Common mode filter with multi spiral layer structure and method of manufacturing the same
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United States of America Patent
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Apr 14, 2015
Grant Date -
Mar 28, 2013
app pub date -
Aug 10, 2012
filing date -
Sep 23, 2011
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Abstract
A common mode filter with a multi spiral layer structure includes a first coil, a second coil, a third coil connected in series with the first coil, a fourth coil connected in series with the second coil, a first material layer and a second material layer. The second coil is disposed between the first and third coils, and the third coil is disposed between the second and fourth coils. At least one of the first and second material layers comprises magnetic material. The first, second, third, and fourth coils are disposed between the first and second material layers.
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