JP2002216447A - Magnetic head device and magnetic recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnetic head device, in which the fluctuations of a still posture angle and load and also the change of a slider shape are evadable. SOLUTION: A take-out electrode 21 is furnished at the side end surface 23 of a slider 2. A metallic connection piece 6 is provided with a linear projecting part 62, and a base part 61 is welded to the take-out electrode 21. The linear projecting part 62 is projected from the side end surface 23 of the slider 2 and joined with an end part electrode 30 of an FPC3 by a conductive joining material 60.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a magnetic head device and a magnetic recording / reproducing device.

[0002]

2. Description of the Related Art In a floating magnetic disk drive, a magnetic head supporting structure is a head having a magnetic head mounted on a gimbal. Gimbal assembly (Head Gimbal Assembly, hereinafter referred to as HGA), head with HGA attached to arm. An arm assembly (hereinafter referred to as HAA), and a head in which a plurality of HAAs are stacked.
A stack assembly (Head Stack Assembly, hereinafter referred to as HSA) can be divided into three modes.

In the case of obtaining the above-mentioned HGA, HAA and HSA, conventionally, after a magnetic head is attached to the HGA portion, an extraction electrode of the magnetic head and a metal connecting piece of a flexible lead made of a tab tape or the like are conventionally used. Was connected by a gold ball bondig or the like. After this, HGA, HA
In the states A and HSA, the characteristics of the magnetic head, for example, the write characteristics and the read characteristics are measured.

However, in the case of conventional gold ball bonding, a pressing force is applied to the magnetic head obliquely with respect to the mounting surface of the head support and the magnetic head, so that the magnetic head is inclined with respect to the mounting surface. As a result, the static attitude angles such as the pitch angle and the roll angle, and further, the load may change to an uncorrectable region.

[0005] Since the oblique pressing force is also applied to the head support, mechanical distortion or deformation occurs in the head support,
There has also been a problem that fluctuations in the static attitude angle, loads and the like are caused. If mechanical distortion occurs in the head support, the magnetic head is affected and the air bearing surface (ABS)
Surface) may change into a crown shape. Such deformation of the ABS surface causes head crash, damage to the magnetic disk, and destruction of magnetic recording due to the crash.

If the magnetic head device has the above-described problems, it cannot be shipped as it is. In such a case, treating as a defective product means eliminating disposal and assembly costs of expensive HGA, HAA, and HSA to which the magnetic head is attached, resulting in a large loss.

As another conventional technique, a technique has recently been proposed in which a lead electrode formed of a magnetic head and a lead wire made of a tab tape or the like are connected by soldering. For example, JP-A-7-320434 discloses a slider. suspension. A method of manufacturing an assembly is disclosed. In this prior art, each termination pad and each contact. A solder bump is formed on the pad, and the solder bump is flattened. Next, the termination pad is the contact. Attach the slider to the suspension so that it is properly aligned with the pad. Next, heat the solder bumps,
The terminal pads and the bumps of the contact pads are reflowed and electrically connected.

In this prior art, since solder bumps must be formed on the termination pad and the contact pad, solder evaporation, solder plating, or soldering for forming the solder bumps is performed on both the slider and the flexible lead wire. It is necessary to add processes such as printing, which increases the number of processes,
In addition, the cost is increased.

Also, since the joining is performed only by solder,
Depending on the soldering conditions, the bonding strength of the slider to the suspension may be insufficient.

[0010]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a magnetic head device and a magnetic recording / reproducing apparatus which can avoid fluctuations in a static attitude angle and a load in a process of assembling the magnetic head device.

Another object of the present invention is to provide a magnetic head device and a magnetic recording / reproducing device capable of avoiding a change in a slider shape in a process of assembling the magnetic head device.

[0012]

In order to solve the above-mentioned problems, the present invention discloses magnetic heads according to two aspects. A magnetic head device according to a first aspect includes a head support and a magnetic head.

The head support has a head mounting portion and insulated wiring, and an end electrode of the wiring is exposed near the head mounting portion.

The magnetic head includes a slider, an extraction electrode, and a metal connecting piece. The extraction electrode is provided on a side end surface of the slider. The metal connecting piece has a linear protrusion and is attached to the extraction electrode, and the linear protrusion protrudes from the end surface of the slider.

In the magnetic head, the slider is fixed to the head mounting portion of the head support, and the linear projection of the metal connecting piece is electrically connected to an end electrode of the wiring of the head support. Connected by materials.

Here, in the magnetic head device according to the present invention, the magnetic head includes a metal connecting piece, the metal connecting piece has a linear projection, and an extraction electrode provided on a side end surface of the slider. Is attached to.

According to this bonding structure, when the linear protrusion of the metal connecting piece and the end electrode are connected by the conductive bonding material, the conductive bonding material is applied to the end electrode from above the linear protrusion. Since it is sufficient to supply the magnetic head, it is possible to avoid applying a pressing force to the magnetic head obliquely with respect to the mounting surface of the head support and the magnetic head. Therefore,
It is possible to prevent the slider from floating from the head support and minimize the change in pitch angle and roll angle.

For the same reason, it is possible to suppress the mechanical distortion of the head support, so that the variation of the static attitude angle and the variation of the load due to the mechanical distortion of the head support can be minimized. Since the mechanical distortion of the head support can be minimized, the ABS of the magnetic head can be prevented from changing in a crown shape. Therefore, it is possible to avoid head crash, damage to the magnetic disk, and destruction of magnetic recording due to deformation of the ABS.

A magnetic head device according to a second aspect includes a head support, a magnetic head, and a flexible wiring board.
The head support has a head mounting portion. The magnetic head includes a slider and an extraction electrode, the extraction electrode is provided on a side end surface of the slider, and the slider is fixed to the head mounting portion of the head support.

The flexible wiring board comprises: an insulating film;
Includes wiring and metal connection pieces. The insulating film has flexibility. The wiring is embedded inside the insulating film, and an end is exposed from one surface of the insulating film to the outside.

The metal connecting piece has a linear protrusion, and is attached to the end, and the linear protrusion protrudes from the one surface of the insulating film.

The flexible wiring board is attached to the head support, and the linear protrusion of the metal connection piece is connected to the extraction electrode of the magnetic head by a conductive bonding material.

As described above, in the magnetic head device according to the second aspect, the flexible wiring board includes the metal connection pieces, and the metal connection pieces have the linear protrusions. The linear protrusion of the piece is connected to the extraction electrode of the magnetic head by a conductive bonding material.

According to this joining structure, it is possible to avoid applying a pressing force to the magnetic head from an oblique direction. Therefore, it is possible to prevent the slider from floating from the head support, and to minimize the change in the pitch angle and the roll angle.

For the same reason, it is possible to suppress the occurrence of mechanical distortion in the head support. Therefore, it is possible to minimize the fluctuation of the static attitude angle and the fluctuation of the load due to the mechanical distortion of the head support. Since the mechanical distortion of the head support can be minimized, the ABS of the magnetic head can be prevented from changing in a crown shape. Therefore, it is possible to avoid head crash, damage to the magnetic disk, and destruction of magnetic recording due to deformation of the ABS.

Other objects, configurations and advantages of the present invention will be described more specifically with reference to the accompanying drawings. The figures are merely examples.

[0027]

FIG. 1 is a perspective view of a magnetic head device according to a first embodiment, and FIG. 2 is an enlarged partial sectional view of a head mounting portion of the magnetic head device shown in FIG. The illustrated magnetic head device is an HGA in which an FPC 3 is bonded on the head support 1, and a magnetic head 4 is bonded on the head support 1 on the side where the FPC 3 is bonded.

The head support 1 includes a load beam 11 and
And a flexible body 12. The load beam 11 has a protrusion 111 near the free end of the longitudinal axis passing through the center (see FIG. 2).
Having. The illustrated load beam 11 has bent portions 118 on both sides in the width direction.
18, the rigidity is increased. The load beam 11 has a positioning hole 112 at an end opposite to the protrusion 111 (see FIG. 2). The load beam 11 is
Various structures and shapes can be adopted, and the present invention is not limited to the illustrated embodiment. For example, the load beam 11 may be provided with a hole for improving the followability of the magnetic head 4 to a recording medium (not shown) or a hole for increasing the overall elasticity.

The flexible body 12 is made of a thin spring plate material, and one surface is attached to the surface of the load beam 11 on the side having the projection 111, and receives a pressing load from the projection 111. The flexible body 12 is provided with a projection 111 of the load beam 11.
Are bonded to each other by means such as caulking. Instead of caulking, a method such as spot welding may be used.

Further, the flexible body 12 has a tongue-shaped portion 120 serving as a head mounting portion. One end of the tongue 120 is connected to the horizontal frame 121 of the flexible body 12. Flexible body 12
Of the horizontal frame portion 121 are connected to the outer frame portions 123 and 124 at both ends. A groove 122 is formed between the outer frame parts 123 and 124 and the tongue part 120. The FPC 3 and the magnetic head 4 are attached to one surface of the tongue 120 by bonding. The tip of the projection 111 is in contact with the other surface of the tongue 120, so that the tongue 120 serving as the head mounting portion has two degrees of freedom around two orthogonal axes, namely, pitch and roll. Has the two degrees of freedom.

The FPC 3 is an extremely thin insulating film 31
The required wiring 32 is buried inside. FP
C3 is bonded to the magnetic head mounting surface side of the head support 1. The wiring 32 is exposed to the outside at both ends in the longitudinal direction of the insulating film 31, constitutes an end electrode 33 for external connection at one end, and is connected to the extraction electrode 21 of the magnetic head 4 at the other end. The end electrode 30 is formed. The illustrated FPC 3 has a frame 35 overlapping the tongue 120 and a cutout 34 exposing a part of the tongue 120.

As the head support 1, the illustrated FP
In addition to the structure in which C3 is attached, a wiring-integrated head support in which a wiring pattern is formed directly on the surface of the head support 1 by using, for example, photolithography can also be used.

FIG. 3 is a perspective view of the magnetic head shown in FIGS. The magnetic head shown is a slider 2
And the extraction electrode 21 and the metal connection piece 6. The slider 2 includes an inductive electromagnetic transducer 92 and an element 9 (hereinafter, referred to as an MR element) utilizing a magnetoresistive effect.

The slider 2 has a groove 277 on the medium facing surface side.
Has two rails 273 and 274 separated by a rail, and the surfaces of the rails are used as ABS surfaces 271 and 272. The number of rails 273 and 274 is not limited to two. 1 to
It may have three rails and may be a flat surface without rails. In order to improve the floating characteristics,
Various geometric shapes may be given to the medium facing surface. The present invention is applicable to any type of the slider 2. Further, the slider 2 may be provided with a protective film such as DLC having a thickness of, for example, about 8 to 10 nm on the surface of the rail. In such a case, the surface of the protective film becomes the ABS surfaces 271, 272.

Air outflow direction (magnetic disk rotation direction) F
Regarding 1, the extraction electrode 21 connected to the induction type electromagnetic transducer 92 and the MR element 93 is provided on the side end face 23 on the air outflow end side. In the embodiment, two extraction electrodes 21 for the inductive electromagnetic transducer 92 and the MR element 9
3 for two extraction electrodes 21.

The metal connecting piece 6 is attached to the extraction electrode 21. The metal connecting piece 6 has a linear protrusion 62, and the linear protrusion 62 protrudes from the side end surface 23 of the slider 2. The metal connection piece 6 is generally made of a wire bonding wire, specifically, a wire bonding wire such as Au or Al.

The metal connecting piece 6 is obtained by applying a wire bonding method and performing wire bonding on the extraction electrode 21, and then cutting the wire slightly above the welded portion. The base 61 of the metal connection piece 6 is a welded portion when wire bonding is performed, and the wire diameter of the linear projection 62 is given by the wire diameter of the wire bonding wire. Its length L1
Can be set arbitrarily. Generally, it has a length L1 of about 200 μm.

The magnetic head 4 is disposed on the frame 35 and the notch 34 on one surface of the tongue 120, and is adhered to the tongue 120 of the flexible body 12 by an adhesive 53. The surface of the magnetic head 4 opposite to the mounting side is the ABS surfaces 271 and 272.

The linear projecting portion 62 of the metal connecting piece 6 is attached to the extraction electrode 21 of the magnetic head 4 by welding or the like, and is further connected to the end electrode 30 provided on the FPC 3 by a conductive bonding material 60. It is connected. Conductive bonding material 60
Is made of solder or a conductive adhesive. The conductive adhesive is basically a mixture of an organic resin adhesive component and a conductive component, and since various types are already known, it is possible to select and use an appropriate one from them. it can. In the illustration of FIG. 2, the conductive bonding material 60 is
It is laid on the end electrode 30 provided in the FPC 3, and the linear projection 62 of the metal connecting piece 6 is positioned and joined in the upper region thereof.

As described above, in the magnetic head device according to the present invention, the magnetic head 4 has the metal connecting piece 6, the metal connecting piece 6 has the linear projecting portion 62, It is attached to an extraction electrode 30 provided on the end face.

According to this joining structure, when the linear projecting portion 62 of the metal connecting piece 6 and the end electrode 30 are connected by the conductive joining material 60, the end electrode 30 is placed from above the linear projecting portion 62.
Since the conductive bonding material 60 may be supplied to the magnetic head 4, it is possible to avoid applying a pressing force to the magnetic head 4 from an oblique direction. Therefore, the slider 2 is moved to the head support 1
The change in pitch angle and roll angle can be minimized.

For the same reason, the mechanical distortion of the head support 1 can be suppressed, so that the variation of the static attitude angle and the load due to the mechanical distortion of the head support 1 can be minimized. Since the mechanical distortion of the head support 1 can be minimized, the ABS 2
71, 272 can be prevented from changing into a crown shape.
Therefore, it is possible to avoid head crash, damage to the magnetic disk, and destruction of magnetic recording due to deformation of the ABS surfaces 271, 272.

FIG. 4 is an enlarged sectional view of the magnetic head shown in FIG. In the figures, the dimensions are exaggerated. In the figure, an inductive electromagnetic transducer 92 is a writing element,
The MR element 93 is a reading element. The inductive electromagnetic transducer 92 and the MR element 93 are provided on one or both of the rails 273 and 274 on the side of the air outflow end TR.
The inductive type electromagnetic transducer 92 and the MR element 93 are provided on the slider 2, and the end for electromagnetic conversion is formed on the ABS 27.
1, 272. Slider 2 is Al ₂ O ₃
This is a ceramic structure in which an inorganic insulating film 916 such as Al ₂ O ₃ or SiO ₂ is provided on the surface of a base 915 made of TiC or the like.

The inductive electromagnetic transducer 92 has a first magnetic film 921, a second magnetic film 922, a coil film 923, a gap film 924 made of alumina or the like, an insulating film 925, a protective film 926, and the like. .

First magnetic film 921 and second magnetic film 92
2 has a pole end opposed to the gap film 924 having a very small thickness, and performs writing at the pole end. The first and second magnetic films 921 and 922 may be a single film or may have a multi-layer film structure. First
In addition, the formation of the multiple magnetic films of the second magnetic films 921 and 922 may be performed, for example, for the purpose of improving characteristics. Regarding the structure of the pole end, various improvements and proposals have been made from the viewpoints of narrowing the track width and improving the recording capability. In the present invention, any of the pole structures proposed so far can be adopted. The gap film 924 is formed of a nonmagnetic metal film or an inorganic insulating film such as alumina.

The second magnetic film 922 further extends behind the ABS surfaces 271 and 272 while maintaining an inner gap between the second magnetic film 922 and the first magnetic film 921. Is joined to. This allows
The thin-film magnetic circuit surrounding the first magnetic film 921, the second magnetic film 922, and the gap film 924 is completed.

The coil film 923 is sandwiched between the first and second magnetic films 921 and 922, and spirals around the rear coupling portion 942. Both ends of the coil film 923 are electrically connected to the extraction electrode 21 (see FIG. 3). The number of turns and the number of films of the coil film 923 are arbitrary.

The insulating film 925 is formed of an organic insulating resin film or a ceramic film. A typical example of a ceramic membrane is Al ₂ O
₃ film or SiO ₂ film. A coil film 923 is embedded in the insulating film 925. The insulating film 925 is filled in the inner gap between the first and second magnetic films 921 and 922. On the surface of the insulating film 925, a second magnetic film 922 is provided.

The protective film 926 is formed of an inductive type electromagnetic transducer 92.
It covers the whole. The protective film 926 is made of Al ₂ O ₃ or SiO ₂
And the like.

As the MR element 93, those having various film structures have been proposed and put to practical use. For example, there are a device using an anisotropic magnetoresistive effect device made of permalloy or the like, a device using a giant magnetoresistive (GMR) effect film such as a spin valve film structure or a perovskite type magnetic material, a ferromagnetic tunnel junction effect device, and the like. In the present invention, any type may be used. The MR element 93 is disposed inside the insulating film 71 between the first shield film 931 and the second shield film 921 also serving as the first magnetic film 921. The insulating film 71 is made of alumina or the like. The MR element 93 is connected to the extraction electrode 21 (see FIG. 3). The second shield film may be different from the first magnetic film 921.

FIG. 5 is a partial sectional view showing another embodiment of the magnetic head device according to the first embodiment. In the figure, FIG.
The same reference numerals are given to the same components as those shown in FIG. In this embodiment, the conductive bonding material 60 directly connects the end electrode 30 provided on the FPC 3 and the extraction electrode 21 of the magnetic head 4 with the linear projection 62 of the metal connection piece 6 as a core. Are joined.

FIGS. 6 to 11 show a wire bonding apparatus used for welding the metal connecting piece 6 in the magnetic head shown in FIGS. 3 and 4, and an operation method thereof.

First, referring to FIG. 6, the wire bonding apparatus includes a spark torch body 80 and a capillary tool 83. The spark torch body 80 is
And an insulating coating 803. The base 801 is made of a metal body having a low electric resistance such as copper, for example, and has a spark electrode part 805 in part. The insulating coating 803 is made of an electromagnetic wave absorbing insulating coating, and excluding the spark electrode portion 805.
01 surface.

The capillary tool 83 includes a metal wire 82
, And the end of the held metal wire 82 is arranged at a position facing the spark electrode portion 805 of the spark torch body 80. The metal wire 82 is connected to the wire supply unit 81
Supplied from 1. As the metal wire 82, a conventionally known wire such as an Au wire or an Al wire can be used.

Further, the wire bonding apparatus comprises a high voltage power supply 85 and metal wire fixing means 871 and 872.
And cable lines 891 to 893. The high voltage power supply 85 is connected to the tip of the metal wire 82 and the spark torch body 80.
A DC high voltage sufficient to generate a spark between the spark electrode unit 805 and the spark electrode unit 805 is generated. High voltage power supply 85
A power-on switch 84 is inserted on the high-potential side (+).

The metal wire fixing means 871 and 872 fix or release the intermediate portion of the metal wire 82, and when the metal wire 82 is fixed, the metal wire 82 is electrically connected to the metal wire 82. This metal wire fixing means 8
71 and 872 are provided before the capillary tool 83 and supply the metal wire 82 to the capillary tool 83.

The cable lines 891 to 893 constitute an electric circuit for electrically connecting the metal wire fixing means 871 and 872, the metal wire 82, and the spark torch body 80 in series. The metal wire fixing means 871 and 872 are connected to the high-potential side (+) of the high-voltage power supply device 85 via a cable line 892, and are further grounded via a cable line 893. The spark torch body 80 is
It is connected to the low potential side (−) of the high voltage power supply 85 via 91.

The illustrated wire bonding apparatus further includes an ultrasonic excitation unit 86. The ultrasonic excitation unit 86 excites the capillary tool 83.

A support (work) 88 on which the magnetic head 4 is mounted is disposed in advance below the spark torch body 80 and at a position facing the capillary tool 83. When the spark torch body 80 performs the retreat operation, the magnetic head 4 mounted on the work 88 comes to face the capillary tool 83.

In the operation of the wire bonding apparatus shown in FIG. 6, the tip of the metal wire 82 guided through the capillary tool 83 is opposed to the spark electrode portion 805 of the spark torch body 80 at a small interval. Let it.

Then, as shown in FIG. 7, an intermediate portion of the metal wire 82 is sandwiched by the metal wire fixing means 871 and 872, and the metal wire 82 is fixed and made electrically conductive. In this state, as shown in FIG. 8, the power-on switch 84 is turned on, and a high voltage (DC voltage) is applied between the tip of the metal wire 82 and the spark electrode portion 805 of the spark torch body 80. As a result, a spark is generated between the tip of the metal wire 82 and the spark electrode portion 805 of the spark torch body 80, and the tip of the metal wire 82 melts due to the heat of the spark, and the metal ball 82
1 is formed.

Next, as shown in FIG. 9, the power-on switch 84 is turned off, and the spark torch body 80 is retracted from the position facing the capillary tool 83 in the direction indicated by the arrow a1.

Next, as shown in FIG. 10, the capillary tool 83 is lowered in the direction shown by the arrow b1 to
The metal ball 821 formed at the tip of the metal wire 82 is pressed against the extraction electrode 21 of the magnetic head 4 mounted on the magnetic head 4.

Then, the capillary tool 83 is excited by ultrasonic waves by the ultrasonic excitation means 86, and the metal ball 821 formed at the tip of the metal wire 82 is welded to the extraction electrode 21.

Next, as shown in FIG.
The metal connection piece 6 having the linear projection 62 is formed by cutting the metal connection piece 2 while leaving an appropriate length. Thus, the magnetic head shown in FIG. 3 is obtained. After this, the capillary tool 83
Is moved in the direction of arrow b2 to return to the original position in FIG.

In the examples of FIGS. 6 to 11, the process of bonding the metal wire 82 to the single magnetic head 4 has been described. However, the head assembly or the magnetic head wafer in which a large number of magnetic heads are aligned can also be used. A bonding step using the same metal wire 82 can be performed.

FIG. 12 is a partial sectional view of a magnetic head device according to the second embodiment. In the figure, the same components as those shown in FIG. 2 are denoted by the same reference numerals. The illustrated magnetic head device is an HGA,
The FPC 3 is bonded on the head support 1, and the magnetic head 4 is mounted on the head support 1 on the side where the FPC 3 is bonded.
Is glued. The head support 1 has a tongue-shaped piece 120 serving as a head mounting portion. It includes a magnetic head 4 and an extraction electrode 21. The extraction electrode 21 is provided on a side end surface 23 on the air outflow end side of the magnetic head 4. The magnetic head 4 has a tongue-shaped piece 120 serving as a head mounting portion of the head support 1.
Fixed to.

FIG. 13 is an enlarged perspective view of the FPC 3 included in the magnetic head device of FIG. The FPC 3 includes an insulating film 31 and a wiring 32. The insulating film 31 has flexibility. The wiring 32 is embedded inside the insulating film 31, and both ends are exposed to the outside from one surface of the insulating film 31 to form the end electrodes 30 and 33.

The feature of this embodiment is that the FPC 3 has the metal connecting piece 6. The metal connection piece 6 has a linear protrusion 62, and the base 61 is attached to the end electrode 30 by welding or the like. The linear protrusion 62 extends from the base 61 and protrudes from one surface of the insulating film 31. The metal connection piece 6 is made of a wire bonding wire such as Au or Al.

The metal connecting piece 6 is obtained by applying wire bonding to the end electrode 30 by applying the wire bonding method shown in FIGS. 6 to 11, and cutting the wire slightly above the welded portion. The base 61 of the metal connection piece 6 is a welded portion when wire bonding is performed, and the wire diameter of the linear projection 62 is given by the wire diameter of the wire bonding wire. The length L1 is, for example, about 200 μm.

The linear projection 62 of the metal connection piece 6 attached to the end electrode 30 by welding or the like is connected to the extraction electrode 21 provided on the magnetic head 4 by a conductive bonding material 60. . In the illustration of FIG. 12, the conductive bonding material 60
Is formed by connecting the extraction electrode 21 of the magnetic head 4 and the end electrode 30 provided on the FPC 3 to the linear projection 62 of the metal connection piece 6.
The core is directly joined.

In the magnetic head device according to the above-described second aspect, the FPC 3 includes the metal connection piece 6, the metal connection piece 6 has the linear protrusion 62, and is provided on the side end surface of the slider 2. Is attached to the extracted extraction electrode 30.

According to this bonding structure, when the extraction electrode 21 of the magnetic head 4 and the end electrode 30 of the FPC 3 are connected by the conductive bonding material 60, the linear projection 62 is connected to the end electrode 30 from above. Since it is sufficient to supply the conductive bonding material 60, it is possible to avoid applying a pressing force to the magnetic head 4 from an oblique direction. Therefore, it is possible to prevent the slider 2 from floating from the head support 1, and to minimize the change in the pitch angle and the roll angle.

For the same reason, it is possible to suppress the occurrence of mechanical distortion in the head support 1, so that it is possible to minimize the fluctuation of the static attitude angle and the fluctuation of the load due to the mechanical distortion of the head support 1. Since the mechanical distortion of the head support 1 can be minimized, the ABS 2
71, 272 can be prevented from changing into a crown shape.
Therefore, it is possible to avoid head crash, damage to the magnetic disk, and destruction of magnetic recording due to deformation of the ABS surfaces 271, 272.

FIG. 14 is a partial sectional view showing still another embodiment of the magnetic head device according to the second aspect. In the figure, the same components as those shown in FIG. 13 are denoted by the same reference numerals. In the embodiment shown in FIG. 14, the conductive bonding material 60 is connected to the extraction electrode 21 of the magnetic head 4.
And the linear protrusion 62 of the metal connecting piece 6 is positioned and joined in the end region.

The present invention can be applied to the above-described HGA,
HAA and HSA are also applicable. FIG. 15 is a front view of the HAA, and FIG. 16 is a side view of the HAA shown in FIG. The HAA shown is a head support 1
, A magnetic head 4 and an arm piece 51. The arm piece 51
It is integrally formed using a suitable non-magnetic metal material, for example, an aluminum alloy. The arm piece 51 has a mounting hole 52. The mounting hole 52 is used for mounting to a positioning device included in the magnetic disk drive. One end of the head support 1 is fixed to the arm piece 51 by, for example, a ball connection structure. Head support 1
Includes a load beam 11 and a flexible body 12. The magnetic head 4 and the FPC 3 are combined with the head support 1 by the combination structure described above.

FIG. 17 is a front view of the HSA according to the present invention, and FIG. 18 is a side view of the HSA shown in FIG. The illustrated HSA comprises a head support 1, a magnetic head 4,
And block 5. The block 5 has a plurality of arm pieces 51. The plurality of arm pieces 51 are sequentially arranged with an interval D1. The arm piece 51 is provided to protrude from the outer peripheral surface of the base 50. The base 50 and the arm piece 51 are integrally formed using a suitable non-magnetic metal material, for example, an aluminum alloy. In the illustrated embodiment, the number of the arm pieces 51 is two, but the number can be increased.

The base 50 is provided with a mounting hole 52 parallel to the direction in which the arm pieces 51 are arranged. Mounting hole 52
Is used for attaching to a positioning device included in a magnetic disk drive. Further, the base 50 is provided with a coil support 53 and a voice coil 54.

The head support 1 is provided for each of the arm pieces 51, and one end is fixed to the arm piece 51 by, for example, a ball connection structure or the like. The head support 1 includes a load beam 11 and a flexible body 12. In the illustrated embodiment,
The head support 1 is provided only on one side of the arm piece 51, but is often provided on both sides of the arm piece 51 when three or more arm pieces 51 are provided.

The magnetic head 4 and the FPC 3 are attached to the other end of each of the head supports 1. The magnetic head 4 and the FPC 3 are combined with each of the head supports 1 by the combination structure described above.

FIG. 19 is a plan view of a magnetic recording / reproducing apparatus according to the present invention. The illustrated magnetic recording / reproducing apparatus includes a magnetic head device 71 and a magnetic disk 72. The magnetic head device 71 shown in FIGS. 3 and 4 or FIG.
6 and FIG. Magnetic head device 71
The one end of the head support 1 is supported by the positioning device 73 and driven. The magnetic head 4 of the magnetic head device 71 is supported by the head support 1 and is arranged so as to face the magnetic recording surface of the magnetic disk 72. As the magnetic head device 71, any of the embodiments described above can be used.

When the magnetic disk 72 is driven to rotate in the direction of arrow F1 by a driving device (not shown), the magnetic head 4 flies above the surface of the magnetic disk 72 by a small flying height. The driving method is rotary. An actuator system is generally used, but a linear actuator system may be adopted. FIG. The magnetic head 4 attached to the tip of the head support 1 is driven in the radial directions C1 and C2 of the magnetic disk 72. Then, the magnetic head 4 is positioned at a predetermined track position on the magnetic disk 72 by the positioning device 73 that rotationally drives the head support 1.

Although the contents of the present invention have been described in detail with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teaching of the present invention. It is self-evident.

[0084]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide a magnetic head device and a magnetic recording / reproducing device capable of avoiding fluctuations in a static attitude angle and a load in an assembling process of the magnetic head device. (B) It is possible to provide a magnetic head device and a magnetic recording / reproducing device capable of avoiding a change in the shape of a slider in a process of assembling the magnetic head device.

[Brief description of the drawings]

FIG. 1 is a perspective view of a magnetic head device according to a first embodiment.

FIG. 2 is an enlarged partial sectional view of a head mounting portion of the magnetic head device shown in FIG.

FIG. 3 is a perspective view of the magnetic head shown in FIGS.

FIG. 4 is an enlarged sectional view of the magnetic head shown in FIG. 3;

FIG. 5 is a partial sectional view showing another embodiment of the magnetic head device according to the present invention.

FIG. 6 shows a wire bonding apparatus provided for obtaining the magnetic head shown in FIGS. 3 and 4.

FIG. 7 is a view for explaining the operation of the wire bonding apparatus shown in FIG. 6;

FIG. 8 is a diagram illustrating an operation subsequent to the operation shown in FIG. 7;

FIG. 9 is a diagram illustrating an operation subsequent to the operation shown in FIG. 8;

FIG. 10 is a diagram illustrating an operation subsequent to the operation shown in FIG. 9;

11 is a diagram illustrating an operation subsequent to the operation shown in FIG.

FIG. 12 is a partial sectional view of a magnetic head device according to a second embodiment.

13 is an FPC 3 included in the magnetic head device of FIG.
It is an expansion perspective view of.

FIG. 14 is a partial sectional view showing still another example of the magnetic head device according to the second embodiment.

FIG. 15 is a front view of the HAA.

FIG. 16 is a side view of the HAA shown in FIG.

FIG. 17 is a front view of the HSA according to the present invention.

FIG. 18 is a side view of the HSA shown in FIG.

FIG. 19 is a plan view of a magnetic recording / reproducing apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head support 2 Slider 3 FPC 4 Magnetic head 6 Metal connection piece 61 Base 62 Linear protrusion

Claims (7)

[Claims] 1. A magnetic head device including a head support and a magnetic head, wherein the head support has a head mounting portion and insulated wiring, and an end electrode of the wiring is provided with the electrode. The magnetic head includes a slider, an extraction electrode, and a metal connection piece, which are exposed near a head attachment portion, wherein the extraction electrode is provided on a side end surface of the slider, and wherein the metal is provided. The connection piece has a linear protrusion, is attached to the extraction electrode, the linear protrusion protrudes from the end face of the slider, and the magnetic head is configured such that the slider is formed of the head support. A magnetic head device fixed to a head attachment portion, wherein the linear protrusion of the metal connection piece is connected to an end electrode of the wiring of the head support by a conductive bonding material. 2. A magnetic head device including a head support, a magnetic head, and a flexible wiring board, wherein the head support has a head mounting portion, and the magnetic head includes a slider. And an extraction electrode, wherein the extraction electrode is provided on a side end surface of the slider, and the slider is fixed to the head mounting portion of the head support, and the flexible wiring board includes an insulating film and , A wiring, and a metal connecting piece, wherein the insulating film has flexibility, and the wiring is embedded in the inside of the insulating film, and an end is provided from one side of the insulating film to the outside. The metal connection piece has a linear protrusion, is attached to the end, the linear protrusion protrudes from the one surface of the insulating film, the flexible wiring board Is the head It is attached to the lifting member,
The magnetic head device wherein the linear protrusion of the metal connection piece is connected to the extraction electrode of the magnetic head by a conductive bonding material. 3. The magnetic head device according to claim 1, wherein the metal connecting piece is made of a wire bonding material. 4. The magnetic head device according to claim 1, wherein the metal connecting piece is made of Au or A.
1 is a magnetic head device. 5. The magnetic head device according to claim 1, wherein the conductive bonding material is a solder. 6. The magnetic head device according to claim 1, wherein the conductive bonding material is a conductive adhesive. 7. A magnetic recording / reproducing apparatus including a magnetic head device and a magnetic disk, wherein the magnetic head device is any one of claims 1 to 6, wherein the magnetic disk is: A magnetic recording and reproducing device for performing magnetic recording and reproduction with the magnetic head device.