View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. What Is
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?

The substrate is then exposed to chemicals which produce a solid material which condenses on its surface.

Finally, the etching takes place, which chemically removes layers from the surface of the substrate, leaving only the wanted pattern.

Content from our partners
Scan and deliver
GenAI cybersecurity: "A super-human analyst, with a brain the size of a planet."
Cloud, AI, and cyber security – highlights from DTX Manchester

More generally, lithography is a term for printing onto a flat surface by coating it in a substance that repels ink except for where the pattern is supposed to be.
The word comes from the Ancient Greek words for ‘stone’ and ‘writing’.

Topics in this article : ,
Websites in our network
Select and enter your corporate email address Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
  • CIO
  • CTO
  • CISO
  • CSO
  • CFO
  • CDO
  • CEO
  • Architect Founder
  • MD
  • Director
  • Manager
  • Other
Visit our privacy policy for more information about our services, how Progressive Media Investments may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.