Method for correcting floating-type magnetic head device mounted in hard disk device
AssigneeTDK Corporation
InventorMichiharu Motonishi
Life of this patent
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Abstract
A correcting method for reducing variations in floating height and gram load of a floating-type magnetic head device is disclosed. The correcting method includes a first correcting step of detecting a roll-angle corresponding amount in the free state of the front end of the front end and bending the load beam in the direction where the roll-angle corresponding amount approaches zero, and a second correcting step of putting the floating-type magnetic head device into a temporarily mounted state with respect to the load beam, detecting a roll-angle corresponding amount at the tongue piece of the flexure in the temporarily mounted state, and bending at least one of the left and right outriggers in the direction where the roll-angle corresponding amount approaches zero.
Claims7
A correcting method for a floating-type magnetic head device for use with a recording medium, the floating-type magnetic head device comprising:
- a load beam made of a metallic material and that extends over a recording medium;
- a flexure made of a metal material and disposed in the load beam adjacent to the recording medium, the flexure including a fixed part fixed to the load beam;
- a pair of left and right outriggers that extends from the fixed part toward the load beam adjacent to a free end of the load beam;
- and a tongue piece that extends from a front end of the outriggers toward an inner area of the outriggers;
- and
- a head body fixed on the surface of the tongue piece adjacent to the recording medium,
- wherein during rotation of the recording medium, the head body floats over the recording medium, the correcting method comprising:
- a first detecting step of detecting a roll-angle corresponding amount at a front end of the load beam in a state where a base of the load beam is fixed on a reference surface so that the front end of the load beam is put into a free state;
- a first bending step of, based on the roll-angle corresponding amount at the front end of the load beam detected in the first detecting step, bending the load beam in a direction where the roll angle at the front end of the load beam approaches zero;
- a temporarily mounting step of putting the floating-type magnetic head device that has undergone the first bending step into a temporarily mounted state so as to float the head body over a disk equivalent surface;
- a second detecting step of detecting a roll-angle corresponding amount at the tongue piece of the flexure in the temporarily mounted state;
- and
- a second bending step of, based on the roll-angle corresponding amount at the tongue piece of the flexure detected in the second detecting step, bending at least one of the left and right outriggers in a direction where the roll angle at the tongue piece of the flexure approaches zero.
Dependencies are inferred from the claim text.