Inductor element, inductor element manufacturing method, and semiconductor device with inductor element mounted thereon
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United States of America Patent
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Mar 20, 2018
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N/A
app pub date -
Nov 19, 2012
filing date -
Aug 1, 2006
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Abstract
An inductor element is formed in a multiple layer lead structure including a lead, an insulative layer that insulates leads above and below, and a via provided in the insulative layer and connecting leads above and below wherein lead layers are multiply laminated layers, characterized in that: at least a portion of at least a pair of vertically adjacent leads are coiled leads; the coiled leads are connected in series, wherein current directions of vertically adjacent coiled leads are the same by a via provided on an end portion thereof, and form a serial inductance; and an inter-lead capacitance of the vertically adjacent coiled leads is larger than an inter-lead capacitance between other coiled leads formed in the same lead layer.
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