Back to results
US 8,081,403 B1Granted
Magnetic element having a smaller critical dimension of the free layer
AssigneeWestern Digital (Fremont), LLC
InventorsBenjamin Chen, Hongping Yuan, Danning Yang, Wei Zhang, Hugh C. Hiner, Lei Wang, Yingjian Chen, Brant Nease
Life of this patent
Estimating the term…
Abstract
A magnetic element includes a pinned layer, a nonferromagnetic spacer layer, and a free layer. The nonferromagnetic spacer layer resides between the pinned layer and the free layer. The free layer has a track width of not more than 0.08 micron.
Claims11
A magnetic element comprising:
- a pinned layer;
- a nonferromagnetic spacer layer;
- a free layer, the nonferromagnetic spacer layer positioned between the pinned layer and the free layer, the free layer configured to have a track width of not more than 0.08 micron;
- a stop layer on the free layer;
- and
- a dielectric antireflective coating (DARC) layer on the stop layer.
3 more elements
A transducer comprising:
- a magnetic element having a pinned layer, a free layer, and a nonferromagnetic spacer layer residing between the free layer and the pinned layer, the free layer having a track width of not more than 0.08 micron;
- a dielectric antireflective coating (DARC) layer on a portion of the magnetic element;
- an insulating layer on a portion of the DARC layer;
- a ferromagnetic bias layer on at least a portion of the insulating layer;
- and
- a filler layer on at least a portion of the ferromagnetic bias layer.
3 more elements
Dependencies are inferred from the claim text.