Optimization of Properties of Planar Spiral Inductors

This paper deals with investigation of properties of planar spiral inductors realized by application of thick film process. Various implementations of the thick-film planar spiral inductors can be considered. Various film processes were used for fabrication such as screen printing, direct writing and ultrasonic wire bonding and its combinations. Some of projected patterns of the inductors were fabricated and its electrical properties were measured. The results are discussed. Generally, the background of this work was to find out the optimal thick film technique and structure of thick film planar inductor, which can be applicable to construct the thick film transformer. The considered transformer could replace the PCB solutions, in some applications.