公开(公告)号：US20240364307A1

公开(公告)日：2024-10-31

申请号：US18766887

申请日：2024-07-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takashi IWAMOTO ,  Motoji TSUDA ,  Hiroshi SOMADA ,  Eiji FUJIMORI ,  Masaki KASAI ,  Takuma KUROYANAGI ,  Shinichiro TAKAYANAGI

IPC: H03H9/54 ,  H03H9/13 ,  H03H9/17

CPC classification number: H03H9/54 ,  H03H9/133 ,  H03H9/176

Abstract: A duplexer includes a piezoelectric substrate including an upper surface and a lower surface, a functional element on the lower surface, a flat plate electrode on a side of the upper surface of the piezoelectric substrate, and a dielectric portion that is located between the functional element and the flat plate electrode and has a permittivity lower than a permittivity of the piezoelectric substrate.

公开(公告)号：US20250055176A1

公开(公告)日：2025-02-13

申请号：US18930062

申请日：2024-10-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yoshinori YAMAWAKI ,  Noboru KATO ,  Ryosuke WASHIDA ,  Yoichi SAITO ,  Masaki KASAI

IPC: H01Q1/22 ,  H01Q1/02 ,  H01Q9/06

Abstract: An electronic component module includes a first substrate, a coupling electrode and a second substrate. The coupling electrode is provided on a first surface of the first substrate, the coupling electrode is configured to be electromagnetically coupled with a conductor pattern on an antenna member. The second substrate is provided on the first surface of the first substrate, the second substrate covers the coupling electrode. A first thermal resistance between the coupling electrode and the second substrate is smaller than a second thermal resistance between the coupling electrode and the first substrate.