TYPES OF PHOTORESIST MATERIALS
Can be classified as one or two component
One component
- polymer that undergoes photochemical reaction(polystyrene systems)
- PMMA(Polymethyl methacrylate)
Two component
- sensitizer molecule(monomeric) dissolved in an inert polymeric matrix(Phenols, Acrylics, meta and para acetoxystyrene, azides)
- Phenolic resin matrix and diazonaphthoquinone
- poly cis-isoprene resin matrix and bisazide
- Phenol-formaldehyde copolymer and diazoquinone