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Integrated transformer

  • US 6,943,658 B2
  • Filed: 08/08/2003
  • Issued: 09/13/2005
  • Est. Priority Date: 11/23/1999
  • Status: Expired due to Term
First Claim
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1. A transformer comprising:

  • a substrate comprising a semiconductor material;

    a first conductor over the substrate, the first conductor defining a generally spiral-shaped signal path having at least one turn;

    a second conductor over the substrate, the second conductor defining a generally spiral-shaped signal path having at least one turn, wherein the first and second conductors are positioned side by side;

    a first magnetic layer the substrate and the conductors; and

    a second magnetic layer over the conductors, wherein the first magnetic layer and the second magnetic layer are connected.

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