Patent ID: 7652856
Filing Date: 2010-01-26
Classification: G01R,G11B

Abstract:
1. A current perpendicular to plane (CPP) magnetoresistive sensor having an air bearing surface, the sensor comprising: a first magnetic pinned layer structure, the entire first pinned layer structure extending from the air bearing surface to a first stripe height distance as measured from the air bearing surface and terminating at the first stripe height distance; a second magnetic pinned layer structure, the entire second pinned layer structure extending from the air bearing surface to a second stripe height distance that is greater than the first stripe height distance as measured from the air bearing surface and terminating at the second stripe height distance; a magnetic free layer structure, located between the first and second pinned layer structures; a first non-magnetic electrically conductive spacer layer sandwiched between the first pinned layer structure and the free layer; and a second non-magnetic electrically conductive spacer layer sandwiched between the second pinned layer structure and the free layer.