A vacuum pump is a critical device widely used in various fields. Its primary function is to extract gases through different working principles, thereby creating and maintaining a vacuum environment in a specific space.

In industrial production, vacuum pumps play an indispensable role. For example, in the vacuum coating industry, vacuum pumps remove air from coating equipment, achieving a high-vacuum state in the chamber. This allows coating materials(such as metals or compounds) to evaporate or sputter, with atoms or molecules depositing onto the substrate in a straight-line motion, forming uniform, dense, and high-quality thin films. These films are widely used in optical devices, electronic components, and decorative materials, such as protective films for smartphone screens and anti-reflective coatings for camera lenses.

In semiconductor manufacturing, vacuum pumps are also essential. Processes like wafer cleaning, etching, and chip packaging​require a vacuum environment. A high-purity vacuum prevents contamination from impurity gases, ensuring the electrical performance and reliability of chips. For instance, in ion implantation, vacuum pumps evacuate gases from the reaction chamber, allowing ions to be implanted into silicon wafers with precise energy and dosage control, modifying their electrical properties to create various semiconductor devices​​.

In scientific research, vacuum pumps are equally vital. In astronomy, large telescope optical systems are assembled and calibrated in a vacuum to minimize air refraction interference. In physics experiments, such as studying low-temperature physics or superconductivity, vacuum pumps create ultra-low-pressure environments, eliminating air molecule interference and enabling accurate observations of material behavior under extreme conditions.

Additionally, vacuum pumps are used in the food packaging industry. By removing air from packaging, they extend shelf life by reducing oxygen levels, inhibiting microbial growth, and preventing oxidation, thus preserving taste and nutritional value.

In the medical field, vacuum pumps are employed in dialysis machines to remove air bubbles from dialysate, ensuring safe and efficient treatment for patients.

In summary, vacuum pumps serve wide-ranging and critical roles across industries, providing essential technical support​for modern​manufacturing, research, and daily life.