Flexure of suspension for disk drive and suspension for disk drive, the flexure having an area with reduced thickness where an electronic component is mounted
A flexure of a suspension for a disk drive includes a metal base and a wiring portion provided along the metal base and including a base insulation layer, a conductor layer overlaid on the base insulation layer, and a cover insulation layer overlaid on the conductor layer. The flexure includes a first area on which an electronic component is mounted and a second area aligned alongside the first area, and the first area includes a thin-walled portion which overlaps the electronic component and having a thickness less than a thickness of the second area.
1. A flexure of a suspension for a disk drive, comprising a metal base and a wiring portion provided along the metal base and including a base insulation layer, a conductor layer overlaid on the base insulation layer, and a cover insulation layer overlaid on the conductor layer, the flexure comprising:
a first area on which an electronic component is mounted and a second area aligned alongside the first area,
wherein:
the first area includes a thin-walled portion which overlaps the electronic component and has a thickness that is less than a thickness of the second area,
the flexure further comprises an opening,
a side surface of the electronic component overlaps the opening,
the conductor layer and the cover insulation layer are provided in the thin-walled portion, and
the cover insulation layer in the thin-walled portion includes a side portion which covers one end of the conductor layer in the thin-walled portion at a side of the opening.
2. The flexure of claim 1 , wherein the conductor layer is provided in each of the first area and the second area.
3. The flexure of claim 2 , wherein a thickness of the conductor layer in the thin-walled portion is less than a thickness of the conductor layer in the second area.
4. The flexure of claim 2 , wherein:
the base insulation layer is provided in each of the first and second areas, and
a thickness of the base insulation layer in the thin-walled portion is less than a thickness of the base insulation layer in the second area.
5. The flexure of claim 1 , wherein:
the metal base is provided in each of the first and second areas, and
a thickness of the metal base in the thin-walled portion is less than a thickness of the metal base in the second area.
6. The flexure of claim 1 , wherein:
the electronic component is a slider, and
the wiring portion in the second area includes a terminal portion electrically connected to the slider.
7. A suspension for a disk drive, comprising:
the flexure of claim 1 , and
a load beam which the flexure overlaps.
8. The flexure of claim 1 , wherein:
the base insulation layer is provided in the thin-walled portion, and
the side portion of the cover insulation layer overlaps the base insulation layer in the thin-walled portion.
9. The flexure of claim 8 , wherein:
the base insulation layer is provided in the second area, and
one end of the base insulation layer in the second area opposes the side portion of the cover insulation layer with the opening therebetween.
10. The flexure of claim 1 , further comprising:
a pillow on which the electronic component is disposed.