What is a semiconductor?
The Gate That Thinks
What is a semiconductor?
You flip a light switch, and electricity zips through the wires — but how does that tiny switch in your phone decide which way the electricity should go? The answer is hiding inside a material with a funny name: a semiconductor.
Most materials pick a side. Metals like copper are excellent conductors — electricity flows through them like water through a wide-open pipe. Rubber and plastic are insulators — electricity can't get through at all, like a pipe sealed with concrete.
