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Inductive element and manufacturing method of the same

  • US 7,212,095 B2
  • Filed: 02/09/2004
  • Issued: 05/01/2007
  • Est. Priority Date: 09/30/2002
  • Status: Active Grant
First Claim
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1. An inductive element having a first direction, a second direction, and a stacking direction, said inductive element comprising:

  • a plurality of alternating individual sheets of conducting and insulating layers forming a stack wherein each conducting layer is integrally formed from a solid sheet into a U-shaped conductive layer such that every U-shaped conductive layer is located in a substantially same position along the first direction and the second direction and is located a distance from an adjacent U-shaped conductive layer along the stacking direction;

    an embedding material filled in an area between legs of the U-shaped conducting layers; and

    a bridge conductor which bridges an opening edge of the U-shaped conducting layer to an opening edge of the next U-shaped conducting layer to form a coil,wherein said U-shaped conducting layers are connected by said bridge conductor by skipping one of said U-shaped conducting layers so as to form two sets of rectangular helical coils.

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