CPC H05K 9/0075 (2013.01) [H01F 27/36 (2013.01); H01F 27/366 (2020.08); H05K 9/0088 (2013.01)] | 12 Claims |
1. A method for manufacturing a shielding film, comprising the following steps:
providing a band of an amorphous soft magnetic alloy;
wrapping the band into a coil on a substrate;
thermally treating the band in the form of the coil at a temperature of 500° C. to 600° C. for 1 minute to 1 hour under an N2— or H2-containing atmosphere and under the Earth's magnetic field, thereby creating a nanocrystalline soft magnetic band with a round hysteresis loop;
applying an adhesive layer to at least one side of the nanocrystalline soft magnetic band by a reel-to-reel process; and
wherein the band is structured by breaking after applying the adhesive layer.
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