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Multiple readers for high resolution and SNR for high areal density application

  • US 9,230,578 B2
  • Filed: 12/23/2013
  • Issued: 01/05/2016
  • Est. Priority Date: 12/23/2013
  • Status: Active Grant
First Claim
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1. A magnetic read head, comprising:

  • a first shield layer;

    a second shield layer, wherein the second shield layer comprises a ferromagnetic material;

    a first sensor element disposed between the first shield layer and the second shield layer;

    a second sensor element, separate and distinct from the first sensor element, disposed between the first shield layer and the second shield layer;

    an insulating layer disposed on the first shield layer and on sidewalls of the first and second sensor elements; and

    a magnetic bias layer disposed on and in contact with the insulating layer, wherein the magnetic bias layer is in contact with the ferromagnetic material of the second shield layer.

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