Negative photoresists still predominate but as geometries shrink positive photoresists are gaining ground. E-beam resists for direct write and x-ray resists are still in the future. Some topics discussed are these: resolution; development systems; plasma developable photoresist; metal-ion-free developers; negative versus positive resists; new developments; multilevel techniques; contrast enhancement; E-beam resists; X-ray resists; and some conclusions.
机构:
Plant Engineering, Barrington, IL,, USA, Plant Engineering, Barrington, IL, USAPlant Engineering, Barrington, IL,, USA, Plant Engineering, Barrington, IL, USA