IDT CrystalFree Piezo MEMS (pMEMS?) Oscillator technology is transforming the frequency control market. Combining the advantages of piezoelectric quartz with the advantages and reliability of silicon MEMS resonators, IDTs pMEMS resonator technology combines the strong electromechanical coupling of the piezoelectric material with the stability and low damping of single crystal silicon to create a passive frequency source of unparalleled performance and reliability. Based on over 40 patents (granted or filed), IDTs CrystalFree pMEMS resonators are the worlds smallest hermetically-sealed wafer level package (WLP) resonators.