: How are manufacturers able to manufacture really small cpu transistors?

Question

: How are manufacturers able to manufacture really small cpu transistors?

In: Technology

Answer 1

You know how you can use a magnifying glass to burn stuff by concentrating rays in a tiny area?

Manufacturers use a magnifying glass with a pattern on it, then the concentrated rays burn out very tiny patterns in a tiny area. The burnt areas have different physical properties to unburnt areas, and with the right pattern this creates a transistor.