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Magnetic core, inductor, and method for fabricating the magnetic core

  • US 9,893,141 B2
  • Filed: 02/26/2015
  • Issued: 02/13/2018
  • Est. Priority Date: 02/26/2015
  • Status: Active Grant
First Claim
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1. A semiconductor device, comprising:

  • a semiconductor substrate; and

    a magnetic core over the semiconductor substrate, the magnetic core comprising;

    a center section having a substantially uniform thickness; and

    an edge section connected to and surrounding the center section, the edge section comprising a bottom portion and a top portion disposed on the bottom portion, wherein the bottom portion has an inclined side surface, and the top portion has a curve side surface.

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