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Multi-layered inductance element

  • US 6,657,530 B2
  • Filed: 06/06/2002
  • Issued: 12/02/2003
  • Est. Priority Date: 12/14/2001
  • Status: Expired due to Fees
First Claim
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1. A multi-layered inductance element comprising:

  • at least one dielectric substrate having a first and second surfaces;

    a first conductor line pattern including a plurality of first conductor line segments being apart from each other and disposed on the first surface of the dielectric substrate, wherein the first conductor line segments exhibit a substantially looped configuration as a whole if adjacent first conductor line segments are connected with each other;

    a second conductor line pattern including a plurality of second conductor line segments being apart from each other and disposed on the second surface of the dielectric substrate, wherein the second conductor line segments exhibit a substantially looped configuration as a whole if adjacent second conductor line segments are connected with each other; and

    a plurality of through-holes penetrating through the dielectric substrate, each through-hole electrically connecting one end of one of the first conductor line segments and one end of one of the second conductor line segments, wherein each of the first conductor line segments extends over at least a part of one of the second conductor line segments, the plurality of first conductor line segments being connected with the plurality of second conductor line segments via the through-holes, thereby forming a spiral conductor line in which a direction of current flow in the first conductor line pattern is the same as that in the second conductor line pattern, and wherein each of the second conductor line segments includes a pair of end parts and a halfway part having a width which is smaller than that of the end parts, the end parts being connected to adjacent first conductor line segments via the through-holes.

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