MULTILAYER ELECTRONIC COMPONENT

• Main Authors: YOON SEOK HYUN, KIM JIN WOO, CHUN HEE SUN, LEE HYO JU, KIM TAE HYUNG, KIM JEONG RYEOL
• Format: Patent
• Language: English; Japanese
• Published: 27.06.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

To provide a multilayer electronic component with an improved dielectric constant.SOLUTION: A multilayer electronic component includes a main body including a dielectric layer 111 including a plurality of dielectric crystal grains 20 and internal electrodes 121, 122 disposed alternately with the dielectric layer in a first direction, and an external electrode disposed on the main body. At least one or more of the dielectric crystal grains include a core-shell structure including an internal core 21 and a shell 22 covering at least a part of the core. The ratio of the average size of the core to the average size of the dielectric crystal grain with the core-shell structure is 0.4 or more and 0.8 or less. The ratio ((Dy+Tb)/Sn) of the total molar number of dysprosium (Dy) and terbium (Tb) to the molar number of tin (Sn) in the dielectric layer is 0.7 or more and 1.5 or less. At least one or more of the dielectric layers include four or more dielectric crystal grains in the first direction.SELECTED DRAWING: Figure 5 【課題】誘電率が向上した積層型電子部品を提供する。【解決手段】積層型電子部品は、複数の誘電体結晶粒２０を含む誘電体層１１１及び誘電体層と第１方向に交互に配置される内部電極１２１、１２２を含む本体と、本体上に配置される外部電極とを含む。複数の誘電体結晶粒のうち少なくとも一つ以上は、内側のコア２１とコアの少なくとも一部をカバーするシェル２２とを含むコア－シェル構造を有し、上記コア－シェル構造を有する誘電体結晶粒の平均大きさに対する上記コアの平均大きさの割合は、０．４以上０．８以下であり、誘電体層に含まれたスズ（Ｓｎ）のモル数に対するジスプロシウム（Ｄｙ）のモル数とテルビウム（Ｔｂ）のモル数の合計の割合（（Ｄｙ＋Ｔｂ）／Ｓｎ）は、０．７以上１．５以下を満たし、誘電体層のうち少なくとも一つ以上は、第１方向に４個以上の誘電体結晶粒が存在する。【選択図】図５