Abstract: The present disclosure involves electronic test structures, and related methods, for use with one or more magnetoresistive elements at least at the wafer stage of slider manufacturing.

Abstract: The present disclosure involves electronic test structures, and related methods, for use with one or more magnetoresistive elements at least at the wafer stage of slider manufacturing.

Abstract: A method includes depositing a plurality of layers over a substrate. The layers include read sensor layers and an electrically conductive layer substantially coplanar with the read sensor layers and substantially surrounding the read sensor layers. The electrically conductive layer is in contact with at least one of the read sensor layers. The electrically conductive layer provides an electrical path between the at least one of the read sensor layers and ground. The method further includes forming an isolation structure around the read sensor layers by removing a portion of the electrically conductive layer substantially surrounding the read sensor layers. The isolation structure is substantially coplanar with the read sensor layers and substantially surrounds the read sensor layers. The isolation structure breaks the electrical path between the at least one of the read sensor layers and the ground.

Abstract: A method of manufacturing a magnetic read-write head, including the steps of presenting a row bar to a processing location, the row bar including an air bearing surface, at least one read-write head, at least one electronic lapping guide, and at least one trigger device, wherein each electronic lapping guide is positioned at a different distance from the air bearing surface than each trigger device, and wherein the read-write head and at least one of the trigger devices include a multi-layer stack of materials; lapping the air bearing surface while measuring the electrical resistance of at least one electronic lapping guide and at least one trigger device until the resistance measurement of the trigger device provides an open circuit reading, and measuring an offset resistance value of the at least one electronic lapping guide concurrently with the measurement of the open circuit reading by the trigger device.

Abstract: A method of manufacturing a magnetic read-write head, including the steps of presenting a row bar to a processing location, the row bar including an air bearing surface, at least one read-write head, at least one electronic lapping guide, and at least one trigger device, wherein each electronic lapping guide is positioned at a different distance from the air bearing surface than each trigger device, and wherein the read-write head and at least one of the trigger devices include a multi-layer stack of materials; lapping the air bearing surface while measuring the electrical resistance of at least one electronic lapping guide and at least one trigger device until the resistance measurement of the trigger device provides an open circuit reading, and measuring an offset resistance value of the at least one electronic lapping guide concurrently with the measurement of the open circuit reading by the trigger device.

Abstract: A method of manufacturing a magnetic read-write head, including the steps of presenting a row bar to a processing location, the row bar including an air bearing surface, at least one read-write head, at least one electronic lapping guide, and at least one trigger device, wherein each electronic lapping guide is positioned at a different distance from the air bearing surface than each trigger device, and wherein the read-write head and at least one of the trigger devices include a multi-layer stack of materials; lapping the air bearing surface while measuring the electrical resistance of at least one electronic lapping guide and at least one trigger device until the resistance measurement of the trigger device provides an open circuit reading, and measuring an offset resistance value of the at least one electronic lapping guide concurrently with the measurement of the open circuit reading by the trigger device.

Abstract: A method of manufacturing a magnetic read-write head, including the steps of presenting a row bar to a processing location, the row bar including an air bearing surface, at least one read-write head, at least one electronic lapping guide, and at least one trigger device, wherein each electronic lapping guide is positioned at a different distance from the air bearing surface than each trigger device, and wherein the read-write head and at least one of the trigger devices include a multi-layer stack of materials; lapping the air bearing surface while measuring the electrical resistance of at least one electronic lapping guide and at least one trigger device until the resistance measurement of the trigger device provides an open circuit reading, and measuring an offset resistance value of the at least one electronic lapping guide concurrently with the measurement of the open circuit reading by the trigger device.