I can\'t seem to find what uses or contains Aluminum Nitride. Help!Don\'t know where you looked, but this came up with very basic web search. Metallization methods are available to allow Aluminium nitride to be used in electronics applications similar to those of alumina and beryllium oxide. Among the applications of Aluminium nitride are opto-electronics, dielectric layers in optical storage media, electronic substrates, chip carriers where high thermal conductivity is essential, military applications, as a crucible to grow crystals of gallium arsenide, steel and semiconductor manufacturing. Epitaxially grown thin film crystalline aluminium nitride is also used for surface acoustic wave sensors (SAW\'s) deposited on silicon wafers because of the Aluminium nitride\'s piezoelectric properties. One application is an RF filter used in mobile phones called a thin film bulk acoustic resonator (FBAR). This is a MEMS device that uses aluminium nitride sandwiched between two metal layers.Other related question