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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Jan 5, 2016
Grant Date -
Jan 15, 2015
app pub date -
Jul 12, 2013
filing date -
Jul 12, 2013
priority date (Note) -
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Abstract
A common mode filter with a multi-spiral layer structure includes a first coil, a first insulating layer, a second coil, a second insulating layer, a third coil, a third insulating layer, and a fourth coil, wherein the first coil serially connects with the fourth coil, and the second coil serially connects with the third coil. A first conductive pillar is configured to connect the first coil and the fourth coil, and a second conductive pillar is configured to connect the second coil and the third coil, wherein the first conductive pillar and the second conductive pillar are internally diagonally disposed relatively within a corner or the same side of corners of the rectangular spiral.
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