Transistors are tiny electronic components that act as switches and amplifiers, and they dwell at the heart of modern technology. In simple terms, a transistor can turn a flow of electricity on or off ...

Building things in a lab is easy, at least when compared to scaling up for mass production. That’s why there are so many articles about fusion being right around the corner, or battery technology that ...

Transistors leverage multiple PN junctions. In a BJT, for example, an NPN transistor has a thin P-type base between an N-type emitter and N-type collector. A small current into the base-emitter ...