etching process

How Does Etching Work?

Etching generally involves several key steps:
Masking: A mask is applied to the material to protect certain areas. This mask can be made of photoresist, metals, or oxides.
Exposure: In the case of dry etching, the material is exposed to a plasma or gas. For wet etching, the material is immersed in a chemical bath.
Etching: The exposed areas of the material are etched away, leaving behind the desired pattern.
Cleaning: The material is cleaned to remove any residual chemicals or particles.

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