Title | 2E - Fundamental Principles of Bulk-Acoustic-Wave Resonator Acoustics |
Instructor | Robert Thalhammer, Avago Technologies, a Broadcom Ltd company, Munich, Germany |
Overview of topics covered |
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Time | Monday, October 22 14:00pm-18:00pm |
Room | Sapphire |
Abstract | This short course introduces to the fundamental principles of bulk-acoustic-wave resonator acoustics. It covers the basics of structural mechanics and piezo-electricity from the perspective of coupling the physical domains of elasticity and electrostatics. The governing equations have two important fundamental solutions: longitudinal and shear waves. We are going to discuss their properties and the associated material parameters, together with their dependence on temperature. For analyzing lateral waves in multiple dimensions, the concept of plate dispersion turned out to be a powerful technique. After introducing its basic principles, it will be applied to the investigation of spurious modes in piezoelectric resonators. Structural concepts for spurious mode suppression will be discussed for different types of resonator designs. |
Short CV of Instructor | ![]() |