Kiyo 45

Etchers remove selected material from a wafer after lithographic patterning has defined where material should remain. Plasma etch equipment sits in pattern transfer steps of semiconductor fabrication and is used to shape device features in films that later become active structures, contacts, and interconnect elements.

Reactive ion etch systems generate plasma in a low-pressure chamber and use that plasma to remove exposed material from patterned wafers. Cluster etch platforms commonly move wafers by vacuum-compatible handling modules between load interfaces, process chambers, and strip or clean chambers without breaking the controlled environment.

Etch equipment is used after pattern definition so that resist or hard-mask features can be transferred into underlying films. Etch steps are commonly placed between film formation steps and later strip or clean steps, and repeated through device fabrication as different material layers are patterned.

Plasma etchers are used wherever patterned removal of conductive, dielectric, silicon, or specialty films is needed during device fabrication. Such tools are applied to profile control, selectivity control, and dimensional transfer in structures that become transistor elements, isolation regions, contacts, and wiring features.