公开(公告)号：US20240076552A9

公开(公告)日：2024-03-07

申请号：US18193703

申请日：2023-03-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takeshi EDA ,  Fumiko IKEDA ,  Yutaka MIZUNO ,  Taichi FURUKAWA

IPC: C09K19/38 ,  C08J5/18 ,  H05K1/02 ,  H05K1/03

CPC classification number: C09K19/3809 ,  C08J5/18 ,  H05K1/0298 ,  H05K1/032 ,  C08J2367/02 ,  H05K2201/0141

Abstract: A liquid crystal polymer film that includes: a benzene ring; a naphthalene ring; and a carboxymethyl group, wherein, in a 13C-NMR spectrum of a liquid crystal polymer film decomposed with supercritical methanol, an integral value CA of a peak derived from the benzene ring, an integral value CB of a peak derived from the naphthalene ring, and an integral value CC of a peak derived from the carboxymethyl group satisfy (CA+CB)/CC of 1.35 to 1.65.

公开(公告)号：US20230262876A1

公开(公告)日：2023-08-17

申请号：US18193696

申请日：2023-03-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Mineto MITSUHASHI ,  Takeshi EDA ,  Taichi FURUKAWA

IPC: H05K1/02

CPC classification number: H05K1/024 ,  H05K2201/0141 ,  H05K2201/0129

Abstract: A laminate structure that includes: a resin film containing a thermoplastic resin and having a plurality of voids; and a conductor layer adjacent to a main surface of the resin film, wherein a first set of voids of the plurality of voids are localized between a first position proximal to an end surface of the resin film facing the conductor layer and a second position distant from the first position by one-third of the thickness of the resin film in a lamination direction of the resin film and the conductor layer such that the first set of voids between the first position and the second position are greater in number than a second set of voids between the second position and a third position distant from the second position by one-third of the thickness of the resin film in a direction away from the first position in the lamination direction.

公开(公告)号：US20230235229A1

公开(公告)日：2023-07-27

申请号：US18193703

申请日：2023-03-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takeshi EDA ,  Fumiko IKEDA ,  Yutaka MIZUNO ,  Taichi FURUKAWA

IPC: C09K19/38 ,  C08J5/18 ,  H05K1/03 ,  H05K1/02

CPC classification number: C09K19/3809 ,  C08J5/18 ,  H05K1/032 ,  H05K1/0298 ,  C08J2367/02 ,  H05K2201/0141

Abstract: A liquid crystal polymer film that includes: a benzene ring; a naphthalene ring; and a carboxymethyl group, wherein, in a 13C-NMR spectrum of a liquid crystal polymer film decomposed with supercritical methanol, an integral value CA of a peak derived from the benzene ring, an integral value CB of a peak derived from the naphthalene ring, and an integral value CC of a peak derived from the carboxymethyl group satisfy (CA+CB)/CC of 1.35 to 1.65.