Advanced Materials for Electronics

Positive Photomask Cleaners

PPC 1-1, PPC 593 and CA-40

Transene Positive Photomask Cleaners are aqueous, water miscible cleaners for critical photomask cleaning applications. PPC 1-1 Positive Photomask Cleaner may be used on a variety of delicate mask substrates including iron oxide, chrome, or emulsion without damaging the surface. PPC 593 is a high pH (> 12) cleaner containing non-PFOS surfactant and suitable for glass, quartz, and other substrates. CA-40 is the traditional Cyantek formulation with room temperature operation.


Property PPC 1-1 PPC 593 CA-40
Appearance Colorless liquid Colorless liquid Colorless liquid
System Non-Toxic, Alkaline Ammonia Alkaline
Viscosity (20°C) 60 cps 26° Baume 60-80 cps
Specific Gravity 1.02 g/cc 0.89 g/cc 1.02 g/cc
Shelf Life 1 year 1 year 1 Year
pH 9-10 12 ~12.5


Prior to further processing, the photomask should be submerged in Positive Photomask Cleaner at room temperature. Cleaning is enhanced by ultrasonic or megasonic agitation. Alternatively, manual scrubbing is effective. Care should be taken not to damage the part while scrubbing gently.