Patent ID: 11881839
Assignee: HANGZHOU XINGHE TECHNOLOGY CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A filter formed by an acoustic resonator assembly wherein the acoustic resonator assembly comprises at least two acoustic resonators that are vertically connected to each other,
wherein for each of the at least two acoustic resonators,
an acoustic resonator comprises: an acoustic mirror, a bottom electrode layer, a piezoelectric layer and a top electrode layer that are arranged on a substrate;
an active area of the acoustic resonator is defined by an overlapping area of the acoustic mirror, the bottom electrode layer, the piezoelectric layer and the top electrode layer; and
the acoustic resonator further comprises a support layer, the support layer is arranged on the substrate or the piezoelectric layer on a periphery of a projection of the acoustic mirror on the substrate;
wherein the at least two acoustic resonators are vertically connected to each other through the support layer; and
wherein a top electrode layer or a lead wire connected to the top electrode layer arranged on at least one side of the acoustic resonator and a top electrode layer or a lead wire connected to the top electrode layer arranged on at least one side of the other acoustic resonator corresponding to the side of the acoustic resonator extend to a middle of the two acoustic resonators, and are connected to each other to form a suspended structure.