India, April 28 -- What Is Extreme Ultraviolet (EUV) Lithography?

Extreme ultraviolet (EUV) lithography is a cutting-edge technique to manufacture modern computer chips. It's a type of photolithography, which utilises light to etch patterns onto silicon wafers, the foundation of integrated circuits (ICs).

How Does EUV Lithography Work?

EUV lithography involves an interplay of light, engineering and material science. The following is a step-by-step breakdown of the process:

EUV Light Source: The journey starts with generating extreme ultraviolet light. This is achieved by firing a high-powered laser at a tiny droplet of molten tin. The laser vaporises the tin, creating a hot plasma that emits EUV radiation at a specific wavelength (aro...