MULTILAYER CERAMIC CAPACITORS AND MANUFACTURING METHOD THEREOF

• Main Author: KANEDA KAZUMI
• Format: Patent
• Language: English; Japanese
• Published: 03.09.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY

To provide a more reliable multilayer ceramic capacitor.SOLUTION: A multilayer ceramic capacitor 10 includes a laminate 20 in which a plurality of dielectric layers 17 and internal electrode layers 18 are alternately laminated, and cover layers 22 formed on both sides of the laminate 20 in the lamination direction. The cover layer 22 includes a plurality of pores 30. The plurality of pores 30 are oriented along a direction orthogonal to the stacking direction of the laminate 20. In addition, boron (B) is present in the peripheral region of the plurality of pores 30. The concentration of boron (B) decreases as the distance from the pore 30 increases.SELECTED DRAWING: Figure 2 【課題】より信頼性の高い積層セラミックコンデンサを提供する。【解決手段】積層セラミックコンデンサ１０は、複数の誘電体層１７と内部電極層１８が交互に積層された積層体２０と、積層体２０の積層方向の両側に形成されたカバー層２２と、を備える。カバー層２２は、複数のポア３０を含む。複数のポア３０は、積層体２０の積層方向に直交する方向に沿って配向している。また、複数のポア３０の周辺領域には、硼素（Ｂ）が存在する。硼素（Ｂ）の濃度は、ポア３０から離れるほど低くなっている。【選択図】図２