Multilayer ceramic capacitor
The multilayer ceramic capacitor design addresses the challenge of high ESL by utilizing curved internal electrodes to minimize the distance between the electrodes and the mounting surface, resulting in reduced ESL and improved performance in high-frequency applications.
WO2025057516A1 Publication Date: 2025-03-20MURATA MFG CO LTD
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Patent Information
- Application Number
- PCT/JP2024/022043
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-14
- Filing Date
- 2024-06-18
- Publication Date
- 2025-03-20
AI Technical Summary
Technical Problem
The existing multilayer ceramic capacitors face challenges in reducing equivalent series inductance (ESL) due to increased ESL when the distance between internal electrodes and the mounting surface becomes longer.
Method used
The multilayer ceramic capacitor design includes a plurality of laminated dielectric layers with internal electrodes arranged in a specific configuration, featuring curved end and side surface internal electrodes to minimize the distance between the electrodes and the mounting surface, thereby reducing ESL.
Benefits of technology
This design effectively reduces ESL by shortening the current path between the internal electrodes and the mounting surface, particularly in high-frequency applications.
✦ Generated by Eureka AI based on patent content.
Abstract
Provided is a multilayer ceramic capacitor that can reduce ESL. A multilayer ceramic capacitor 1 includes: end surface internal electrodes 20 that are exposed at both end surfaces C of a layered body 2; and side surface internal electrodes 50 that are exposed at both side surfaces B. The multilayer ceramic capacitor 1 is configured such that when a straight line that passes through a center part in the length direction L of the layered body 2 and a center part in the width direction W of the layered body 2 and extends parallel to the layering direction T is a reference line SL, the end surface internal electrode 20 that is closest to a first principal surface AA is a first outermost end surface internal electrode 20A, the distance along the reference line SL between the first outermost end surface internal electrode 20A and the first principal surface AA is a1, and the distance along a first end surface CA between one end part in the width direction W of the first outermost end surface internal electrode 20A and the first principal surface AA is b1, b1<a1.
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