Slider and suspension arm interconnection for magnetic storage device
Disclosed herein is a magnetic storage device that comprises a suspension arm co-movably fixed to a carriage arm. The suspension arm comprises a slider attachment side and at least one first electrical contact pad on the slider attachment side. The suspension arm also comprises a slider co-movably fixed to the suspension arm. The slider comprises a suspension attachment side, a non-head side facing the suspension arm and intersecting the suspension attachment side at a first slider edge of the slider, a head side facing away from the suspension arm, and at least one electrical contact component on the suspension attachment side up to the first slider edge. At least one solder weldment is directly coupled to the at least one first electrical contact pad and the at least one electrical contact component. Additionally, a read-write head is coupled to the head side of the slider.
1. A magnetic storage device, comprising:
a magnetic disk;
a carriage arm rotatably movable relative to the magnetic disk;
a suspension arm co-movably fixed to the carriage arm, wherein the suspension arm comprises:
a slider attachment side; and
at least one first electrical contact pad on the slider attachment side;
a slider co-movably fixed to the suspension arm, wherein the slider comprises:
a suspension attachment side;
a non-head side facing the suspension arm and intersecting the suspension attachment side at a first slider edge of the slider;
a head side facing away from the suspension arm; and
at least one electrical contact component on the suspension attachment side up to the first slider edge, wherein the at least one electrical contact component comprises a first region, a second region, and a deformation region, and wherein the first region is narrower and nearer to the first slider edge than the second region and the deformation region is formed by lateral deformation of the first region along the first slider edge;
at least one solder weldment directly coupled to the at least one first electrical contact pad and the at least one electrical contact component; and
a read-write head coupled to the head side of the slider.
2. The magnetic storage device according to claim 1 , wherein:
the slider attachment side of the suspension arm, the non-head side of the slider, and the head side of the slider are parallel to the magnetic disk; and
the suspension attachment side of the slider is perpendicular to the magnetic disk.
3. The magnetic storage device according to claim 1 , wherein:
the at least one electrical contact component comprises a second electrical contact pad; and
the second electrical contact pad extends up to the first slider edge such that no gap exists between the second electrical contact pad and the first slider edge.
4. The magnetic storage device according to claim 1 , wherein:
the suspension arm comprises at least twelve first electrical pads;
the slider comprises at least twelve electrical contact components; and
the magnetic storage device comprises at least twelve weldments each directly coupled to corresponding ones of the at least twelve first electrical pads and the at least twelve electrical contact components.
5. A read-write head assembly for a magnetic storage device, comprising:
a suspension arm, comprising:
a slider attachment side; and
at least one first electrical contact pad on the slider attachment side;
a slider co-movably fixed to the suspension arm, wherein the slider comprises:
a suspension attachment side;
a non-head side facing the suspension arm and intersecting the suspension attachment side at a first slider edge of the slider;
a head side facing away from the suspension arm; and
at least one electrical contact component on the suspension attachment side up to the first slider edge, wherein the at least one electrical contact component comprises a first region and a second region, and wherein the first region is narrower and nearer to the first slider edge than the second region;
at least one solder weldment directly coupled to the at least one first electrical contact pad and the at least one electrical contact component, the at least one solder weldment extending into at least a quarter of the second region; and
a read-write head coupled to the head side of the slider.
6. The read-write head assembly according to claim 5 , wherein:
the at least one electrical contact component comprises a second electrical contact pad; and
the second electrical contact pad extends up to the first slider edge such that no gap exists between the second electrical contact pad and the first slider edge.
7. A method of making a magnetic storage device, the method comprising:
coupling at least one first electrical contact pad to a slider attachment side of a suspension arm;
coupling at least one electrical contact component to a suspension attachment side of a slider up to a first slider edge of the slider, the first slider edge being an intersection of the suspension attachment side and a non-head side of the slider facing the suspension arm, wherein the at least one electrical contact component comprises a first region, a second region, and a deformation region, and wherein the first region is narrower and nearer to the first slider edge than the second region and the deformation region is formed by lateral deformation of the first region along the first slider edge;
soldering the at least one first electrical contact pad of the suspension arm directly to the at least one electrical contact component of the slider; and
co-movably fixing the suspension arm to a carriage arm that is rotatably movable relative to a magnetic disk.
8. The method according to claim 7 , wherein:
the at least one electrical contact component comprises a second electrical contact pad; and
coupling the at least one electrical contact component comprises applying a strip of electrical material onto the suspension attachment side of the slider such that the strip of electrical material overhangs the first slider edge, trimming the strip of electrical material along the first slider edge, and, prior to trimming the strip of electrical material, forming the strip of electrical material to have a narrower width at the first slider edge than away from the first slider edge.