Vacuum Pumps
Vacuum pumps — rotary vane, turbomolecular, scroll, cryogenic, and ion pumps — remove gas from a system to achieve the pressures required by electron microscopes, thin-film deposition equipment, and glove-box regeneration cycles. As a hard skill it requires selecting the pump type and staging for the target pressure range, performing routine maintenance such as oil changes, trap cleaning, and rotor inspection, and troubleshooting leaks with residual gas analyzers or helium leak detectors. Battery researchers rely on vacuum systems for SEM and TEM operation, ALD and sputter deposition, and electrolyte degassing, where inadequate vacuum allows residual gases to contaminate samples, degrade film quality, and generate background signals in analytical instruments.