Semiconductor industry is inseparable from vacuum technology.  Production of semiconductor components.

1. it is necessary to incorporate other elements into the silicon wafer.

2. when producing integrated circuits, complex metal films and insulating films must be formed.

3. surface etching and other complex processes should be carried out.  If the vacuum in the production process is not enough, there will be serious consequences after dust or oil droplets on the surface.  The width of the thin wire in the IC is one-third the diameter of the smoke particles emitted when smoking, and nearly one-thousandth the diameter of a particle of dust.  For integrated circuits, even a particle of smoke drops, like a large airplane parked on a highway, preventing electrons from passing through or short-circuiting.