Patent ID: 6683763
Filing Date: 2004-01-27
Classification: B82Y,G01R,G11B,H01F,H01L

Abstract:
A tunneling magnetoresistive element comprising:a tunneling magnetoresistive layer including a first magnetic layer, a second magnetic layer and a first insulating layer disposed between the first magnetic layer and the second magnetic layer; a first material for providing electrical contact to the tunneling magnetoresistive layer, the first material being disposed above the tunneling magnetoresistive layer, the first material being undercut with respect to a second insulation layer by an plasma etch without exposing a portion of the tunneling magnetoresistive layer under a remaining portion of the first material, the second insulation layer being a photoresist; the second insulation layer covering a portion of the tunneling magnetoresistive layer and a portion of the first material.