Method for defining a magnetoresistive junction using multiple mills at a plurality of angles
AssigneeWestern Digital (Fremont), LLC
InventorsGuanxiong Li, Xiaozhong Dang, Mahendra Pakala, Yong Shen
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Abstract
A method and system define a magnetoresistive junction in a magnetic recording transducer. The method and system include performing a first mill at a first angle from a normal to the surface of the magnetic recording transducer. A second mill is performed at a second angle from the normal to the surface. The second angle is larger than the first angle. A third mill is performed at a third angle from the normal to the surface. The third angle is not larger than the first angle.
Claims13
A method for defining a magnetoresistive junction in a magnetic recording transducer having a surface, the method comprising:
- performing a first mill at a first angle from a normal to the surface;
- performing a second mill at a second angle from the normal to the surface, the second angle being larger than the first angle;
- and
- performing a third mill at a third angle from the normal to the surface, the third angle being not larger than the first angle;
- wherein the third angle is not more than twelve degrees.
A method for defining a magnetoresistive junction in a magnetic recording transducer having a surface, the magnetoresistive junction including a barrier layer, the method comprising:
- performing a first mill at a first angle from a normal to the surface, the first angle being at least twelve degrees and not more than thirty degrees, the first mill being terminated after a portion of the junction including the barrier layer is defined;
- performing a second mill at a second angle from the normal to the surface, the second angle being at least sixty degrees;
- performing a third mill at a third angle from the normal to the surface, the third angle being not more than nine degrees.
Dependencies are inferred from the claim text.