National Taipei University of Technology

Jue-Wei Weng

Chun-Wei Chang

Sea-Fue Wang

Yuan-Cheng Lai

Jian-Hua Li

A ceramic capacitor dielectric material includes BaTiO, BaZrO, SrTiO, MgCO, SiO, and at least one compound selected from transition element and rare earth element. The amount of the BaTiOin the ceramic capacitor dielectric material is 40-80 mol %; the amount of the BaZrOis 20-40 mol %; and the amount of the SrTiOis smaller than or equal to 20 mol %. The permittivity of the ceramic capacitor dielectric material is larger than 350, and the dielectric loss is lower than 0.5%. Moreover, the resistivity can reach 10&#x3a9;-cm under room temperature, and further reach 10&#x3a9;-cm at 125&#xb0; C. Besides that, the performance of the capacitance change rate of the ceramic capacitor dielectric material under DC bias is excellent, thus the ceramic capacitor dielectric material can fulfill the X7T dielectric properties of EIA.

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Jue-Wei Weng