photopositive
/ˌfoʊtoʊˈpɑzɪtɪv/
adjective
- Describing a material that becomes more soluble or removable when exposed to light, used in photolithography.
- Engineers prefer photopositive coatings for high-resolution imaging.
- The chip manufacturer switched to a photopositive resist for finer circuit patterns.
- In photopositive processes, the exposed areas wash away during development.