IPA 1:3

  • SU-8 Developer (PGMEA)

For use in Lithography Hoods (Solvent Hoods with Sinks and Yellow Light)

May use chemicals for use in Solvent Hoods, EXCEPT PRS 2000 or Remover PG, plus:

Non-Concentrated Basic Developers

  • AZ Developer

    • Na based for high selectivity with DNQ photoresists, main appeal is lack of Al etch

  • AZ 340

    • Na based, needs custom dilution, with higher dilutions for thinner resists to improve process control, and lower dilutions to improve development rate.

  • AZ 400K

    • 1.4 N Buffered KOH used in 1:4 dilution, buffered with potassium borate. Recommended for thick resists

  • MF-26A

    • 0.26N TMAH w/ Polyglycol surfactant

Photoresists

  • AZ1518

  • AZ9260

E-Beam Resists

  • HSQ

  • 950 PMMA A4

  • AR-P 6200.13

Common Additional Lithography Chemicals (Non-stocked)

  • S1800 series

    • PGMEA + Novolak & DNQ

  • SPR 220

    • Thick positive resist, Anisole + Ethyl lactate

  • ZEP

    • Anisole + Methylstyrene & Methyl Alpha-Chloroacrylate. AR-P 6200 is chemically identical

  • LOR 3A

    • Lift off resist, Cyclopentanone + PGME

  • MCC Primer 80/20

    • HMDS + PGMEA

  • SU-8