JP2002312915A - Magnetic head device, its manufacturing method, and floppy (registered trade mark) disk drive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnetic head device capable of unnecessitating an adhesive and also thinning its thickness. SOLUTION: The magnetic head device is furnished with coil terminals 4a and 5a arranged to confront each other, the tip parts of which are bent to the confronting sides, and an FPC(flexible printed circuit board) 1 having notched parts 1a at the connection parts between the coil terminals 4a and 5a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a magnetic head device and a method of manufacturing the same, and more particularly, to a magnetic head device for a floppy disk and a method of manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a magnetic head device for a floppy disk has been known. FIG. 9 is an exploded perspective view of a conventional magnetic head device for a floppy disk. 10 is an assembled sectional view of the conventional magnetic head device shown in FIG. 9, and FIG. 11 is a bottom view of FIG. Also,
FIG. 12 shows a flexible printed circuit board (hereinafter referred to as F) used in a conventional magnetic head device for a floppy disk.
It is the schematic which showed the positional relationship between pressure sensitive adhesive and PC.

First, an overall configuration of a conventional magnetic head device 110 will be described with reference to FIGS. A conventional magnetic head device 110 includes an FPC 101, a gimbal 102, a back bar (back core) 103,
Reproduction coil 104, erasing coil 105, core assembly (core assembly) 106, and shield ring 10
7 and an adhesive (double-sided tape) 108 provided on the back surface of the FPC 101 for temporary fixing.

The FPC 101 is a flexible synthetic resin sheet (film base) having high insulation properties.
A wiring pattern and a land pattern are printed on the surface of the substrate. The FPC 101 has a coil terminal 104a.
And 105a, the coil terminal holes 10
1a is provided. The inner diameter of the coil terminal hole 101a has such a size that the coil terminals 104a and 105a can be inserted and a slight gap (play) can be formed by inserting the coil terminals. A terminal connection land portion 101b is provided along the outer periphery of the coil terminal hole 101a. The FPC 101 has a land portion 101c for ground connection.
Is provided.

The gimbal 102 is connected to the back bar 10.
3, for holding a magnetic head portion including a recording / reproducing coil 104, an erasing coil 105, a core assembly 106, and a shield ring 107. The recording / reproducing coil 104 has three linearly extending coil terminals 104a, and the erasing coil 105 has two or three linearly extending coil terminals 105a.

Next, a method of manufacturing the conventional magnetic head device 110 will be described with reference to FIGS.

[0007] First, recording and
After mounting the reproducing coil 104 and the erasing coil 105, the back bar 103 is mounted. Then, the core assembly 106 is fixed to the gimbal 102 using an adhesive. Thereby, the coil terminal 104a of the recording / reproducing coil 104 and the coil terminal 105 of the erase coil 105
a slightly protrudes from the opening 102 a provided in the gimbal 102.

Next, the shield ring 107 is fixed to the core assembly 106 and the gimbal 102 using an adhesive.

Next, the coil terminals 104a and 105a
However, the FPC 101 is temporarily fixed to the gimbal 102 with an adhesive (double-sided tape) 108 so that the FPC 101 is inserted into the coil terminal hole 101a of the corresponding FPC 101.
In this case, the FPC 101 is temporarily fixed to the gimbal 102 with an adhesive (double-sided tape) 108 in a state where there is a gap (play) between the coil terminals 104a and 105a and the coil terminal hole 101a. In addition, FPC1
01 to gimbal 102 with adhesive (double-sided tape) 1
FIGS. 10 and 11 show a state temporarily fixed by reference numeral 08.

Then, from the state shown in FIGS. 10 and 11, the coil terminals 104a and 105a and the terminal connection land 101b provided along the coil terminal hole 101a are joined by soldering. FIG.
As shown in FIG.
01c and the gimbal 102 are connected by a conductive paint 109.

[0011]

In the conventional method of manufacturing the magnetic head device 110, as described above, the coil terminal 10
4a and 105a and a hole (play) between the coil terminal hole 101a of the FPC 101, the FPC 1
Since 01 is temporarily fixed to the gimbal 102 with the adhesive 108, there is a disadvantage that the positional accuracy of attaching the FPC 101 to the gimbal 102 is deteriorated. When the accuracy of the position where the FPC 101 is attached is deteriorated,
It is necessary to remove the PC 101 and re-attach it. For this reason, there is a problem that productivity is deteriorated and parts are deformed by a force applied when the FPC 101 is peeled off.

Further, in the conventional method of manufacturing the magnetic head device 110, since the adhesive 108 is required for temporary fixing, the number of parts is increased and the manufacturing process is complicated. . Further, since the height of the magnetic head device 110 is increased by the thickness of the adhesive 108, there is also a problem that it is difficult to reduce the thickness of the magnetic head device 110. Further, since the coil terminals 104a and 105a have a shape extending linearly, they protrude downward after soldering as shown in FIG. Also in this respect, it is difficult to reduce the thickness of the magnetic head device 110.

Conventionally, as a method for reducing the thickness, a technique for preventing the coil terminals from projecting from the back surface of the FPC is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 7-210846. However, even in the disclosed conventional method, since the adhesive is used for temporarily fixing the FPC and the gimbal, the number of parts increases, the manufacturing process becomes complicated, and the problem of the adhesive is increased. The problem that the height of the magnetic head is increased by the thickness is not solved. In the disclosed conventional method, a gap (play) is formed between the coil terminal and the coil terminal hole.
Therefore, similarly to the conventional magnetic head device shown in FIG. 9, there is a problem that the positional accuracy of the FPC is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a magnetic head device capable of eliminating the need for an adhesive and achieving a reduction in thickness. To provide.

Another object of the present invention is to improve the positional accuracy of a connection substrate such as an FPC in the above magnetic head device.

Still another object of the present invention is to provide a method of manufacturing a magnetic head device capable of eliminating the need for an adhesive and reducing the thickness.

[0017]

According to a first aspect of the present invention, there is provided a magnetic head device comprising: a magnetic head portion including a coil having a coil terminal disposed to face and having a tip bent toward the opposite side; A connection substrate connected to the coil terminal and having a cutout portion at a connection portion with the coil terminal.

According to the first aspect of the present invention, as described above, the distal end is provided with the coil terminal bent to the opposite side and the connection substrate having the notch at the connection with the coil terminal. The notch corresponding to the connection substrate is stably temporarily fixed by the coil terminal having the bent portion. This eliminates the need for an adhesive that has been conventionally used for temporarily fixing the coil terminals and the connection substrate. as a result,
The number of parts can be reduced, and the manufacturing process can be simplified. Further, the thickness can be reduced by the thickness of the unnecessary adhesive and the bent end of the coil terminal.

According to a second aspect of the present invention, in the magnetic head device according to the first aspect, the distance between the coil terminals disposed opposite to each other is formed so as to be equal to or less than the interval between the notches. . According to the second aspect of the present invention, since the coil terminal and the cutout portion are temporarily fixed in a state where they are in contact with each other without a gap, the mounting position of the connection substrate with respect to the coil terminal can be accurately determined. it can. As a result, the mounting position accuracy of the connection board can be improved.

According to a third aspect of the present invention, in the magnetic head device according to the second aspect, the cutout portion of the connection substrate is fixed between the coil terminals disposed to face each other in a state of being bent by a predetermined amount. According to the third aspect of the present invention, since the notch portion of the connection substrate is brought into contact with the coil terminal while being pressed by the above configuration, the mounting position of the connection substrate with respect to the coil terminal is accurately determined. The connection substrate can be temporarily fixed stably. As a result, the mounting position accuracy of the connection board can be improved.

According to a fourth aspect of the present invention, in the magnetic head device according to any one of the first to third aspects, the cutout portion is provided at an outermost side of a connection portion between the connection substrate and the coil terminal. According to the fourth aspect of the present invention, with such a configuration, the connection substrate is provided in comparison with a case where a hole for connection with the coil terminal is provided inside the outermost side of the connection portion with the coil terminal of the connection substrate. The width of the outermost side of the connection portion with the coil terminal can be reduced. As a result, the size of the connection substrate can be reduced.

According to a fifth aspect of the present invention, in the magnetic head device according to any one of the first to fourth aspects, the coil terminal and the notch are joined by one of a solder and a conductive adhesive. According to the fifth aspect, with such a configuration, the coil terminal and the notch can be firmly fixed while maintaining the electrical connection state.

According to a sixth aspect of the present invention, in the magnetic head device according to any one of the first to fifth aspects, the connection board includes a flexible printed circuit board. In the sixth aspect, the same effects as those of the first to fifth aspects can be obtained even when the flexible printed circuit board is used as the connection substrate.

According to a seventh aspect of the present invention, in the magnetic head device according to any one of the first to sixth aspects, the magnetic head portion is further joined to a plate-shaped slider and the plate-shaped slider to transmit electromagnetic waves from outside. A ring-shaped shield ring having a shield function of blocking and a sidewall function of the slider is included. According to the seventh aspect, as described above, the shield ring is configured to have a shield function as a normal shield ring for blocking electromagnetic waves from the outside and a function as a side wall portion of the slider. Can also serve as the side wall portion of the slider, so that the slider can be formed in a plate shape without the side wall portion. Thus, the structure of the slider can be simplified.

An eighth aspect of the present invention provides a floppy disk drive device including the magnetic head device according to any one of the first to seventh aspects, and a drive unit for rotating the floppy disk. According to the eighth aspect of the present invention, the number of parts can be reduced by such a configuration.
It is possible to provide a floppy disk drive device including a magnetic head device capable of simplifying a manufacturing process and reducing the thickness.

According to a ninth aspect of the present invention, there is provided a method of manufacturing a magnetic head device, comprising the steps of: connecting a coil terminal between coil terminals of a magnetic head portion including a coil having a coil terminal whose tip is bent inward; Mounting a connection board having a notch in the portion, a step of temporarily fixing the corresponding notch of the connection board to the coil terminal, and a step of joining the coil terminal and the notch I have.

According to the ninth aspect of the present invention, the cut-out portion of the connection board is stably temporarily fixed by the coil terminal having the bent end portion. This eliminates the need for an adhesive that has been conventionally used for temporarily fixing the coil terminals and the connection substrate. As a result, the number of parts can be reduced, and the manufacturing process can be simplified. Further, it is possible to easily manufacture a magnetic head device which is reduced in thickness by the thickness of the unnecessary adhesive and the bent end portion of the coil terminal.

According to a tenth aspect of the present invention, in the manufacturing method of the ninth aspect, the step of mounting the connection substrate includes the step of mounting the connection substrate with no gap between the cutout portion of the connection substrate and the coil terminal. , Between the coil terminals arranged oppositely,
A step of fitting the corresponding notches is included. According to the tenth aspect, with this configuration, the mounting position of the connection substrate with respect to the coil terminal can be accurately determined. As a result, the mounting position accuracy of the connection board can be improved.

In the method of manufacturing a magnetic head device according to the present invention, the step of mounting the connection substrate may include the step of mounting the connection substrate between the coil terminals facing each other while the connection substrate is bent. A step of fitting the corresponding notches is included. According to the eleventh aspect, by such a configuration, the notch portion of the connection substrate is temporarily fixed in a state of being pressed by the coil terminal, so that the mounting position of the connection substrate with respect to the coil terminal is accurately positioned. Thus, the connection substrate can be stably temporarily fixed. As a result, it is possible to easily manufacture a magnetic head device in which the mounting position accuracy of the connection substrate is improved.

According to a twelfth aspect of the present invention, in the method for manufacturing a magnetic head device according to any one of the ninth to eleventh aspects, the connection substrate includes a flexible printed circuit board. According to the twelfth aspect, even when the flexible printed circuit board is used as the connection board, the ninth to the ninth aspects are also applicable.
The same effect as in the eleventh embodiment can be obtained.

A method of manufacturing a magnetic head device according to a thirteenth aspect of the present invention is the method according to any one of the ninth to twelfth aspects, further comprising the step of forming a magnetic head portion, wherein the step of forming the magnetic head portion comprises A step of joining a ring-shaped shield ring having a shield function of blocking electromagnetic waves from outside and a side wall function of the slider to the slider, and a tip portion bent inward on the upper surface of the slider surrounded by the shield ring Mounting a coil having a coil terminal. According to the thirteenth aspect, the shield ring having a shield function as a normal shield ring for blocking electromagnetic waves from the outside and a function as a side wall portion of the slider is configured to be joined to the slider. Since the shield ring can also serve as the side wall of the slider, the slider can be formed in a plate shape without the side wall. Thus, the structure of the slider can be easily simplified.

[0032]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is an exploded perspective view of a magnetic head device according to a first embodiment of the present invention. FIG.
FIG. 3 is a sectional view of a state in which the magnetic head device of the first embodiment shown in FIG. 1 is assembled, and FIG. 3 is a bottom view of FIG. 2 viewed from below. FIG. 4 is an enlarged sectional view of a portion A shown in FIG. FIG. 5 is a schematic diagram showing the FPC (flexible printed circuit board) of the first embodiment shown in FIG.

First, the overall configuration of the magnetic head device 10 according to the first embodiment of the present invention will be described with reference to FIG. The magnetic head device 10 according to the first embodiment includes an FPC 1
, A gimbal 2, a back bar (back core) 3, a recording / reproducing coil 4, an erasing coil 5, a core assembly (core assembly) 6, and a shield ring 7. The FPC 1 is an example of the “connection board” of the present invention. The gimbal 2 is for holding a magnetic head portion including a back bar 3, a recording / reproducing coil 4, an erasing coil 5, a core assembly 6, and a shield ring 7. The recording / reproducing coil 4 has three coil terminals 4a, and the erasing coil 5 has two or three coil terminals 5a.

Here, the magnetic head device 1 of the first embodiment
At 0, the coil terminal 4a of the recording / reproducing coil 4 and the coil terminal 5a of the erasing coil 5 are arranged so as to face each other, and the front ends thereof are bent to the opposite side (inward). The coil terminals 4a and 5a are bent inward so as to have an inclination of about 10 ° to about 80 ° with respect to the vertical direction. In the first embodiment, the FPC
A portion corresponding to one of the coil terminals 4a and 5a is provided with a semicircular cutout 1a. The notches 1a are provided on both outermost sides of the FPC 1. A terminal connection land 1b is provided along the semicircular cutout 1a. Also,
The FPC 1 is provided with a ground connection land 1c.

The interval between the roots of the opposing portions of the coil terminals 4a and 5a is formed to be equal to or shorter than the shortest distance between the notches 1a provided on both sides of the FPC 1. I have.

FIGS. 6 and 7 are schematic views for explaining the manufacturing process of the magnetic head device according to the first embodiment of the present invention. Next, a manufacturing process of the magnetic head device 10 according to the first embodiment will be described with reference to FIGS.

First, referring to FIG. 1, the recording / reproducing coil 4 and the erasing coil 5 are mounted on the core assembly 6 and the back bar 3 is mounted. Then, the core assembly 6 is fixed to the gimbal 2 using an adhesive.
Thereby, the coil terminal 4a of the recording / reproducing coil 4 and
The coil terminal 5a of the erasing coil 5 slightly projects from the opening 2a provided in the gimbal 2.

Next, the shield ring 7 is fixed to the core assembly 6 and the gimbal 2 using an adhesive.

Next, the notch 1a of the FPC 1 is fitted between the coil terminals 4a and 5a protruding from the gimbal 2. Details of the fitting step will be described below with reference to FIGS.

First, as shown in FIG. 6, a narrow portion of the FPC 1 is disposed between the inwardly bent coil terminals 4a and 5a disposed so as to protrude from the opening 2a of the gimbal 2. Then, by moving the FPC 1 in the direction of the arrow shown in FIG. 7 (the direction parallel to the gimbal 2), the notch 1a of the FPC 1 is fitted into the corresponding coil terminals 4a and 5a. This fitted state is shown in FIGS.

Here, as described above, the interval between the roots of the opposing portions of the coil terminals 4a and 5a is equal to or shorter than the shortest distance between the notches 1a provided on both sides of the FPC 1. It is formed so that it becomes. For this reason, as shown in FIG. 3, when the notch 1a of the FPC 1 is fitted into the coil terminals 4a and 5a, there is no gap between the coil terminals 4a and 5a and the notch 1a. The distance between the coil terminals 4a and 5a is FPC
2 is smaller than the distance between the notches 1a of FIG.
As shown in (1), the FPC 1 is temporarily fixed between the coil terminals 4a and 5a in a state where the FPC 1 is slightly bent downward.

After the temporary fixing as described above, the notch 1
The terminal connection land portion 1b provided along the line a and the coil terminals 4a and 5a are fixed by soldering. Also, the ground connection land 1c of the FPC 1 and the gimbal 2
And are connected by a conductive paint 8. In this way,
The magnetic head device 10 according to the first embodiment is completed.

Using the magnetic head device 10 of the first embodiment to record information on a floppy disk,
The information is read from the floppy disk, and the information recorded on the floppy disk is erased. The floppy disk drive device is formed by assembling the magnetic head device 10 of the first embodiment assembled as described above together with a drive mechanism for rotating the floppy disk and known components.

In the first embodiment, as described above, the coil terminals 4a and 5a whose front ends are bent to the opposite side (inside) and the F terminals corresponding to the coil terminals 4a and 5a.
By providing the notch 1a disposed on the PC1, the corresponding notch 1a of the FPC1 is provided on the coil terminals 4a and 5a whose distal ends are bent to the opposite sides.
Is mounted, the corresponding notched portions 1a of the FPC 1 are stably temporarily fixed by the coil terminals 4a and 5a whose distal ends are bent. This eliminates the need for an adhesive (double-sided tape) conventionally used for temporary fixing, so that the number of components can be reduced and the manufacturing process can be simplified. In addition, the thickness of the unnecessary adhesive and the coil terminals 4a and 5
The thickness can be reduced by an amount corresponding to the bending of the tip end of “a”.

The thickness of the magnetic head device 10 according to the first embodiment is reduced by the thickness of the adhesive (about 0.02 mm to about 0.1 mm) and the bending of the tip ends of the coil terminals 4a and 5a. (About 0.01 mm to about 0.6 mm) and the total amount (about 0.03 mm to about 0.7 mm).

In the first embodiment, the distance between the coil terminals 4a and 5a which are arranged to face each other is
a, the coil terminals 4a and 5a and the notch 1a are temporarily fixed in a state where they are in contact with each other without any gap, so that the coil terminals 4a and 5a , The mounting position of the FPC 1 can be accurately determined. As a result, the mounting position accuracy of the FPC 1 can be improved.

Further, the notch 1a of the FPC 1 is
1, the width W of the FPC 1 is provided.
1 (see FIG. 5) is changed to the width W2 (FIG. 1) of the conventional FPC 101.
2) can be reduced. Thereby, the size of the FPC 1 can be reduced.

(Second Embodiment) FIG. 8 is an exploded perspective view of a magnetic head device according to a second embodiment of the present invention. FIG.
, The second embodiment has a core assembly and a shield ring structure different from those of the first embodiment. The other configuration of the second embodiment is the same as that of the first embodiment. The details will be described below.

The magnetic head device 2 according to the second embodiment
At 0, the core assembly (core assembly) 16 includes a plate-like slider 16a and a front core 16b fitted into the slider 16a. Slider 16
a is made of a ceramic material such as TiCa, and is formed by injection molding. Further, the back surface of the sliding surface of the slider 16a and the opening surface thereof are joined, and a shield ring 17 made of Ni-Zn or Mn-Zn ferrite is provided. The outer dimensions of the opening surface of the shield ring 17 are formed to be substantially equal to the outer dimensions of the back surface of the sliding surface of the slider 16a.

Here, in the second embodiment, the shield ring 17 has both a function as a normal shield ring for blocking electromagnetic waves from the outside and a function as a side wall portion of the slider 16a.

In the second embodiment, as described above, the shield ring 17 is configured to have both a function as a normal shield ring for blocking electromagnetic waves from the outside and a function as a side wall portion of the slider 16a. Thereby, as compared with the first embodiment, the core assembly 16
Can be simplified. That is, the core assembly 6 of the first embodiment has a complicated structure integrally including the side wall portion of the slider, while the shield ring 17 also functions as the side wall portion in the second embodiment. 16 can be formed in a plate shape without a side wall portion. Thereby, the structure of the core assembly 16 can be simplified.

It should be noted that the embodiment disclosed this time is an example in all respects and is not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description of the embodiments, and includes all modifications within the scope and meaning equivalent to the terms of the claims.

For example, in the above-described embodiment, an example is shown in which the FPC (flexible printed circuit board) 1 is used as a connection board for connecting to the coil terminals 4a and 5a, but the present invention is not limited to this, and other than the FPC, Similar effects can be obtained when a connection substrate is used.

In the above embodiment, the coil terminals 4a
When fitting the notch 1a of the FPC1 into the FPC1 and 5a, as shown in FIGS. 6 and 7, after arranging the narrow portion of the FPC1 between the coil terminals 4a and 5a,
Although the fitting is performed by moving the gimbal 2 in a direction parallel to the gimbal 2, the present invention is not limited to this.
The portion where the notch 1a of the FPC 1 is formed is bent in the width direction to shorten the width W1, and the FPC 1 is fitted between the coil terminals 4a and 5a from a direction perpendicular to the gimbal 2 in a state. Good.

Further, in the above embodiment, the shape of the cutout portion 1a of the FPC 1 is a semicircular shape. However, the present invention is not limited to this, and the same effect can be obtained even with another cutout shape. Can be.

In the above embodiment, the coil terminals 4a
And 5a and the terminal connection land portion 1b provided along the notch portion 1a are joined using solder, but the present invention is not limited to this, and a joining member other than solder may be used. . For example, a conductive adhesive may be used.

[0058]

As described above, according to the present invention, the adhesive which has been conventionally used for temporarily fixing the coil terminal and the connection substrate is not required, so that the number of parts can be reduced. At the same time, the manufacturing process can be simplified. Further, the thickness can be reduced by the thickness of the unnecessary adhesive and the bent end of the coil terminal.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a magnetic head device according to a first embodiment of the present invention.

FIG. 2 is an assembled sectional view of the magnetic head device according to the first embodiment shown in FIG. 1;

FIG. 3 is a bottom view of the magnetic head device according to the first embodiment shown in FIG. 2;

FIG. 4 is an enlarged sectional view of a portion A of the magnetic head device according to the first embodiment shown in FIG. 2;

FIG. 5 is a schematic view showing an FPC according to the first embodiment shown in FIG. 1;

FIG. 6 is a schematic diagram for explaining the manufacturing process of the magnetic head device according to the first embodiment of the present invention.

FIG. 7 is a schematic diagram for explaining the manufacturing process of the magnetic head device according to the first embodiment of the present invention.

FIG. 8 is an exploded perspective view of a magnetic head device according to a second embodiment of the present invention.

FIG. 9 is an exploded perspective view of a conventional magnetic head device.

10 is an assembled sectional view of the conventional magnetic head device shown in FIG.

FIG. 11 is a bottom view of the conventional magnetic head device shown in FIG.

12 is a schematic diagram showing a positional relationship between the conventional FPC shown in FIG. 9 and an adhesive.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 FPC (flexible printed circuit board: connection board) 1a Notch 1b Terminal connection land 2 Gimbal 4 Recording / playback coil 4a Coil terminal 5 Erasing coil 5a Coil terminal 8 Conductive paint 10, 20 Magnetic head device 16 Core Assembly (core assembly) 16a Slider 16b Front core 17 Shield ring

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D039 AA01 BA02 BB04 DA04 5D042 NA03 PA10 TA07 5D093 AA04 AC07 AC14 AD13 AE01 EA06 EA09 EB01 EC07

Claims (13)

[Claims] A magnetic head portion including a coil having a coil terminal disposed opposite to and having a distal end bent toward the opposite side; a magnetic head portion connected to the coil terminal and connected to the coil terminal; A magnetic head device comprising: a connection substrate having a notch. 2. The magnetic head device according to claim 1, wherein a distance between the coil terminals arranged opposite to each other is formed so as to be equal to or less than a distance between the notches. 3. The magnetic head device according to claim 2, wherein the cutout portion of the connection substrate is fixed between the opposed coil terminals in a state of being bent by a predetermined amount. 4. The magnetic head device according to claim 1, wherein the cutout portion is provided on an outermost side of a connection portion of the connection substrate with the coil terminal. . 5. The coil terminal and the notch portion,
The magnetic head device according to claim 1, wherein the magnetic head device is joined by one of a solder and a conductive adhesive. 6. The magnetic head device according to claim 1, wherein the connection substrate includes a flexible printed circuit board. 7. The magnetic head unit further comprises: a plate-shaped slider; and a ring-shaped shield joined to the plate-shaped slider and having a shield function of blocking electromagnetic waves from the outside and a side wall function of the slider. The magnetic head device according to claim 1, further comprising a ring. 8. A floppy disk drive device comprising: the magnetic head device according to claim 1; and driving means for rotating a floppy disk. 9. A connection having a notch at a connection portion with the coil terminal, between the coil terminals of the magnetic head portion including a coil having a coil terminal whose tip is bent inward and opposed to each other. Magnetic head device, comprising: a step of temporarily fixing a corresponding cutout portion of the connection substrate to the coil terminal by mounting a substrate for connection; and a step of joining the coil terminal to the cutout portion. Manufacturing method. 10. The step of mounting the connection substrate, wherein the gap is formed between the opposed coil terminals in a state where there is no gap between the cutout portion of the connection substrate and the coil terminals.
The method of manufacturing a magnetic head device according to claim 9, further comprising a step of fitting the corresponding notches. 11. The step of mounting the connection substrate includes a step of fitting the corresponding cutouts between the coil terminals disposed opposite to each other in a state where the connection substrate is bent. Item 11. The method for manufacturing a magnetic head device according to Item 10. 12. The method according to claim 9, wherein the connection substrate includes a flexible printed circuit board. 13. The step of forming the magnetic head section, the step of forming the magnetic head section comprises: providing a plate-shaped slider with a shielding function of blocking electromagnetic waves from outside and a side wall function of the slider. Joining a ring-shaped shield ring having; and an upper surface of the slider surrounded by the shield ring,
The method of manufacturing a magnetic head device according to claim 9, further comprising: mounting a coil having a coil terminal whose tip portion is bent inward.