Abstract: An apparatus for manufacturing semiconductors is provided by which adhesion of moisture to a wafer in an EFEM is easily prevented. The apparatus 1 for manufacturing the semiconductors comprises processing equipment 30 that processes a wafer 90, a FOUP 40 that supplies the wafer 90 and that houses the wafer 90 that has been processed, an EFEM 10 that transfers the wafer 90 between the FOUP 40 and the processing equipment 30, a fan and filter unit 20 that sends an airflow 72 from above to the EFEM 10, an ultrasonic oscillator 52 that generates high-frequency power, and a vibrator 54 that generates ultrasonic waves 80 by using the high-frequency power that is generated by the ultrasonic oscillator 52 and that applies the ultrasonic waves 80 to the wafer 90 that is transported in the EFEM 10 and that has been processed.

Abstract: The present invention has as its object to provide an air filter not only for trapping suspended particulate substances but also for not generating hazardous contaminates in the air, which cause trouble in the manufacture of semiconductor devices. As a binder to bind fibers of the air filter together, a polymer dispersion is used in which a copolymer of a hydrophilic monomer and a hydrophobic monomer is dispersed in water. As an initiator for polymerization of the copolymer, an organic peroxide is used. When an air filter (8) is installed downstream of a chemical filter (7), the space (4) placed downstream of the air filter (8) is made substantially free of organic substances and/or inorganic substances that cause trouble in the manufacture of semiconductor devices.