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MAGNETIC SHIELDING FOR REDUCING MAGNETIC INTERFERENCE

  • US 20040043516A1
  • Filed: 08/30/2002
  • Published: 03/04/2004
  • Est. Priority Date: 08/30/2002
  • Status: Active Grant
First Claim
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1. A method for manufacturing a magnetic shield in a non-volatile memory array, said memory array comprising a plurality of magnetic memory cells, each of said magnetic memory cells including a data layer and a reference layer, wherein a value stored in said data layer is determinable by measuring a relative orientation of the magnetic moments of said data layer and said reference layer, at least one of said magnetic memory cells during operation emanating fringe magnetic fields potentially influencing a nearly magnetic memory cell, said method comprising:

  • (a) forming a magnetic shielding adjacent to at least one of said magnetic memory cells to reduce magnetic interference with respect to another of said magnetic memory cells; and

    (b) forming an insulator separating at least a portion of said magnetic shielding from said at least one magnetic memory cell.

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