Fabrication of microinductor using Nanocrystalline NiCuZn ferrites

The nanocrystalline Ni_0.53Cu_0.12Zn_0.35Fe₂O₄ was prepared using microwave hydrothermal (M-H) method at a low temperature of 160 °C/30 min. As synthesized powders were characterized using XRD and TEM. The powders were sintered using microwave sintering methods at different sintering temperatures i.e. 750 °C/30 min, 800 °C/30 min, 850 °C/30 min 900 °C/30 min and 950 °C/30 min respectively. The sintered samples were characterized using XRD and SEM. The complex permittivity (ε*) and permeability (μ*) have been measured in the frequency range of 100 kHz to 1.8 GHz. The micro inductors were fabricated with the help of microwave sintered sample by using screen-printing method and co-firing. The electrical properties such as inductance and Quality factor of the prepared inductors were measured over a wide frequency range.