Flexure of hard disk drive
A flexure of a hard disk drive includes a metal base, and a conductive member formed on the metal base. The conductive member includes an insulating layer and a conductive layer. The insulating layer has a flat portion and an elevated portion projected from the flat portion. The conductive layer has a connecting terminal formed along the side surface.
1. A flexure of a hard disk drive comprising:
a metal base including a metal plate; and
a conductive member formed on the metal base,
wherein:
the conductive member comprises an insulating layer formed on the metal base and a conductive layer formed on the insulating layer,
the insulating layer has a flat portion parallel to the metal base and an elevated portion projected from the flat portion,
the elevated portion has an upper surface parallel to the metal base and a side surface connecting the upper surface and the flat portion,
the conductive layer has a connecting terminal formed along the side surface,
the connecting terminal is covered with a plated layer formed of metal, and
the plated layer is opposed to the side surface via the connecting terminal.
2. The flexure of claim 1 , comprising a first said elevated portion, a second said elevated portion, and a third said elevated portion,
wherein:
an extension direction of the conductive member includes a first direction and a second direction opposite to the first direction,
the first elevated portion and the third elevated portion are arranged in a width direction intersecting the extension direction,
the second elevated portion is located between the first elevated portion and the third elevated portion in the width direction and is located on a second direction side with respect to the first elevated portion and the third elevated portion in the extension direction,
the connecting terminals of the first elevated portion and the third elevated portion are formed respectively on the side surfaces of the first elevated portion and the third elevated portion on a first direction side, and
the connecting terminal of the second elevated portion is formed on the side surface of the second elevated portion on the second direction side.
3. The flexure of claim 1 , comprising a first said elevated portion, a second said elevated portion, and a third said elevated portion,
wherein:
an extension direction of the conductive member includes a first direction and a second direction opposite to the first direction,
the first elevated portion and the third elevated portion are arranged in a width direction intersecting the extension direction,
the second elevated portion is located between the first elevated portion and the third elevated portion in the width direction and is located on a second direction side with respect to the first elevated portion and the third elevated portion in the extension direction,
the connecting terminals of the first elevated portion and the third elevated portion are formed respectively on the side surfaces of the first elevated portion and the third elevated portion on the second direction side, and
the connecting terminal of the second elevated portion is formed on the side surface of the second elevated portion on a first direction side.
4. The flexure of claim 1 , comprising a first said elevated portion and a fourth said elevated portion arranged in an extension direction of the conductive member,
wherein:
the extension direction includes a first direction and a second direction opposite to the first direction,
the fourth elevated portion is located on a second direction side with respect to the first elevated portion,
the connecting terminal of the first elevated portion is formed on the side surface of the first elevated portion on a first direction side, and
the connecting terminal of the fourth elevated portion is formed on the side surface of the fourth elevated portion on the second direction side.
5. The flexure of claim 1 , wherein:
the insulating layer includes a base insulating layer formed on the metal base, a first cover insulating layer formed on the base insulating layer, and a second cover insulating layer formed on the first cover insulating layer,
the first cover insulating layer is not stacked on the flat portion, and
the first cover insulating layer is stacked on the elevated portion.
6. A flexure of a hard disk drive comprising:
a metal base including a metal plate; and
a conductive member formed on the metal base,
wherein:
the conductive member comprises an insulating layer formed on the metal base and a conductive layer formed on the insulating layer,
the insulating layer has a flat portion parallel to the metal base and a plurality of elevated portions projected from the flat portion,
the elevated portions are arranged side by side and are spaced apart from each other,
the conductive layer has a plurality of connecting terminals formed respectively on upper surfaces of the elevated portions, and
a part of the flat portion is formed in a cap between two adjacent ones of the elevated portions.
7. The flexure of claim 6 , wherein:
the insulating layer includes a base insulating layer formed on the metal base, a first cover insulating layer formed on the base insulating layer, and a second cover insulating layer formed on the first cover insulating layer,
the first cover insulating layer is not stacked on the flat portion, and
the first cover insulating layer is stacked on the elevated portions.