Hole mobility refers to the ability of holes, which are the absence of electrons in a semiconductor, to move through the material. In semiconductors like silicon, when an electron leaves its position, it creates a hole that can be filled by neighboring electrons. This movement of holes contributes to electrical conductivity. The mobility of holes is influenced by factors such as temperature and the material's properties. Higher hole mobility means that holes can move more easily, leading to better performance in electronic devices. Understanding hole mobility is crucial for designing efficient transistors and other semiconductor components.