Skin Effect Suppression in Multilayer Thin-Film Spiral Inductor Taking Advantage of Negative Permeability of Magnetic Film 

Mr. Noriyuki Sato

Tohoku University, Japan 

Click Here to see the Flyer.

Date: Thursday 9th December 2010 

Time: 14:00 - 15:00,

Location: Room G41 - Sackville Street Building.

Abstract  

Our research is about the skin effect suppression method using negative permeability of metal/ferromagnetic multilayer. This is the first experiment of using the method on spiral inductors. Coplanar lines and spiral inductors consisting of Cu/CoZrNb multilayer are fabricated, and their high frequency resistances were measured. The resistance decreases at the frequency of around 5 GHz and it is due to the skin effect suppression. This result reveals that a thin film inductor can be improved with the method of skin effect suppression. 

Biography 

Noriyuki Sato, Department of Electrical and Communication Engineering,  Graduate School of Engineering, Tohoku University, Japan. 
(Currently I belong to "Institute for Materials, Ruhr-University Bochum, Germany" as an exchange student.).

~~~~~~~~~~~~~~~ 

Seminar Photographs: