Patent ID: 6635819
Filing Date: 2003-10-21
Classification: B82Y,H01F,H01L,H05K,Y10T

Abstract:
An electronic component comprising an electronic circuit or a circuit element in a metallic case provided with a magnetic thin film made of a magnetic loss material, wherein the magnetic loss material has a composition represented by M-Xâ€”Y, wherein M denotes at least one of Fe, Co and Ni, X denotes at least one of elements other than M and Y, and Y denotes at least one of F, N, and O, and is a narrow band magnetic loss material such that the maximum value &mgr;â€³max of an imaginary part &mgr;â€³ exists in a frequency range of 100 MHz to 10 GHz in complex permeability characteristics and that a relative bandwidth bwr is not greater than 200% where the relative bandwidth bwr is obtained by extracting a frequency bandwidth between two frequencies at which the value of &mgr;â€³ is 50% of the maximum &mgr;â€³max and normalizing the frequency bandwidth at the center frequency thereof.