公开(公告)号：US12255620B2

公开(公告)日：2025-03-18

申请号：US17953380

申请日：2022-09-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Toru Yamaji

IPC: H03H9/25 ,  H01L23/10 ,  H01L23/31 ,  H03H9/02 ,  H03H9/05 ,  H03H9/10

Abstract: An electronic component includes a mounting substrate, and first and second devices each including a functional element. The first device is spaced apart from and faces the mounting substrate. The second device is located on the mounting substrate and faces the first device. A functional element of the first device is located on a first surface facing the second device, in the first device. A functional element of the second device is located on a second surface facing the first device, in the second device.

公开(公告)号：US11870418B2

公开(公告)日：2024-01-09

申请号：US17161723

申请日：2021-01-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Toru Yamaji ,  Tetsu Takahashi

IPC: H03H9/02 ,  H03H9/25 ,  H03H9/64 ,  H03H9/145

CPC classification number: H03H9/02543 ,  H03H9/02842 ,  H03H9/145 ,  H03H9/25 ,  H03H9/6406

Abstract: An acoustic wave device includes first and second acoustic wave elements. The first acoustic wave element is disposed on a piezoelectric substrate, and includes at least one first IDT electrode. The second acoustic wave element is disposed on the piezoelectric substrate, and includes at least one second IDT electrode. The first and second acoustic wave elements are adjacent to each other in the direction of acoustic wave propagation. A diffracting component that diffracts an acoustic wave is disposed between the first IDT electrode and the second IDT electrode. The diffracting component includes a gap that defines and functions as a slit to diffract an acoustic wave.

公开(公告)号：US20250055439A1

公开(公告)日：2025-02-13

申请号：US18792761

申请日：2024-08-02

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Bryant GARCIA ,  Tetsuya Kimura ,  Toru Yamaji

IPC: H03H9/17 ,  H03H9/02 ,  H03H9/56

Abstract: An acoustic resonator is provided that included a substrate; a piezoelectric layer supported by the substrate; and an interdigital transducer (IDT) on a surface of the piezoelectric layer that faces the substrate, with the IDT including a plurality of interleaved fingers. Moreover, the acoustic resonator includes an acoustic reflector, such as a Bragg reflector, disposed between the substrate and the piezoelectric layer. The acoustic reflector includes acoustic impedance layers with one or more layers having a shape that conforms to the interleaved fingers disposed on the surface of the piezoelectric layer.

公开(公告)号：US11984924B2

公开(公告)日：2024-05-14

申请号：US16711898

申请日：2019-12-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Seima Kondo ,  Satoshi Tanaka ,  Satoshi Arayashiki ,  Hiroyuki Furusato ,  Jin Yokoyama ,  Toru Yamaji ,  Akio Kaneda ,  Kiwamu Sakano ,  Junichi Yoshioka ,  Tatsuya Tsujiguchi ,  Atushi Ono

IPC: H04B1/48 ,  H03F3/21 ,  H05K1/02

CPC classification number: H04B1/48 ,  H03F3/21 ,  H05K1/0243 ,  H03F2200/294 ,  H03F2200/451 ,  H05K2201/10098

Abstract: A transmit/receive module includes plural duplexers, a power amplifier, and a sending transmission line. The plural duplexers operate in bands different from each other and each includes a transmit filter and a receive filter. The power amplifier amplifies signals of pass bands of the plural transmit filters and outputs the amplified signals. The sending transmission line is connected to the plural transmit filters. The signals of the pass bands of the plural transmit filters output from the power amplifier are transmitted through the sending transmission line.

公开(公告)号：US11863161B2

公开(公告)日：2024-01-02

申请号：US17108039

申请日：2020-12-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tetsu Takahashi ,  Toru Yamaji ,  Takuma Kuzushita

IPC: H03H9/02 ,  H03H9/25 ,  H03H9/64 ,  H03H9/145

CPC classification number: H03H9/6483 ,  H03H9/02543 ,  H03H9/145 ,  H03H9/25

Abstract: An acoustic wave filter includes a first resonance circuit including a first series arm resonator and a first capacitive element. The first series arm resonator is provided on a path connecting a first terminal and a second terminal. The first capacitive element is coupled in parallel with the first series arm resonator. The first series arm resonator includes a first divided resonator and a second divided resonator coupled in series with each other. The first resonance circuit includes a second resonance circuit including the first divided resonator and a second capacitive element coupled in parallel with the first divided resonator.