公开(公告)号：US20240333258A1

公开(公告)日：2024-10-03

申请号：US18616039

申请日：2024-03-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Luke MYERS ,  Wei YANG ,  Greg DYER

IPC: H03H9/56 ,  H03H9/02 ,  H05K1/02 ,  H05K1/16

CPC classification number: H03H9/568 ,  H03H9/02228 ,  H05K1/0233 ,  H05K1/165 ,  H05K2201/10098

Abstract: A filter is provided that a piezoelectric layer, an interdigital transducers (IDT) having interleaved fingers at the piezoelectric layer, contact pads at the piezoelectric layer and electrically coupled to the IDT, and a printed circuit board (PCB). The PCB includes a plurality of layers including at least one layer that includes a first portion and a second portion that is physically separate from the first portion with a gap therebetween. Moreover, a plurality of electrical contacts are provided on a top layer of the plurality of layers that is facing the piezoelectric layer, with the plurality of electrical contacts electrically coupled to the plurality of contact pads, respectively.