Head slider supporting device and storage device
There is provided a head slider supporting device and a storage device capable of reducing the influence of a crosstalk between wirings. A head slider supporting device has one terminal connected to a magnetic head slider and the other terminal connected to a preamplifier IC. The head slider supporting device includes a supporting portion (flexure) that includes a conductor for supporting the magnetic head slider; an insulation portion that includes a dielectric contacting the supporting portion; a heater signal line 31 a that is a wiring for connecting the magnetic head slider and preamplifier IC in order to control a heater provided in the magnetic head slider and that contacts the insulation portion; a heater GND line 30 a that is a wiring for connecting the magnetic head slider and preamplifier IC in order to connect a heater and a ground and that contacts the insulation portion; and a GND connection line 30 b that is a wiring for connecting the heater GND line 30 a and supporting portion.
1 . A head slider supporting device for supporting a head slider provided with at least a heater element, comprising:
a supporting portion that includes a conductor for supporting the head slider;
an insulation portion that includes a dielectric contacting the supporting portion;
a heater signal line that is a wiring for supplying a power to the heater element and that contacts the insulation portion;
a GND line for heater that is a wiring for connecting the heater element and a ground potential and that contacts the insulation portion; and
a GND connection portion that is a connection portion for connecting the GND line for heater and supporting portion.
2 . The head slider supporting device according to claim 1 , wherein
a GND connection terminal of the heater element is connected to a slider base plate of the head slider.
3 . The head slider supporting device according to claim 1 , wherein
both terminals of a magnetoresistive effect element provided on the head slider is connected to the slider base plate of the head slider via a high-resistance resistor provided on the head slider.
4 . The head slider supporting device according to claim 1 , wherein
the insulation portion has a hole for the GND connection portion to pass through.
5 . The head slider supporting device according to claim 1 , wherein
the GND connection portion is arranged in the position where it does not contact a jig and other components.
6 . The head slider supporting device according to claim 1 , further comprising:
one or more write signal lines that are wirings for supplying a power to a write element provided in the head slider;
one or more read signal lines that are wirings for supplying a power to a read element provided in the head slider;
a retaining portion that retains the heater signal line, write signal line, and read signal line, wherein
at least one of distances between the heater signal line and write signal line and between the heater signal line and read signal line is larger than a distance between the heater signal lines in a predetermined region in the retaining portion.
7 . The head slider supporting device according to claim 6 , wherein
the predetermined region is a Tail portion in a Long Tail suspension.
8 . The head slider supporting device according to claim 6 , wherein
the distance is a distance in the width direction of the head slider supporting device.
9 . The head slider supporting device according to claim 8 , wherein
the write signal line, heater signal line, and read signal line are arranged in this order in the width direction of the head slider supporting device.
10 . A head slider supporting device for supporting a head slider provided with at least a heater element, comprising:
one or more heater signal lines that are wirings for supplying a power to the heater element;
one or more write signal lines that are wirings for supplying a power to a write element provided in the head slider;
one or more read signal lines that are wirings for supplying a power to a read element provided in the head slider;
a retaining portion that retains the heater signal line, write signal line, and read signal line, wherein
at least one of distances between the heater signal line and write signal line and between the heater signal line and read signal line is larger than a distance between the heater signal lines in a predetermined region in the retaining portion.
11 . The head slider supporting device according to claim 10 , wherein
the predetermined region is a Tail portion in a Long Tail suspension.
12 . The head slider supporting device according to claim 10 , wherein
the distance is a distance in the width direction of the head slider supporting device.
13 . The head slider supporting device according to claim 12 , wherein
the write signal line, heater signal line, and read signal line are arranged in this order in the width direction of the head slider supporting device.
14 . A storage device comprising:
a head controller that controls a head section;
a supporting portion that includes a conductor for supporting a head slider in which the head section is provided;
an insulation portion that includes a dielectric contacting the supporting portion;
a heater signal line that is a wiring for connecting the head slider and head controller in order to control a heater provided in the head slider and that contacts the insulation portion;
a GND line for heater that is a wiring for connecting the heater and a ground and that contacts the insulation portion; and
a GND connection portion that is a connection portion for connecting the GND line for heater and supporting portion.
15 . The storage device according to claim 14 , wherein
the insulation portion has a hole for the GND connection portion to pass through.
16 . The storage device according to claim 14 , wherein
the GND connection portion is arranged in the position where it does not contact a jig and other components.
17 . The storage device according to claim 14 , further comprising:
one or more write signal lines that are wirings for supplying a power to a write element provided in the head slider;
one or more read signal lines that are wirings for supplying a power to a read element provided in the head slider;
a retaining portion that retains the heater signal line, write signal line, and read signal line, wherein
at least one of distances between the heater signal line and write signal line and between the heater signal line and read signal line is larger than a distance between the heater signal lines in a predetermined region in the retaining portion.
18 . The storage device according to claim 17 , wherein the predetermined region is a Tail portion in a Long Tail suspension.
19 . The storage device according to claim 17 , wherein
the distance is a distance in the width direction of the retaining portion.
20 . The storage device according to claim 19 , wherein
the write signal line, heater signal line, and read signal line are arranged in this order in the width direction.