Articles
  • Non-linear behavior of multilayer ceramic capacitors with a new equivalent circuit under AC-fields 
  • Hyeon-Pyo Jeona,b, Eun-Sang Nab, Sang-Woo Kimc and Duck-Kyun Choia,*
  • a Dept. of Materials Science and Engineering, Hanyang University, Seoul 133-791, Korea b Chip Product R&D Group, Samsung Electro-mechanics Co. Ltd., 314, Meatan-3Dong, Youngtong-Gu, Suwon, Kyunggi-Do, 442-743, Korea c Center for Energy-Materials Research Center, Korea Institute of Science and Technology, 39-1 Haweoulgog-dong, Sungbuk-gu, Seoul 136-791, Korea
Abstract
The electrical properties were investigated to understand better the non-linear behavior of multilayer ceramic capacitors (MLCCs). The electrical properties of the capacitors with a new equivalent circuit were simulated by a Sawyer-Tower circuit system under a high AC-field using B-2 spice software, the simulated results were then compared with the experimental results. The experimental Q-V curves showed the non-linearity of ferroelectricity in the applied AC-fields. The predicted Q-V curves using B-2 spice software under various AC-fields also showed the non-linearity of ferroelectricity in high AC-fields. As a result, the nonlinear dielectricity of the MLCCs was successfully simulated by the new circuit model.

Keywords: multilayer ceramic capacitor; non-linearity; Sawyer-Tower circuit; B-2 spice software

This Article

  • 2007; 8(4): 229-232

    Published on Aug 31, 2007