Vacuums are used in industry and commerce for packaging, drying, suction and pick-and-place. Some process engineering operations are carried out in a vacuum because low pressure is an advantage on temperature-sensitive products. And in a vacuum column, it is even possible to split azeotropic mixes.
The most important area of applications for vacuum engineering is in the semiconductor industry, which accounts for around a 40 percent share. Chip manufacturers work in a high-vacuum range of between 10–3 and 10–7 mbar. It is only in this pure atmosphere that 100 percent circuits can be manufactured during doping. Amongst relatively new users, mention can be made of the solar section, currently enjoying an international boom, with its hunger for wafers as the carrier material in the production of modules. The sector for surface coatings and finishes has, to date, enjoyed a share of just under nine percent of the total vacuum technology market.
EVP Vacuum states that it is primarily rotary vane pumps, Roots pumps and dry pumps which are used for rough and medium vacuum applications. Turbomolecular pumps are employed to produce a high and ultra-high vacuum.
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