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A new type thin film inductor with Fe-based nanocrystalline core is proposed and invatigated the characteristics of the inductor with frequency. It is used dry and wet process for fabricating the inductor, In order to improve mutual inductance in the center of the inductor, current direction is set opposite in each coil. The inductance of the simulated and the fabricated inductor are 1170 nH and 800 nH at 1 MHz, respectively. The difference of the .value is considered that it caused strip line broadening and local demagnetization field.