Articles
  • The effect of ag-epoxy electrodes on the thermal and mechanical properties of multilayer ceramic capacitor

  • Chang Ho Lee and Jung Rag Yoon*

  • R&D Center, Samwha Capacitor, Yong-In, Korea

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The demand for reliable multilayer ceramic capacitors has significantly increased in automobile, aerospace, and 5G network industries. Therefore, the utilization of Ag-epoxy electrodes for the development of highly reliable MLCCs has become essential. In this study, the changes in mechanical and thermal stress caused due to the utilization of Ag-epoxy electrodes were analyzed using 3D finite element analysis. Subsequently, the reliability of the MLCC was evaluated using the board flex, thermal shock, and temperature-humidity-bias test. A comparison between the simulation results was performed and it was observed the bending resistance of the soft termination type multilayer ceramic capacitor with Ag-epoxy electrode was increased. Additionally, solder deterioration due to thermal shock was prevented, and it had excellent moisture resistance


Keywords: Multilayer ceramic capacitor, Finite element analysis, Soft termination, High reliability

This Article

  • 2022; 23(2): 181-187

    Published on Apr 30, 2022

  • 10.36410/jcpr.2022.23.2.181
  • Received on Sep 16, 2021
  • Revised on Nov 23, 2021
  • Accepted on Nov 29, 2021

Correspondence to

  • Jung Rag Yoon

  • R&D Center, Samwha Capacitor, Yong-In, Korea
    Tel : +82 31-330-5765 Fax: +82 31-332-7661

  • E-mail: yoonjungrag@samwha.com