Definition

A special type of film that changes when exposed to light, used in making patterns on surfaces like semiconductor chips.

Example

The engineer applied a layer of photoresist to the silicon wafer before etching the circuit design.

Conversation

Have you ever worked with photoresist in any of your projects?

Yeah, I used it for a circuit design class last semester.

That's cool! I heard it's really important for making semiconductor chips.

Absolutely, it helps in transferring the patterns accurately.

Synonyms & Antonyms

Root Explanation

Photoresist → It is formed from "photo-" (from Greek "phōs", meaning light) and "resist" (from Latin "resistere", meaning to stand back or oppose). The word describes a material that reacts to light and resists etching or development processes in photolithography.

Memory Tip

Think of 'light' ('photo-') and a material that 'stands back' or 'opposes' ('resist') when exposed to it — that's how photoresist works.

Visually Confused Words