Question

what is minority carrier injection

Answer 1

When a p-n juction is forward biased,minority carriers are injected into the semiconductors on the two sides of the junction. These minority carriers diffuse about an eventually recombine with the majority carriers. The distribution of theminority carriers is described by the diffusion equation.

Answer 2

Minority carrier injection, in electronics, a process taking place at the boundary between p-type and n-type semiconductor materials, used in some types of transistors. Each semiconductor material contains two types of freely moving charges: electrons (negative charges) and holes (positive charges).