Multilayer ceramic capacitor
JPWO2025126293A1Pending Publication Date: 2025-06-19
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Patent Information
- Application Number
- JP2025562917
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Filing Date
- 2023-12-11
- Publication Date
- 2025-06-19
AI Technical Summary
Technical Problem
Conventional multilayer ceramic capacitors suffer from insufficient Mn solid solution in dielectric particles, leading to Mn segregation at grain boundaries, which decreases the insulation property and reliability of the capacitor.
Method used
The multilayer ceramic capacitor incorporates dielectric particles with an atomic ratio of Mn to Zr between 0.60 and 0.80, ensuring adequate Mn solid solution within the particles and reducing Mn segregation at grain boundaries.
Benefits of technology
This configuration enhances the insulation of the entire dielectric layer and improves the reliability of the multilayer ceramic capacitor by maintaining the Mn solid solution and reducing segregation.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided is a multilayer ceramic capacitor in which the insulation properties of the entire dielectric layer are increased and for which the reliability of the multilayer ceramic capacitor can be improved.This multilayer ceramic capacitor comprises: a laminate that includes a plurality of laminated dielectric layers and that has a first main surface and a second main surface which face each other in the lamination direction of the plurality of dielectric layers, a first lateral surface and a second lateral surface which face each other in the width direction orthogonal to the lamination direction, and a first end surface and a second end surface which face each other in the length direction orthogonal to the lamination direction and the width direction; a first external electrode that has a first internal electrode layer disposed above the plurality of dielectric layers and exposed to the first end surface, a second internal electrode layer disposed above the plurality of dielectric layers and exposed to the second end surface, a substrate electrode layer disposed above the first end surface, and a plating layer disposed above the substrate electrode layer; and a second external electrode that has a substrate electrode layer disposed above the second end surface, and a plating layer disposed above the substrate electrode layer. Dielectric particles are disposed in the dielectric layers. The dielectric particles include Mn and Zr, and in the dielectric particles, the atomic ratio (Mn / Zr) of Mn to Zr is 0.60 to 0.80.
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