Magnetic recording head slider comprising bond pad having a probe contact area and a solder contact area
View Patent ↗Examples of a magnetic recording head slider, a head gimbal assembly and methods of manufacturing each are disclosed. The magnetic recording head slider may comprise a slider body and a plurality of bond pads formed on a trailing edge of the slider body. Each of the plurality of bond pads may include a probe contact area and a soldering contact area. The probe contact area may be larger than the soldering contact area. The head gimbal assembly may include a suspension arm with conductive leads. A plurality of bond pads may be formed on the suspension arm in contact with the ends of the conductive leads. A width of a proximal portion of each of the bond pads may be greater than a width of a distal portion of each of the plurality of bond pads. The methods may include forming the above-described structures.
1. A magnetic recording head slider, comprising:
a slider body; and
a plurality of bond pads formed on a trailing edge of the slider body,
wherein each of the plurality of bond pads comprises a probe contact area and a soldering contact area with each area being laterally bounded in a width dimension, along the trailing edge, by respective edges of the pads wherein a width of the probe contact area is greater than a width of the soldering contact area of each respective pad whereby the probe contact area is larger than the soldering contact area.
2. The magnetic recording head slider according to claim 1 , wherein the plurality of bond pads are formed in a linear arrangement adjacent one another along the trailing edge of the slider body.
3. The magnetic recording head slider according to claim 2 , wherein each of the plurality of bond pads is aligned with the soldering contact area proximal to a mounting surface of the slider body and the probe contact area distal to the mounting surface of the slider body.
4. The magnetic recording head slider according to claim 1 , wherein the plurality of bond pads comprises eight bond pads.
5. The magnetic recording head slider according to claim 1 , wherein the plurality of bond pads are formed at a constant pitch along the trailing edge of the slider body, and wherein spacing between adjacent soldering contact areas is greater than spacing between adjacent probe contact areas.
6. The magnetic recording head slider according to claim 1 , wherein the width of the soldering contact area is 40 μm or less and the width of the probe contact area is 60 μm or less.
7. A head gimbal assembly comprising:
a suspension arm comprising a plurality of trace bond pads; and
a slider coupled to the suspension arm, the slider comprising:
a slider body; and
a plurality of slider bond pads formed on a trailing edge of the slider body and soldered to the trace bond pads by a solder, wherein:
each slider bond pad comprises a probe contact area and a soldering contact area with each area being laterally bounded in a width dimension, along the trailing edge, by respective edges of the pads wherein a width of the probe contact area is greater than a width of the soldering contact area of each respective pad whereby:
the probe contact area is larger than the soldering contact area;
the solder covers substantially all of the soldering contact area; and
the probe contact area is substantially uncovered by the solder.
8. The head gimbal assembly as recited in claim 7 , wherein:
the soldering contact area comprises a first rectangular surface; and
the probe contact area comprises a second rectangular surface wider than the first rectangular surface.