Vitesse Semiconductor Corporation designs communications integrated circuits for network equipment. The Company designs and supplies communications integrated circuits for manufacturers of core, access, enterprise, metropolitan, and storage area network equipment. It develops gallium arsenide (GaAs) integrated circuits, which, although harder to make, perform at higher speeds than silicon chips. Its chips are primarily used in communications gear. The Company employs Gallium Arsenide, CMOS, and Silicon Germanium Technologies.