Knobbe, Martens, Olson & Bear, LLP
Bulk acoustic wave device with floating raised frame
Aspects of this disclosure relate to a bulk acoustic wave device with a floating raised frame structure. The bulk acoustic wave device includes a first electrode, a second electrode, a piezoelectric layer positioned between the first electrode and the second electrode, and a floating raised frame structure positioned on a same side of the piezoelectric layer as the first electrode and spaced apart from the first electrode. The floating raised frame structure is at a floating potential. The bulk acoustic wave device can suppress a raised frame mode. Related methods, filters, multiplexers, radio frequency front ends, radio frequency modules, and wireless communication devices are disclosed.
Skyworks Global Pte. Ltd.
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Kwang Jae Yuhao Chun Sing Jiansong
Shin Liu Lam Liu