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KR890003041B1 - Magnetic poles for magnetic pole vertical magnetic recording - Google Patents

Magnetic poles for magnetic pole vertical magnetic recording Download PDF

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Publication number
KR890003041B1
KR890003041B1 KR1019840002554A KR840002554A KR890003041B1 KR 890003041 B1 KR890003041 B1 KR 890003041B1 KR 1019840002554 A KR1019840002554 A KR 1019840002554A KR 840002554 A KR840002554 A KR 840002554A KR 890003041 B1 KR890003041 B1 KR 890003041B1
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South Korea
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magnetic
core
thin film
leg portion
recording
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KR850000098A (en
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나이 다까시 하다
게이시 나까시마
고우이찌 무가사
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알프스덴기 가부시기 가이샤
가다오까 가쓰다로오
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Magnetic Heads (AREA)

Abstract

내용 없음.No content.

Description

주 자극 여자형 수직자기 기록용 자기헤드Magnetic poles for magnetic pole vertical magnetic recording

제1도는 종래실예를 나타낸 단면도.1 is a cross-sectional view showing a conventional example.

제2(a)도, 제2(b)도, 제2(c)도, 제2(d)도, 제2(e)도는 종래실예의 제조공정을 나타낸 설명도.Fig. 2 (a), Fig. 2 (b), Fig. 2 (c), Fig. 2 (d) and Fig. 2 (e) are explanatory views showing the manufacturing process of the prior art example.

제3도는 본 발명의 일실예를 나타낸 단면도.3 is a cross-sectional view showing an example of the present invention.

제4(a)도, 제4(b)도, 제4(c)도는 본 발명실예의 비자성체의 제조공정을 나타낸 설명도.4 (a), 4 (b) and 4 (c) are explanatory views showing the manufacturing process of the nonmagnetic material of the example of this invention.

제5(a)도, 제5(b)도, 제5(c)도, 제5(d)도는 본 발명실예의 코어부분의 제조공정을 나타낸 설명도이다.5 (a), 5 (b), 5 (c), and 5 (d) are explanatory views showing the manufacturing process of the core part of the example of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

4 : 전자코일 5 : 코어4: electromagnetic coil 5: core

5a : 중앙다리부 5b,5c : 측면다리부5a: center leg 5b, 5c: side leg

6 : 비자성체 7 : 자성박막6: nonmagnetic material 7: magnetic thin film

본 발명은 주 자극 여자형 수직자기 기록용 자기헤드에 관한 것이다.The present invention relates to a magnetic head for main magnetic pole excitation type vertical magnetic recording.

종래의 주 자극 여자형 수직자기 기록용 자기헤드는, 제1도에 나타내는 바와같이, 베이스 필름(1)과 자성층(2)으로 형성된 기록매체(3)를 일측으로부터 기록하는 구성이기 때문에, 자성층(2)에 수직 기록하는 자기헤드로서는 대단히 유효한 것이다. 이자기헤드의 구성은, 연자성재(軟磁性材)로 만들어지는데, 상부에는 전자코일(4)을 설치한 코어(5)와, 이 코어(5) 상부에 고정되는 비자성재로 형성되는 안내체(6)가 고정된다. 상기 코어(5)와 안내체(6)는 한쌍의 성형품을 서로 대향시켜 형성되어 있고, 이들 코어(5)와 안내체(6)의 대향벽에는 자성박막(7)이 설치되어 있다. 그리고, 상기 자기헤드의 제조방법, 제2(a)도 내지 제2(e)도에 나타낸 바와같이 페라이트, 센더스트(sendust), 적층형 퍼어말로이 등의 연자성재(軟磁性材)의 장각봉체(長角棒體)로 형성된 코어재(8)의 상면에 홈(9)을 형성하고 제2(a)도, 다음에 코어재(8)의 상면에 경사(8a)를 형성[제2(b)도]한 다음, 경사(8a)에 맞게 세라믹, 유리, 카아본과 금속재의 복합재료 등의 내마모성을 갖는비자재성로 형성되고 상기 안내체(6)가 되는 평판재(10)를 유리로 접착한다[제2(c)도].In the conventional main magnetic pole excitation type vertical magnetic recording magnetic head, as shown in FIG. 1, since the recording medium 3 formed of the base film 1 and the magnetic layer 2 is recorded from one side, the magnetic layer ( It is very effective as a magnetic head for vertical recording in 2). The magnetic head is made of a soft magnetic material, the upper part of which consists of a core 5 provided with an electromagnetic coil 4 and a guide formed of a nonmagnetic material fixed to the upper part of the core 5. (6) is fixed. The core 5 and the guide 6 are formed so as to face a pair of molded articles, and a magnetic thin film 7 is provided on the opposing walls of the core 5 and the guide 6. Then, as shown in the manufacturing method of the magnetic head, as shown in Figs. 2 (a) to 2 (e), a long rod of soft magnetic material such as ferrite, senddust, laminated furmalloy, etc. A groove 9 is formed in the upper surface of the core material 8 formed of a long shape, and the second (a) also forms an inclined 8a in the upper surface of the core material 8 [second ( b), and then the plate material 10 which is formed of a non-material having abrasion resistance such as ceramic, glass, carbon and metal composite material to be inclined 8a and becomes the guide 6 is made of glass. It adhere | attaches (figure 2 (c)).

그 다음 상기 코어재(8)와 평판재(10)의 접착제(11)의 주 자극이 되는 자성박막(7)을 형성하는 면(12)을 연마하고, 제2(d)도에 나타내는 바와같이 면(12)에, 퍼어말로이, 코발트-지르코늄의 비결정성 자성박막(7)을 증착, 스패터링, 도금, 등에 의해 형성하고, 이 자성박막(7)을 형성한 접착제(11)를 그 상태에서 어니어링 처리를 실시한다.Then, the surface 12 forming the magnetic thin film 7 serving as the main magnetic pole of the adhesive 11 of the core material 8 and the flat plate 10 is polished, and as shown in FIG. 2 (d). On the surface 12, a permalloy, cobalt-zirconium amorphous magnetic thin film 7 is formed by vapor deposition, sputtering, plating, or the like, and the adhesive 11 having the magnetic thin film 7 formed thereon is in that state. The anneal process is performed.

그리고, 상기한 제2(a)도 내지 제2(c)도까지의 가공을 실시한 또 하나의 접착제(13)를 상기 접착제(11)에 접착하고 [제2(e)도], 2점쇄선으로 나타내는 곡면형상으로 상기 안내체(6)가 되는 평판재(10)상면을 연마한 다음, 임의의 두께로 절단(slice)한후, 상기 코어(5)의 홈(9)에 전자코일(4)을 권선하여 자기헤드를 형성시켰었다.Then, another adhesive 13, which has been subjected to the above-mentioned second (a) to second (c) degrees, is adhered to the adhesive 11 [second (e)], the double-dashed line After grinding the upper surface of the plate member 10 to be the guide 6 in a curved shape, and cutting it to a certain thickness, the grooves 9 of the core 5 have an electromagnetic coil 4. Was wound to form a magnetic head.

그러나, 상술한 자기헤드는, 상기한 바와같이 구성시켰기 때문에, 자성박막(7)을 형성시킨 접착제(11)를 그 형태에서 어니일링 처리를 실시할 필요가 있었다.However, since the magnetic head mentioned above was comprised as mentioned above, it was necessary to perform the annealing process in the form with the adhesive agent 11 in which the magnetic thin film 7 was formed.

그러므로 이 어니일링 처리로 인하여 상기 연자성재로 형성되는 코어재(8)의 감자계(減磁界)가 커져서, 자성체 원래의 특성이 나빠지는 결점이 있었다.Therefore, due to this annealing treatment, the potato system of the core material 8 formed of the soft magnetic material becomes large, and there is a drawback that the original characteristics of the magnetic body deteriorate.

그러므로, 본 발명은, 상기한 종래의 결점을 해소할 수 있고, 구성도 간단하며, 또 코어의 감자계도 감소시킬수 있으며, 또한 자기 저항도 비교적 작게할 수 있는 주 자극 여자형 수직자기 기록용 자기헤드를 제공하는데 목적이 있다.Therefore, the present invention can solve the above-mentioned drawbacks, simplify the construction, reduce the potato system of the core, and reduce the magnetic resistance, and can also reduce the magnetic resistance relatively. The purpose is to provide.

상기의 목적을 달성하기 위하여, 본 발명은 중앙다리부(中央脚 )와 측면다리부(側脚)를 갖는 자성재로 형성되는 코어의, 상기 중앙다리부에 전자코일을 설치하고, 이 코어상에 고정되는 비자성체의 중앙부분에 주 자극이 되는 자성박막을 형성하고 중앙다리부 상면에 수직이 되도록 형성하며, 자성박막과 코어의 접합 부분을 넓게한 것을 특징으로 한다.In order to achieve the above object, the present invention is to provide an electromagnetic coil in the core portion of the core formed of a magnetic material having a middle leg portion and a side leg portion, A magnetic thin film which is a main magnetic pole is formed in the central portion of the nonmagnetic material fixed to and is formed to be perpendicular to the upper surface of the central leg, and the junction between the magnetic thin film and the core is widened.

이하 본 발명의 일 실시예를 제3도 내지 제5도에 따라 설명한다.Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 3 to 5.

도면중, 제1도 및 제2도에 사용된 부호와 동일 부호는 동일한 부품 및 부위를 나타낸다.In the drawings, the same reference numerals as used in FIGS. 1 and 2 denote the same parts and parts.

제3도에 나타낸 바와같이, 자기헤드의 구성은, 중앙다리부(5a)와 측면다리부(5b, 5c)를 형성한 코어(5)의 홈(9)에 전자코일(4)을 설치하고, 이 코어상에, 상기 중앙다리부(5a)에 주 자극이 되는 자성박막(7)을 중앙다리부(5a)상면과, 이 중앙다리부(5a)상면과 직각을 이루도록 형성한 비자성재로 형성시킨 안내체(6)를 고정시킨다.As shown in FIG. 3, the magnetic head has a configuration in which the electromagnetic coil 4 is provided in the groove 9 of the core 5 in which the center legs 5a and the side legs 5b and 5c are formed. On this core, a magnetic thin film 7 serving as the main magnetic pole of the center leg portion 5a is formed of a non-magnetic material formed at right angles to the upper surface of the center leg portion 5a and the upper surface of the center leg portion 5a. The formed guide 6 is fixed.

상기 중앙다리부(5a)상면에서 코어(5)와 자성박막(7)은 접합되어 있다. 상기 안내체(6)는 양측이 곡면을 이루도록 하여 기록매체(3)와의 접축을 원활하게 하도록 작용시킨다.The core 5 and the magnetic thin film 7 are joined to the upper surface of the center leg portion 5a. The guide body 6 acts to smoothly contact with the recording medium 3 by making both sides curved.

이와같은 구성의 자기헤드의 제조방법을 설명함다.The manufacturing method of the magnetic head of such a structure is demonstrated.

먼제 제4(a)도 내지 제4(c)도에 나타낸 바와같이, 세라믹, 유리, 카아본재와 금속재의 복하바재료 등의 내마모성을 갖는 비자성재로 형성되고, 상기 안내체(6)가 되는 평판재(10)의 일측면에, 퍼말로이, 코발트-지르코늄의 비결정성 자성박막(7)을 증착, 스패터(spattering)등에 의하여 형성한다[제4(b)도].As shown in FIGS. 4 (a) to 4 (c), it is formed of a non-magnetic material having wear resistance such as ceramic, glass, carbon material and metal bar material. On one side of the flat plate 10, a permalloy, cobalt-zirconium amorphous magnetic thin film 7 is formed by vapor deposition, spattering or the like (FIG. 4 (b)).

그 다음, 자성박막(7)에 상기 평판재(10)와 동일 재질, 동일 형상의 또 하나의 평판재(14)를 유리, 접착제등으로 잡합하고, 상기 자성박막(7)의 하부에, 다시 수평으로 자성박막(7)을 상기한 바와같은 동일 수단으로 형성한다[제4(b)도]. 이 평판재(10), (14)에 자성박막(7)을 형성한 상태에서 어니일링 처리를 실시한다.Then, another plate material 14 of the same material and the same shape and the same shape as the plate material 10 is bonded to the magnetic thin film 7 with glass, an adhesive, and the like, and again below the magnetic thin film 7. The magnetic thin film 7 is formed horizontally by the same means as described above (Fig. 4 (b)). The annealing process is performed in the state in which the magnetic thin film 7 was formed in the flat materials 10 and 14.

한페 제5(a)도에 나타낸 바와같이, 페라이트, 센더스트(sendust), 적층형 퍼어멀로이 등의 연자성재의 각봉체(角棒體)로 형성된 코어재(8)의 상면에 홈을 가공하여 중앙다리부(5c)와 측면다리부(5b), (5c)를 형성하므로서, 중앙다리부(5a)를 양측면 다리부(5b), (5c)보다 약간 낮게하여 양측에 홈(9)을 설치한후, 임의의 폭으로 절단(slice)한다[제5(b)도].As shown in FIG. 5 (a), a groove is formed on the upper surface of the core material 8 formed of each rod body made of soft magnetic material such as ferrite, senddust, and laminated permalloy. By forming leg portions 5c, side leg portions 5b and 5c, the center leg portion 5a is slightly lower than both side leg portions 5b and 5c, and grooves 9 are provided on both sides. Then, the slice is sliced to an arbitrary width (figure 5 (b)).

상기 전단 가공후, 전자코일(4)을 홈(9)에 설치한다[제5(c)도].After the shearing process, the electromagnetic coil 4 is installed in the groove 9 (figure 5 (c)).

이렇게 코어(5)를 형성하고, 코어(5)상면에는코어(5)에 맞게 절단(slice)한 안내체(6)를 유리로 접합한다.In this way, the core 5 is formed, and the guide body 6 sliced to fit the core 5 is bonded to the upper surface of the core 5 with glass.

이러한 접합에 의해서, 비자성체인 안내체(6)의 대략 중앙에 위치하는 자성박막(7)을 코어(5)의 중앙각(5a)상에 위치시키고, 중앙다리부(5a)상면에서 코어(5)와 자성박막(7)이 접합되도록 하여, 코어(5)와의 접합부분을 넓게 한다. 마지막으로 제5(d)도에 2점쇄선으로 나타낸 바와같이 안내체(6)의 양측이 곡면을 이루도록 연마가공을 실시한다.By this bonding, the magnetic thin film 7 located approximately at the center of the guide 6, which is a nonmagnetic material, is placed on the center angle 5a of the core 5, and the core (on the upper surface of the center leg portion 5a) is formed. 5) and the magnetic thin film 7 are bonded to each other, thereby widening the bonding portion with the core 5. Finally, as shown by the dashed-dotted line in FIG. 5 (d), polishing is performed so that both sides of the guide body 6 are curved.

상술한 바와같이, 본 발명의 자기헤드에서는, 주 자극이 되는 자성박막(7)이 비자성체에 설치되어 있기 때문에, 종래와 같이 어니일링 처리에 의해서 구성부품의 자성에 악영향을 미치는 일이 없으며, 또한 코어의 형상, 가공이 간단하며, 칫수 정밀도를 높일 수 있으며, 또한 전체 가동 공정도 감소시킬수가 있어 제조상의 잇점이 많다.As described above, in the magnetic head of the present invention, since the magnetic thin film 7 serving as the main magnetic pole is provided in the nonmagnetic material, the magnetic properties of the component parts are not adversely affected by annealing as in the prior art. In addition, the shape and processing of the core are simple, the dimensional accuracy can be increased, and the overall operation process can be reduced, which has many manufacturing advantages.

또한, 자성박막(7)과 코어(5)와의 접합부분이 넓어지므로 자기 저항도 작아지게 된다.In addition, since the junction between the magnetic thin film 7 and the core 5 is widened, the magnetic resistance is also reduced.

코어(5)의 형상에 관해서는, 상기 실예에 한정되는 것이 아니고, 홈(9)의 형상 또는 일측의 측면다리부(5b)를 없애버리는 등의 변형을 취해도 좋다. 또한 전자코일(4)은, 중앙다리부(5a)에 권산하도록 해도 되고, 본빈(bobbin)에 권선한 것을 중앙다리부(5a)에 삽입 고정하도록 해도 좋다.The shape of the core 5 is not limited to the above embodiment, and may be modified such as removing the shape of the groove 9 or the side leg portion 5b on one side. In addition, the electromagnetic coil 4 may be wound around the center leg portion 5a, or may be inserted into and fixed to the center leg portion 5a by winding the bobbin.

이상 설명한 바와같이, 본 발명에 의하면, 주 자극이 되는 자성박막을 비자성체에 설치하였기 때문에, 어니일링 처리에 의한 코어 감자계의 발생이 없어지고, 또한 코어의 형상, 가공이 간단해지고, 또 중앙다리부 상면에서 코어와 저성박막이 넓게 접합되므로, 자기 저항도 작아지는 등의 뛰어난 효과를 얻을 수 있는 주 자극 여자형 수직자기 기록용 자기헤드를 제공할 수가 있다.As described above, according to the present invention, since the magnetic thin film serving as the main magnetic pole is provided in the nonmagnetic material, generation of the core potato system by the annealing treatment is eliminated, and the shape and processing of the core are simplified, and the center Since the core and the low-thin film are widely bonded on the upper surface of the leg, it is possible to provide a main magnetic pole excitation type vertical magnetic recording magnetic head capable of achieving an excellent effect such as low magnetic resistance.

Claims (1)

중앙다리부(5a)와 측면다리부(5b, 5c)를 갖는 자성체로 형성되는 코어(5)의 중앙다리부(5a)에 전자코일(4)을 설치하고, 상기 코어상에 고정되는 비자성체(6)의 중앙다리부분에, 주 자극이 되는 자성박막(7)을, 중앙다리부 상면과 이 중앙다리부 상면에 수직으로 위치하도록 형성하여, 자성박막과 코어의 접합 부분을 넓게 한 것을 특징으로 하는 주 자극 여자형 수직자기 기록용 자기헤드.The non-magnetic material fixed to the core by installing the electromagnetic coil 4 on the central leg portion 5a of the core 5 formed of a magnetic body having the central leg portion 5a and the side leg portions 5b and 5c. In the center leg portion (6), the magnetic thin film 7 serving as the main magnetic pole is formed so as to be perpendicular to the upper surface of the central leg portion and the upper surface of the middle leg portion, thereby widening the junction between the magnetic thin film and the core. Magnetic stimulation type vertical magnetic recording magnetic head.
KR1019840002554A 1983-06-09 1984-05-11 Magnetic poles for magnetic pole vertical magnetic recording Expired KR890003041B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP?58-101748 1983-06-09
JP58101748A JPS59229717A (en) 1983-06-09 1983-06-09 Magnetic head for main magnetic pole energizing vertical magnetic recording
JP101748 1983-06-19

Publications (2)

Publication Number Publication Date
KR850000098A KR850000098A (en) 1985-02-25
KR890003041B1 true KR890003041B1 (en) 1989-08-19

Family

ID=14308859

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840002554A Expired KR890003041B1 (en) 1983-06-09 1984-05-11 Magnetic poles for magnetic pole vertical magnetic recording

Country Status (2)

Country Link
JP (1) JPS59229717A (en)
KR (1) KR890003041B1 (en)

Also Published As

Publication number Publication date
JPS59229717A (en) 1984-12-24
KR850000098A (en) 1985-02-25

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