| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost sheeted material for preventing electromagnetic interference which meets the demands of public in the effects of sufficiently shielding electromagnetic waves, in particular, magnetic field waves in a frequency domain of lower than 10MHz, and ensures shielding effects in a comparatively low frequency band attained not only by reflecting but also by absorbing electromagnetic waves. <P>SOLUTION: The sheeted material for preventing electromagnetic interference is provided, in which at least one layer (layer A) of a soft magnetic metal film comprising microcrystal whose particle size is less than 100nm as observed by a transmission microscope, is formed by wet plating. A metal film layer (layer B) of better conductivity than that of the soft magnetic film is formed above or (and) below the layer A by wet plating to obtain a layer structure of two or more layers. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
