公开(公告)号：US20230317375A1

公开(公告)日：2023-10-05

申请号：US18124606

申请日：2023-03-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuichiro MORIMOTO ,  Toshiyuki NAKAMURA ,  Noriyuki OOKAWA ,  Daisho TSUBOKAWA ,  Masaru TAKAHASHI ,  Nobuyasu HAMAMORI

IPC: H01G4/232 ,  H01G4/30 ,  H01G4/012 ,  H01G4/008 ,  H01G4/12 ,  H01G2/06

CPC classification number: H01G4/2325 ,  H01G4/30 ,  H01G4/012 ,  H01G4/008 ,  H01G4/12 ,  H01G2/065

Abstract: In a three-terminal multilayer ceramic capacitor, each of first through fourth external electrodes includes a base electrode layer including a conductive metal and a glass component, an organic layer including an organosilicon compound covering the base electrode layer, and a plating layer on the organic layer. On a surface of the organic layer in a portion facing the plating layer, an atomic concentration ratio of Si to Cu is greater than or equal to about 1.5% and less than or equal to about 5.5%, or greater than or equal to about 0.8% and less than or equal to about 2.8%, and a surface roughness is greater than or equal to about 0.334 and less than or equal to about 0.371, or greater than or equal to about 0.352 and less than or equal to about 0.395.

公开(公告)号：US20250118461A1

公开(公告)日：2025-04-10

申请号：US18983399

申请日：2024-12-17

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Daisho TSUBOKAWA ,  Tomoya OOSHIMA ,  Yuuta HOSHINO

IPC: H01C1/034 ,  C03C1/00 ,  H01C1/142 ,  H01C7/04 ,  H01C17/02 ,  H01C17/28

Abstract: An electronic component includes a base body including a plurality of voids, a protective material covering a part or a whole of an outer surface of the base body, and an external electrode covering a part of an outer surface of the protective material. The protective material is glass containing a silane compound having a carbon chain with 3 or more carbon atoms. The protective material includes a filling portion occupying at least some of the voids, and a film portion covering the outer surface of the base body.