Bulk Acoustic Wave Technology

BAW - Macom Technology Solutions Holdings Inc. (M/A-COM Tech)

MACOM’s BAW product portfolio is ideal for high performance Industrial, Aerospace, Defense, and Communications applications that require critical frequency filtering. Our high-performance RF filters enable our customers manage signal integrity in the 1 to 6 GHz frequency range. Bulk Acoustic Wave Resonators consist of two metal electrodes above and below a layer of a piezoelectric material.  The piezoelectric material converts an electrical signal to a mechanical signal and vice versa.  The metal electrodes provide the connections to/from the piezo material.  The frequency at which resonance occurs depends on the thickness of the combined metal-piezo-metal stack.  Advances in thin-film piezoelectric fabrication have enabled BAW resonators to meet RF filtering challenges up to 6000 MHz using standard MEMS fabrication process.  High-performance BAW resonators-based RF filters are made of piezoelectric material having high Q-factor (>3000) and high coupling coefficient. Currently, no competitive technology provides the same high performance for RF filter applications when compared to BAW resonator-based RF filter up to 6000 MHz for the same size and cost.