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Contact recording tunnel magnetoresistive sensor with layer of refractory metal

  • US 8,988,835 B1
  • Filed: 10/14/2013
  • Issued: 03/24/2015
  • Est. Priority Date: 10/14/2013
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • an array of sensors sharing a common media-facing surface, each sensor having an active tunnel magnetoresistive region, magnetic shields flanking the tunnel magnetoresistive region, and gaps between the active tunnel magnetoresistive region and the magnetic shields,wherein the active tunnel magnetoresistive region includes a free layer, a tunnel barrier layer and a reference layer,wherein at least one of the gaps includes an electrically conductive layer having a refractory material.

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