The quartz resonator can be used in different types of high frequency electronic circuits through electromechanical transducing of the piezo phenomena. Compared with other peizo substances, high purity crystal as the vibrating body provides high stability and excellent Q and temperature characteristics. High quality "Crystal" of FARGO has been produced in high volume since the construction of the synthetic quartz part in 1992 with its most advances production facility under strict quality control. It is now extensively used for resonators, filters and for other quartz devices.