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February 20, 2017

What is lithography?

Lithography is used in the production of electrical components.

By Alexander Sword

In computing, lithography is the process of imprinting patterns onto semiconductors to use in circuits.

Photolithography is used to transfer a pattern from a photomask to the surface of a substrate.

The first stage is the imposition of a structure on the beam of light, which is passed through a mask and projected onto the silicon wafer.

The ‘resist’, which is a coating on the wafer, undergoes chemical changes when exposed to light. The solubility of the material is modified and formed into a stencil through the application of a solvent.


What’s the next stage?

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