×

Antiparallel-pinned type spin valve sensor having ultra-thin freelayers

  • US 20030189800A1
  • Filed: 04/03/2002
  • Published: 10/09/2003
  • Est. Priority Date: 04/03/2002
  • Status: Active Grant
First Claim
Patent Images

1. A spin valve (SV) sensor, comprising:

  • a cap layer made of tantalum (Ta);

    a copper (Cu) layer formed beneath the cap layer;

    a freelayer structure which includes;

    a first layer made of nickel-iron (NiFe);

    a second layer made of ruthenium (Ru);

    a third layer made of nickel-iron (NiFe);

    a nanolayer made of cobalt-iron (CoFe); and

    a spacer layer made of copper (Cu).

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×