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Freiberger Compound Materials GmbH (FCM) is a worldwide leading compound semiconductor substrate supplier with more than 50 years of experience in the field of semiconductor materials. The company has established an outstanding reputation as the sole supplier of both VGF (Vertical Gradient Freeze) and LEC (Liquid Encapsulated Czochralski) GaAs wafers. Our efficient and highly automated production techniques – from synthesis and crystal growth to wafer polishing and cleaning - enable us to offer highest quality wafers for microelectronic and optoelectronic applications.