| 摘要 |
PROBLEM TO BE SOLVED: To improve the radio wave absorbing ability of a wave absorber by making the absorber have high magnetic permeability in a high-frequency band by constituting the absorber of a mixed body of magnetic particles containing iron nitride and a coupling material. SOLUTION: A paste-like material is prepared by mixing, for example, 50-90 wt.% flat or discoid fine Fe16N2 particles manufactured through a thin film process with 50-10 wt.% coupling material composed of an epoxy resin, phenol resin, etc. Chloroprene rubber, silicone rubber, etc., can also be used as the coupling material. When the coupling material is used, a uniform diffused state is obtained, because the packing ratio is increased and the agglomeration of the particles is prevented. The thin film process includes the vacuum deposition, sputtering, CVD, molecular beam epitaxial growth, etc. When an IC module 2 is constituted, a desired conjugated material (mixed material) 4 is obtained by screen-printing the paste on a substrate 1 by using a mask and curing the paste at about 100-300 deg.C (variable depending upon the resin).
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