Photoresist isMaterials whose properties change when exposed to lightis.

A very thin layer is applied to the surface of the wafer that forms the basis of the semiconductor, and by shining light through a mask on which the shape of the circuit is drawn,The properties of the material change between the parts that are exposed to light and those that are not.I will.

Afterwards, by treating with chemicalsKeep only the necessary parts.This creates an invisible, intricate "template" for the circuit.