COMMON MODE FILTER AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Feb 3, 2011
app pub date -
Mar 18, 2010
filing date -
Aug 3, 2009
priority date (Note) -
Abandoned
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Abstract
A common mode filter comprises an insulating substrate, a lower coil leading layer, a coil main body multilayer, and an upper coil leading layer. The upper coil leading layer comprises at least one upper lead, at least one upper terminal, and at least one upper contact, and the lower coil leading layer comprises at least one lower lead, at least one lower terminal, and at least one lower contact. The two ends of the upper lead are respectively connected to the upper terminal and the upper contact, and the upper lead surrounds the upper contact. The two ends of the lower lead are respectively connected to the lower terminal and the lower contact, and the lower lead surrounds the lower contact. The upper coil leading layer and the lower coil leading layer sandwich the coil main body multi-layer, and the lower coil leading layer is disposed on the insulating substrate.
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