photoresist

Chip-making light mask

Photoresist is a light-sensitive material used in manufacturing microchips and printed circuits.

Applied as a coating, it hardens or softens when exposed to light through a patterned mask, allowing precise etching of the underlying surface.

The process enables the microscopic detail required for modern electronics: The semiconductor fab uses extreme ultraviolet photoresist for its most advanced chips.

lithography

exposure

State of being unprotected

develop · developer · resolution · wafer · cleanroom · microfabrication · proximity · projection · reticle · overlay

semiconductor

wafer

Thin crisp disk

microchip · silicon · substrate · device · gate · layer · dielectric · interconnect · MEMS · foundry

material

polymer

Large repeated-unit molecule

  • resinViscous plant secretion
  • sensitizerSubstance increasing response
  • epoxyCatalyst-cured bonding compound

film · coating · viscosity · thickness · adhesion · solubility · tone · contrast · sensitivity · shelf-life

processing

coat

Outer garment or layer

ash · etch · bake · cure · rinse · dry · spin · spray · dip · rework

patterning

feature

Distinguishing quality or element

profile · resolution · pitch · spacing · dense · isolated · roughness · collapse · bridging · scumming

Opposites
function in lithography process

photoresistetchant

Chemical for controlled corrosion

developer · solvent · stripper · hydrofluoric acid · acid

response to light exposure

photoresistphotomask

Patterned plate for chip fabrication

reticle

Family

photo, resist, photograph, resistance, photon, resistor, photosynthesis, photolithography, photoengraving

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G