Keramik-Vielschichtkondensator mit Dielektrischen Schichten auf der Basis von Yttriumhaltigen Kern-Schalen-Körnern

Details

Veröffentlichungs-Nr.

EP4451299

Aktenzeichen

EP24156710

Anmeldetag

9. Februar 2024

Veröffentlichung

26. Februar 2025

Rechtsraum

EP

IPC

H01G4/06H01G4/10H01G4/12H01G4/30

Abstract

A multilayer ceramic capacitor (100) comprising a body (110) including a dielectric layer (111) and internal electrodes (121, 122) disposed alternately with the dielectric layer (111) interposed therebetween; and external electrodes (131, 132) disposed on the body (110), wherein the dielectric layer (111) includes a main component containing calcium (Ca), strontium (Sr), zirconium (Zr) and titanium (Ti) and a sub-component containing manganese (Mn), yttrium (Y) and silicon (Si), wherein the dielectric layer (111) includes a plurality of dielectric grains(20) and grain boundaries (30) disposed between adjacent dielectric grains (20), and at least a portion of the plurality of dielectric grains (20) has a core-shell structure, and wherein, when, in the core-shell structure, a content of yttrium (Y) included in a core relative to 100 moles of zirconium (Zr) included in the core (21) and a shell (22) is defined as Yc, and a content of yttrium (Y) included in the shell (22) relative to 100 moles of zirconium (Zr) included in the core (21) and the shell (22) is defined as Ys, the ratio Ys/Yc > 9 is satisfied.

Anmelder

Firma

Samsung Electro-Mechanics Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete