Still, modern manufacturing is dominated by two basic types of semiconductors: N-type and P-type. Like carbon, silicon has four electrons in its outermost electron shell, so it can form four bonds.

A solar cell is made of two types of semiconductors, called p-type and n-type silicon. The p-type silicon is produced by adding atoms—such as boron or gallium—that have one less electron in their ...

The diagram illustrates the basic design of an NPN junction transistor. Two slices of N-type semiconductor, the emitter and the collector, form a sandwich with a layer of P-type semiconductor ...

Instead of being a sandwich, MOSFETs have a channel of either N- or P- type semiconductor running through a ridge on top of the other type. As a voltage is applied to this channel, it creates an ...