Home > Science What Is a Transistor, and How Does It Work? Join us for a deep dive into the tiny technology that powers the world.

How Do Transistors Work? At its core, a transistor is an electronic gatekeeper. It controls the flow of electric current through a semiconductor material.

What does Nokia Bell Labs look like 75 years since the transistor’s invention? It’s responsible for the transistor, information theory, pioneering satellite work and more.