| 摘要 |
PROBLEM TO BE SOLVED: To provide a read head capable of obtaining a high signal to noise ratio in a single magnetic recording system.SOLUTION: A read head comprises: a bottom shield layer 606; a magneto-resistive effect element 602 formed on the bottom shield layer; a top shield layer 604 formed over the magneto-resistive effect element; one or more side shield layers 608, 610 disposed between the bottom shield layer and the top shield layer; and an insulating layer 630 disposed between the magneto-resistive effect element and the one or more side shield layers. The one or more side shield layers are asymmetrically separated from the magneto-resistive effect element in an off-track direction and have an asymmetric read sensitivity profile in the off-track direction. |
