KR970008603B1 - Hybrid Magnetic Head - Google Patents

Abstract

None.

Description

Hybrid Magnetic Head

1 and 2 are perspective views showing a magnetic head according to the prior art.

3 to 6 are enlarged plan views showing the tape contact surface of the magnetic head according to the prior art.

Figure 7 (a) is a perspective view showing another magnetic head according to the prior art.

FIG. 7B is an enlarged plan view of the tape contact surface of the magnetic head shown in FIG. 7A.

8A is a perspective view showing a first embodiment of the hybrid magnetic head according to the present invention.

FIG. 8B is an enlarged plan view of the tape contact surface of the hybrid magnetic head shown in FIG. 8A.

9A to 9E are perspective views showing the manufacturing process for forming the first magnetic core member of the hybrid magnetic head according to the present invention shown in FIG. 8A.

10A to 10E are perspective views showing a manufacturing process for forming the second magnetic core member of the hybrid magnetic head according to the present invention shown in FIG. 8A.

FIG. 11 shows a state in which the first and second magnetic core members manufactured by (a) to (9) and (10) and (10) of FIG. 10 are joined to each other. One perspective view.

Fig. 12A is a perspective view showing a second embodiment of the hybrid magnetic head according to the present invention.

FIG. 12B is an enlarged plan view of the tape contact surface of the hybrid magnetic head shown in FIG. 12A.

13A to 13D are perspective views showing the manufacturing process for forming the second magnetic core member of the hybrid magnetic head according to the present invention shown in FIG. 12A.

FIG. 14 shows a state in which the first and second magnetic core members manufactured by (a) to (9) and (13) and (a) to (13) of FIG. Perspective view.

Fig. 15A is a perspective view showing a third embodiment of the hybrid magnetic head according to the present invention.

Fig. 15B is an enlarged plan view showing the tape contact surface of the hybrid magnetic head shown in Fig. 15A.

(A) to (16) of FIG. 16 is a perspective view showing a manufacturing process for forming the second magnetic core member of the hybrid magnetic head according to the present invention shown in (a) of FIG. 15, and

FIG. 17 shows a state in which the first and second magnetic core members manufactured by (9) to (9) and (16) and (16) to (16) of FIG. Perspective view.

* Explanation of symbols for main parts of the drawings

100, 200, 300: composite magnetic head 102, 104, 204, 304: magnetic core member

102a: Parallel planes 106,108,208,308: Ferromagnetic metal thin film

104a: sloped surface 110a, 110b, 210b, 310b: laminated glass

204a: Both sides slope 112: Winding groove

304a: Uneven surface 121,131,231,332: V-shaped groove for track width regulation

130,230,330: Magnetic Ferrite Block

The present invention relates to a magnetic head for magnetic recording and reproducing, and more particularly, a hybrid magnetic head having a complex structure of a parallel head and a non-parallel head to facilitate ripple of the magnetic head and dimensional control of the magnetic head. It is about.

As the recording density of a magnetic tape used as a recording medium for a video tape recorder increases, a magnetic tape having a high residual magnetic flux density and a high coercive force, such as a metal powder, is coated on a nonmagnetic substrate with a binder to form a magnetic recording layer. Magnetic tapes are used a lot. If a magnetic head is used for a metal tape, the magnetic strength of the magnetic gap of the head must be increased due to the high coercive force of the magnetic tape. In addition, as the recording density increases, it is necessary to reduce the track width of the magnetic head. Many magnetic heads have been proposed to satisfy these requirements.

The magnetic head shown in FIG. 1 is designed to have a narrow track width. The magnetic head is sandwiched between the nonmagnetic materials 10, 12 such as glass, and the nonmagnetic materials so that the thickness of the track width It is formed of a ferromagnetic metal thin film 14 having the same thickness. The ferromagnetic metal thin film 14 is made by forming a high permeability alloy such as Sendust (Fe-Al-Si alloy) on the nonmagnetic material 10 by physical vapor deposition such as sputtering.

However, even if the track width can be reduced in this manner, the magnetic flux path is limited only by the metal thin film 14 so that the magnetoresistance increases and the operation efficiency is lowered. In addition, since the metal thin film 14 is formed to have the same thickness as the track width by the physical vapor deposition method, there is a problem in that a manufacturing time of the magnetic head is required.

In addition, since the metal thin film 14 needs to be formed over a large area, the number that can be sputtered by the sputtering device is extremely limited, and thus there is a problem that such a magnetic head cannot be mass produced.

Moreover, the very thin metal film 14 is placed in contact with each other to form a magnetic gap of the magnetic head, thereby lowering the cap size accuracy and operating efficiency.

The conventional magnetic head shown in FIG. 2 is to increase the magnetic strength of the magnetic gap, and a ferromagnetic metal thin film 20 such as sendust is formed on the magnetic gap formation surface of the core member 22 made of ferromagnetic oxide. The core members 22 are joined to each other by the glass 24.

However, although the magnetic resistance of the magnetic head of FIG. 2 made of a composite magnetic material may be lower than that of the head shown in FIG. 1, the ferromagnetic metal thin film 20 is formed in a direction perpendicular to the magnetic flux path, so that the regenerative output is generated by eddy current loss. Will be lowered.

Another gap may be formed between the core member 22 and the ferromagnetic metal thin film 20, thereby deteriorating the operating characteristics of the magnetic head.

A magnetic head having a magnetic gap forming surface inclined with respect to the surface forming the ferromagnetic metal thin film has been proposed. For example, shown in FIG. 3 is an enlarged plan view of the magnetic tape contact surface of the magnetic head described in Japanese Patent Laid-Open No. 58-155513.

The magnetic head shown in FIG. 3 includes core members 30 and 31 formed of Mn-Zn ferrite, and a magnetic gap 32 is formed between the core members 30 and 31. Ferromagnetic metal thin films 35 and 36 such as senddust are stacked on the ferrite protrusions 33 and 34 protruding toward the surface forming the magnetic gap 32. In FIG. 3, reference numeral 37 denotes a glass for bonding. The magnetic gap 32 of the magnetic head is formed by ferromagnetic metal thin films 35 and 36 stacked adjacent to the free ends of the ferrite protrusions 33 and 34.

However, in the magnetic head of FIG. 3 manufactured by using ferromagnetic metal thin films 35 and 36 such as sendust stacked on ferrite protrusions 33 and 34, the ferromagnetic metal thin film on one side (inclined surface) is magnetic flux. The ferromagnetic metal thin films 35 and 36 have high magnetic susceptibility in the path direction but are adjacent to the ferrite protrusions 33 and 34 adjacent to the magnetic gap 32. Therefore, there is a problem that the magnetic recording characteristics of the magnetic head are deteriorated, and thus the reproduction power is also lowered.

In addition, Japanese Patent Laid-Open No. 58-155513 discloses a magnetic head as shown in FIG. 4, whereby the ferromagnetic metal thin film 40 protrudes toward a plane 41 forming a magnetic gap. It is formed only in the both inclined surfaces of the parts 42 and 43, and the corresponding surface of the ferrite parts 42 and 43 is exposed to the plane 41 which forms a magnetic gap. Reference numeral 44 denotes laminated glass.

This magnetic head is manufactured using the ferromagnetic metal thin film 40 formed in the plane 41, and thus does not cause a problem due to the nonuniform thin film structure of FIG. However, since the width of the ferrite portion exposed to the top gap surface is small, the magnetic recording on the magnetic tape having high coercive force is insufficient, resulting in low magnetic recording characteristics and reproduction power.

On the other hand, Japanese Patent Laid-Open No. 60-125909 has proposed a method of providing a metal thin film and an oxide film in a track width regulation groove of a magnetic head using ferrite and filling glass over the oxide film.

5 is an enlarged view of the tape contact surface of the magnetic head proposed in this way. In the magnetic head, ferromagnetic metal thin films 52 such as senders are formed on the core members 50 and 51, and the nonmagnetic glass 54 has a high melting point.

In FIG. 5, reference numeral 56 denotes a glass having a melting point lower than that of the nonmagnetic glass 54. As shown in FIG. Since the magnetic gap 58 of the magnetic head is formed by the ferromagnetic metal thin film portion 52A running parallel to the magnetic flux path, the ferromagnetic metal thin film 52A near the magnetic gap 58 has a uniform film structure. However, since the portion 52B corresponding to the curved portion of the ferromagnetic metal thin film 52 does not have a uniform film structure, the ferromagnetic metal thin film 52 does not have a constant permeability as a whole.

In addition, since the ferromagnetic metal thin film portion 52A must have a film thickness corresponding to the track width, physical deposition such as sputtering slows the lamination rate of the film, and thus, such a magnetic head has a drawback in that it takes much time to manufacture. .

Japanese Laid-Open Patent Publication No. 56-169214 describes a magnetic head having a structure as shown in FIG. 6, whereby the connection surfaces 65 of the magnetic alloy films 61 and 62 and the ferrite portions 63 and 64 are formed. 66 is formed at an acute angle with respect to the opposite surface of the magnetic gap 67 or the surface perpendicular to the relative traveling direction of the magnetic recording medium.

However, in the magnetic head shown in FIG. 6, since the magnetic alloy films 61 and 62 are located opposite to the other portions than the head gap 67, there is a problem that cross-talk occurs. There may also be local wear due to the head gap 67 eccentric to one side of the head chip. Since the magnetic alloy films 61 and 62 are located adjacent to each other, the crystal growth direction of the film 61 does not coincide with the crystal growth direction of the film 62, so that the magnetic gap 67 has uniform magnetic characteristics. There was a problem that could not be.

As a result, in the so-called parallel magnetic heads shown in FIGS. 1 to 6, since the main gap and the pseudo gap of the magnetic head exist in the same phase, the recording / reproducing output by the main gap and the recording / reproducing by the sub-gap The output causes interference, causing ripple in the regenerated output spectrum of the magnetic head, which must be suppressed because it is noise in the head.

As a countermeasure against such ripple, a so-called inclined magnetic head which has a negative gap out of phase with respect to the main gap of the head to improve recording reproduction output is described in Japanese Patent Laid-Open No. 60-229210. It is composed as in (a).

FIG. 7A is a perspective view showing a so-called inclined magnetic head, and FIG. 7B is an enlarged plan view of the tape contact surface of the inclined magnetic head shown in FIG.

This inclined head is composed of core members 70 and 71 made of ferromagnetic oxide such as Mn-Zn ferrite. On the connection surfaces of the core members 70 and 71, a metal thin film 72 made of a high permeability metal alloy or a ferromagnetic metal such as Fe-Al-Si alloy is formed by using physical vapor deposition such as sputtering. The metal thin film 72 is formed continuously from the front gap formation surface to the rear gap formation surface.

The magnetic gap G is formed only by the metal thin film 72. The reinforcing nonmagnetic portions 73 and 74 are formed at cut portions adjacent to the connecting surface and the track width Tw. In addition, a winding groove 75 for winding the coil is provided.

The metal thin film 72 is defined by the inclined surface 70A of the core member 70 and the inclined surface 71A of the core member 71. Therefore, the thin film 72 has a uniform film structure and exhibits a high permeability in the direction of the magnetic flux path in order to improve the recording characteristics of the magnetic head and to increase the reproduction output.

The surface for forming the metal thin film 72 is formed at a predetermined acute angle with respect to the surface for forming the magnetic gap G as shown in FIG. 7B, so that a so-called inclined magnetic head can be formed. The magnetic head configured as described above is useful for high density recording on magnetic tape having high magnetic force and excellent reproducing power because the magnetic gap of the magnetic gap is high.

However, the inclined magnetic head shown in FIGS. 7A and 7B has a problem in that the manufacturing process is very complicated and the track width of the magnetic head cannot be accurately controlled.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to form different shapes of the first and second magnetic core members constituting the magnetic head to completely eliminate ripples during recording and reproduction, and to manufacture It is easy to provide a complex magnetic head which can improve the production yield.

A feature of the hybrid magnetic head according to the present invention for achieving the above object is that a ferromagnetic metal thin film is formed between the mating surfaces of the first magnetic core member and the second magnetic core member to form a magnetic gap. Wherein the portion of the ferromagnetic metal thin film of the first magnetic core member is parallel to the magnetic gap and the ferromagnetic metal thin film of the second magnetic core member is inclined with respect to the magnetic gap to remove the ripple. have.

Hereinafter, preferred embodiments of the hybrid magnetic head according to the present invention will be described in detail with reference to the accompanying drawings.

8A is a perspective view showing a first embodiment of the hybrid magnetic head according to the present invention, wherein the hybrid magnetic head 100 includes first and second magnetic core members made of Mn-Zn ferrite. The first magnetic core member 102 is formed of a ferromagnetic metal thin film 106 having a substantially V shape. The ferromagnetic metal thin film 106 preferably has a high saturation magnetic flux density and a high permeability. The ferromagnetic metal thin film 106 is formed of a Fe-Al-Si alloy (cender), an Fe-based amorphous alloy, a Co-based amorphous alloy, or a Fe-Si-Ru-Ga alloy by physical vapor deposition such as sputtering.

The ferromagnetic metal thin film 106 is formed to a thickness of about 2 ~ 40μm to prevent the saturation of the magnetic field around the gap of the magnetic head 100.

On the other hand, the second magnetic core member 104 is formed with an inclined ferromagnetic metal thin film 108, the ferromagnetic metal thin film 108 is the same material as the ferromagnetic metal thin film 106, that is, Fe-Al-Si It is formed of an alloy, Fe-based amorphous alloy, Co-based amorphous alloy or Fe-Si-Ru-Ga alloy.

The first magnetic core member 102 and the second magnetic core member 104 are joined to each other by nonmagnetic materials such as laminated glass 110a, 110b. One of the first and second magnetic core members 102 and 104, for example, the coil winding groove 112 is formed in the first magnetic core member 102 so that a coil (not shown) is wound.

The surface for forming the ferromagnetic metal thin film 106 of the first magnetic core member 102 is provided with a parallel surface 102a parallel to the surface for forming the magnetic gap G, as shown in (b) of FIG. And the surface for forming the ferromagnetic metal thin film 108 of the second magnetic core member 104 is provided with an inclined surface 104a inclined at a predetermined angle with respect to the surface forming the magnetic gap (G) magnetic head 100 ) Constitutes a magnetic head with a combination of parallel type and inclined type.

The operation of recording and reproducing the magnetic head 100 and the magnetic tape (not shown) will be described.

In Fig. 8A, the main gap is caused by the metal thin film 106 of the first magnetic core member 102, and the minor gap is caused by the metal thin film 108 of the second magnetic core member 104. When recording and reproducing a signal on the tape as the head 100, the ripple signal generated by the first magnetic core member 102 is overwritten in the main gap before the main gap according to the advancing direction of the tape, and in the next step after the main gap Since the ripple signal to be recorded is erased by the main gap, no ripple occurs.

Therefore, the ripple phenomenon that can be caused by the magnetic head can be suppressed as in the related art, thereby minimizing noise of the magnetic head used in the high density magnetic recorder.

In order to clarify the structure of the hybrid magnetic head according to the first embodiment of the present invention, a manufacturing process thereof will be described in detail.

In order to manufacture the composite magnetic head according to the present invention, a plurality of V-shaped grooves 121 are formed in the transverse direction on the upper portion of the first magnetic ferrite block 120 made of a high permeability material such as Mn-Zn ferrite. Let's do it. At this time, as a mechanism to be formed, a rotary grinding machine is preferable.

As shown in FIG. 9A, protrusions having a parallel surface 102a having a width smaller than the track width TW are formed on the gap-forming side of the first magnetic ferrite block 120, and between such adjacent protrusions. V-shaped grooves can be formed.

The magnetic metal thin film 106 having a higher saturation magnetic flux density than the ferrite is formed on the first magnetic ferrite block 120 having the V-shaped groove. The metal thin film 106 is preferably a Fe-Al-Si alloy, an Fe-based amorphous alloy, a Co-based amorphous alloy or a Fe-Si-Ru-Ga alloy.

This magnetic material is deposited on the magnetic ferrite block 120 by about 2 to 40 µm using a thin film formation technique such as sputtering (see (b) of FIG. 9).

After the ferromagnetic metal thin film 106 is coated on the surface, the non-magnetic glass 110a, preferably Sio2, is filled into the V-shaped grooves as shown in FIG.

The glass filled in the V-shaped grooves is wrapped by using a suitable polishing apparatus as shown in (d) of FIG. 9 so as to have a predetermined track width TW. The coil winding groove 112 orthogonal to the V-shaped groove 121 is formed on the surface of the wrapped first magnetic ferrite block 120 at the gap forming side as shown in FIG. One magnetic ferrite block is completed.

Then, a second process as shown in FIG. 10A to FIG. 10E must be performed to complete the second magnetic ferrite block.

In the second step, as shown in FIG. 10A, the second magnetic ferrite block 130 has a predetermined angle with respect to the first surface perpendicular to the surface of the gap forming side and the surface of the gap forming side. A plurality of first saw-shaped grooves 131 having a second inclined surface are formed using a rotary grinding machine.

On the second magnetic ferrite block 130 on which the plurality of saw-shaped grooves 131 are formed, the ferromagnetic metal thin film 108 made of the same material as described in (b) of FIG. 9 is formed by sputtering. As in). Such a ferromagnetic metal thin film is preferably about 2 ~ 40μm coated.

The first sawtooth groove 131 in which the ferromagnetic metal thin film 108 is coated on the surface is filled with laminated glass 110b and polished as shown in FIG. On the gap forming side of the second magnetic ferrite block 130 filled with the non-magnetic glass 110b, a plurality of second sawtooth grooves 132 are adjacent to the first sawtooth groove as shown in FIG. Is formed.

Then, the second saw blade type 132 is filled with non-magnetic glass, and then lapping is performed to complete the second magnetic ferrite block 130 as shown in FIG.

Thus, the first and second ferrites are formed to form branch gaps between edge portions of the ferromagnetic metal thin film formed in the first magnetic ferrite block 120 and the second magnetic ferrite block 130 according to the second process. The blocks are interconnected and integrated as shown in FIG.

Thereafter, the bonded magnetic ferrite blocks are cut along the cutting line C to obtain at least one or more magnetic heads 100.

The magnetic recording medium contact surface of the magnetic head 100 thus obtained is polished in an arc shape to obtain a magnetic head as shown in FIG. 8A. The magnetic head 100 has a parallel structure and an inclined complex structure. Ripple does not occur at all.

FIG. 12A illustrates a second embodiment of the hybrid magnetic head according to the present invention. The same reference numerals as in FIG. Detailed configuration description thereof will be omitted.

The hybrid magnetic head 200 according to this embodiment shown in FIGS. 12A and 12B is a parallel magnetic core member 102 and another parallel type shown in FIG. The magnetic core member 30 is put together. In the magnetic head 200, the main gap is formed by a ferromagnetic metal thin film 106 coated on the parallel surface 102a of the first magnetic core member 102, and the sub gap is formed by the second magnetic core member 204. It is formed by the ferromagnetic metal thin film 208 coated on both inclined surfaces 204a.

In order to clarify the structure of the hybrid magnetic head configured as described above, the manufacturing process thereof will be described in detail.

The first process for the first magnetic core member 102 of the hybrid magnetic head 200 according to the present invention is the same as that shown in (a) to (9) in FIG. 9 and the second magnetic core member. The process for 204, that is, the second process, is slightly different from (a) of FIG. 10 and (e) of FIG.

For the second process, a plurality of V-shaped grooves 231 are formed in the second magnetic ferrite block 230 by using a rotary grinder, such that the inclined both-side inclined surfaces 204a are provided on the top (Thirteenth Step) See also FIG.

On the second magnetic ferrite block 230 in which a plurality of V-shaped grooves 231 are formed, as shown in FIG. 13B, ferromagnetic metals such as sendust, Fe-based amorphous alloys, and Co-based amorphous alloys are formed by sputtering. Filmed. The ferromagnetic metal thin film 208 is preferably coated with about 2 ~ 40μm.

In FIG. 13C, the ferromagnetic metal thin film 208 is filled with a laminated glass 210b in a V-shaped groove coated on the surface thereof, and then polished as shown in FIG. 13D.

As shown in FIG. 14, between the first magnetic ferrite block 120 formed in (e) of FIG. 9 and the corresponding surfaces of the ferromagnetic metal thin films of the second magnetic ferrite block 230 formed in (d) of FIG. The first and second ferrite blocks are bonded to each other to form a magnetic gap G thereon.

The bonded magnetic ferrite blocks are cut along the cut surface C to obtain at least one or more magnetic heads 200.

The contact surface with the magnetic recording medium of the magnetic head 200 thus obtained is polished in an arc shape to obtain a magnetic head as shown in FIG. 12A. The magnetic head has two parallel shapes. It is shaped like a core, but consists of asymmetrics rather than full symmetry. That is, the magnetic gap G formed by the parallel surface 102a of the first magnetic core member 102 and the inclined surfaces 204a of both sides of the second magnetic core member 204 is a compound of parallel and inclined ripples. This does not occur at all and the reproduction output is very excellent.

Fig. 15A shows a third embodiment of the hybrid magnetic head according to the present invention. The same reference numerals as in Fig. 15A through Fig. 8A designate the same parts. Detailed configuration description thereof will be omitted.

As shown in FIGS. 15A and 15B, the hybrid magnetic head 300 according to this embodiment includes a parallel magnetic core member 102 and another parallel magnetic core member ( Since the magnetic core members 102 and 304 are generally parallel to the recovery wrap G, they are formed asymmetrically. In the magnetic head 300, the main gap is formed by the ferromagnetic metal thin film 106 coated on the parallel surface 102a of the first magnetic core member 102, and the sub gap is the uneven surface of the second magnetic core member 304. It will be appreciated that it is formed by the ferromagnetic metal thin film 308 coated on 304a.

In order to more clearly understand the structure of the hybrid magnetic head 300 configured as described above, a manufacturing process thereof will be described in detail.

The first process for the first magnetic core member 102 of the hybrid magnetic head 300 according to the present invention is the same as that shown in (a) to (9) of FIG. 9 but the second magnetic core member. The process for 304, the second process, is entirely different.

In the second step, the second magnetic ferrite block 330 is formed with a plurality of concave-convex surfaces 304a adjacent to each other as shown in FIG. A V-shaped groove 331 is formed between the plurality of uneven surfaces 304a thus formed (see also (B) in FIG. 16).

On the second magnetic ferrite block 330 on which the V-shaped grooves 331 and the uneven surface 304a are formed, a Fe-Al-Si alloy (sender dust) having high saturation magnetic flux density and high permeability, Fe-based amorphous alloy, Co The system amorphous alloy or the Fe-Al-Si-Ga alloy is sputtered to about 2 to 40 µm to form a ferromagnetic metal thin film as shown in FIG.

As shown in (d) of FIG. 16, the V-shaped groove in which the ferromagnetic metal thin film 308 is coated on the surface is filled with laminated glass 310b and then polished as shown in (e) of FIG. The process for the magnetic core member 304 is completed.

As shown in FIG. 17, between the first magnetic ferrite block 120 formed in (e) of FIG. 9 and the corresponding surface of the ferromagnetic metal thin film of the second magnetic ferrite block 330 formed in (e) of FIG. In order to form a magnetic gap (G) in the first and second ferrite blocks 120, 103 are bonded to each other to integrate.

At least one magnetic head 300 may be obtained by cutting the magnetic ferrite blocks thus joined along the cutting line C. FIG.

The magnetic head as shown in Fig. 15A can be obtained by grinding the contact surface with the magnetic recording medium of the magnetic head 300 thus obtained in the form of an arc, which is the magnetic gap G. It has the shape of two parallel cores, but is asymmetric rather than fully symmetrical. That is, the magnetic gap G formed by the parallel surface 102a of the first magnetic core member 102 and the uneven surface 304a of the second magnetic core member 304 is a combination of parallel and uneven shapes. It does not occur at all and the reproduction output characteristics are good.

As described above, according to the hybrid magnetic head according to the present invention, the first magnetic core member forming the main gap is parallel, and the second magnetic core member forming the sub gap has a shape different from that of the first magnetic core member. By making the asymmetrical shape such as the inclined type, it is possible to more effectively suppress the occurrence of the ripple phenomenon than the conventional symmetrical magnetic head and to improve the productivity by easily adjusting the track side compared to the magnetic head manufactured only with the inclined type. It can be effective.

Although the present invention has been described with reference to the accompanying drawings, the present invention is not limited thereto, and many changes and modifications may be made without departing from the scope of the following claims.

For example, when the magnetic core member 102 is a basic type, the magnetic core member joined thereto may be other than those shown in Figs. 8 (a), 12 (a) and 15 (a). .

Claims (10)

In the ferromagnetic metal thin film formed between the mating surfaces of the first magnetic core member and the second magnetic core member, respectively, to form a magnetic gap, a part of the ferromagnetic metal thin film of the first magnetic core member is formed in the magnetic gap. And the ferromagnetic metal thin film of the second magnetic core member is inclined with respect to the magnetic gap to remove the ripple. The surface for forming the ferromagnetic metal thin film of the first magnetic core member has a parallel plane parallel to the magnetic gap and the surface for forming the ferromagnetic metal thin film of the second magnetic core member. And a slanted surface inclined to one side with respect to the magnetic gap. The hybrid magnetic head of claim 2, wherein a parallel surface of the first magnetic core member is formed to be narrower than a track width of the magnetic head. 2. The surface of claim 1, wherein the surface for forming the ferromagnetic metal thin film of the first magnetic core member has a parallel plane parallel to the magnetic gap and the surface for forming the ferromagnetic metal thin film of the second magnetic core member. Has a two-sided inclined surface inclined toward the magnetic gap. 2. The surface of claim 1, wherein the surface for forming the ferromagnetic metal thin film of the first magnetic core member has a parallel plane parallel to the magnetic gap and the surface for forming the ferromagnetic metal thin film of the second magnetic core member. Has a concave-convex surface parallel to the magnetic gap. The hybrid magnetic head of claim 1, wherein each of the first and second magnetic metal thin films has a thickness of 2 to 40 μm. The composite magnetic head of claim 1, wherein each of the first and second magnetic metal thin films is formed of a Fe—Si—Al alloy. The hybrid magnetic head of claim 1, wherein each of the first and second magnetic metal thin films is formed of a Co-based amorphous alloy. The hybrid magnetic head of claim 1, wherein each of the first and second magnetic metal thin films is formed of an Fe-based amorphous alloy. The composite magnetic head of claim 1, wherein each of the first and second magnetic metal thin films is formed of a Fe—Si—Ru—Ga alloy.