Analysis, identification and minimization the parasitic effects of the multilayer spiral inductors

The continuous development of electrical/ electronics/industrial/medical devices which contain inductors leads to increasingly needing the use of the spiral inductors with as higher inductivity as possible, but using implementation spaces as small as possible in the integrated circuit, through dimensions as small as possible of their components (inductors). Thus, in this paper it is proposed to solve this need by creating multilayer spiral inductors in order to obtain a higher inductance in an implementation area as small as possible. Transitioning from the monolayer spiral inductors, to their achievement in multiple layers, leads to increased inductivity, but the parasitic effects that influence the functioning of inductors to maximum performance are also increasing. Therefore, it is necessary to determine some solutions to minimize the parasitic effects which do not influence the inductivity value, ensuring that it is maintained at a value as high as possible. In this case, the authors of this paper propose some solutions to minimize these parasitic effects.