Patent ID: 6430015
Filing Date: 2002-08-06
Classification: B82Y,G11B

Abstract:
A device for a longitudinally magnetically biased dual stripe magnetoresistive (DSMR) sensor element comprising:a first patterned magnetoresistive (MR) layer; a pair of opposite ends of said first patterned MR layer being in contact with a first pair of stacks defining a first track width of said patterned MR layer. each of said stacks including as follows: a first Anti-Ferro-Magnetic (AFM) layer and a first lead layer, and said device having a first longitudinal magnetic field bias in said first AFM layer, a second patterned MR layer, a pair of opposite ends of said second patterned MR layer in contact with a second pair of stacks defining a second track width of said second patterned MR layer, each of said second pair of stacks including as follows: a spacer layer composed of a metal, a Ferro-Magnetic (FM) layer, a second AFM layer and a second lead layer, and said device having a second longitudinal magnetic field bias in said second AFM layer.