Electromagnetic Behavior of Inductive Planar Structures with Non-Homogenous Magnetic Environment

Recently, more and more applications have used planar inductors not only on silicon substrate but also on ceramic or polymer substrates (rigid or flex). Inductors integrated in today´s silicon process could not fulfil the requirements for performance of modern communication equipments. Sometimes for system in package applications high quality inductors and other passive components are placed outside from chip and are realized using organic or non-organic substrate. This paper presents the results of investigation on the planar inductor as electrical performance (inductance, quality factor, self resonance frequency), according with manufacturing technology and substrate (organic or non organic) shape (square or spiral) number of layers (single or double layer). The influence of a magnetic material and it´s influence on overall parameters of the inductor will also be analyzed