KR0179517B1 - Magnetic head - Google Patents
Magnetic head Download PDFInfo
- Publication number
- KR0179517B1 KR0179517B1 KR1019950060992A KR19950060992A KR0179517B1 KR 0179517 B1 KR0179517 B1 KR 0179517B1 KR 1019950060992 A KR1019950060992 A KR 1019950060992A KR 19950060992 A KR19950060992 A KR 19950060992A KR 0179517 B1 KR0179517 B1 KR 0179517B1
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- KR
- South Korea
- Prior art keywords
- magnetic head
- magnetic
- insulating film
- stacked
- film
- Prior art date
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Classifications
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
-
- 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
- G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
본 발명은 적층형 자기헤드에 관한 것이다. 특히 두 적층 코아부재가 동일한 구조로 결합된 자기헤드에 있어서, 적층코아의 상,하는 비자성 세라믹 기판이 형성되고, 이 두 비자성 세라믹 기판사이에 금속자성막과 DLC 절연막이 소정 횟수 차례로 형성된 구조이다. 따라서, 자기헤드에서 발생하는 와전류의 손실을 줄일 수 있고, 자기테이프의 주행시에도 편마모를 예방할 수 있는 효과가 있다.The present invention relates to a stacked magnetic head. In particular, in a magnetic head in which two stacked core members are joined in the same structure, a top and bottom nonmagnetic ceramic substrates of the stacked cores are formed, and a metal magnetic film and a DLC insulating film are sequentially formed a predetermined number of times between the two nonmagnetic ceramic substrates. to be. Therefore, it is possible to reduce the loss of eddy current generated in the magnetic head, and to prevent uneven wear even when the magnetic tape is running.
Description
제1도 (a)는 종래 자기헤드의 평면도.1A is a plan view of a conventional magnetic head.
(b)는 종래 자기헤드의 구조를 보인 사시도.(b) is a perspective view showing the structure of a conventional magnetic head.
제2도 (a)는 본 발명에 따른 자기헤드의 평면도.2 is a plan view of a magnetic head according to the present invention.
(b)는 본 발명에 따른 자기헤드의 구조를 보인 사시도이다.(b) is a perspective view showing the structure of a magnetic head according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1a∼1b : 비자성 세라믹 기판 2a∼2b : 금속자성막1a to 1b: nonmagnetic ceramic substrate 2a to 2b: metal magnetic film
3a∼3c : 비자성 절연막 4 : 종래의 적층코아3a to 3c: nonmagnetic insulating film 4: conventional laminated core
5a∼5c : DLC 절연막 6 : 본 발명에 따른 적층코아5a to 5c DLC insulating film 6: Laminated core according to the present invention
본 발명은 자기헤드에 관한 것으로서, 더욱 상세하게는 적층코아가 DLC와 같은 비자성 절연막을 금속자성막 사이에 형성시켜 금속적층막의 편마모를 방지하는 적층형 자기헤드에 관한 것이다.The present invention relates to a magnetic head, and more particularly, to a laminated magnetic head in which a laminated core forms a nonmagnetic insulating film such as DLC between metal magnetic films to prevent uneven wear of the metal laminated film.
제1도 (a)(b)는 종래 자기헤드의 구조를 보인 자기헤드로서 부호 1a∼1b는 비자성 세라믹 기판이고, 2a∼2d는 금속 자성막이고, 3a∼3c는 Sio2, Hl2o3 유리와 같은 절연막이고, 4는 적층코아이다.FIG. 1 (a) (b) is a magnetic head showing the structure of a conventional magnetic head, in which numerals 1a to 1b are nonmagnetic ceramic substrates, 2a to 2d are metal magnetic films, and 3a to 3c are made of Sio2, Hl2o3 glass 4 is a laminated core.
여기서 제1도 (a)(b)를 참조하면 종래의 자기헤드는 자기헤드의 자기갭에 수직으로 또한 트랙과 동일한 폭으로 3개의 비자성 절연막(3a∼3c)과 이 3개의 비자성 절연막(3a∼3c)을 상,하로 감싸는 4개의 금속 자성막(2a∼2d)이 형성되었고, 그외 부분은 비자성 세라믹 기판(1a,1b)으로 구성된 것이다.Referring to FIGS. 1A and 3B, the conventional magnetic head includes three nonmagnetic insulating films 3a to 3c and three nonmagnetic insulating films perpendicular to the magnetic gap of the magnetic head and the same width as the track. Four metal magnetic films 2a to 2d are formed to surround 3a to 3c up and down, and the other part is composed of nonmagnetic ceramic substrates 1a and 1b.
여기서, 금속자성막(2a∼2d)과 비자성 절연막(3a∼3c)은 일종의 적층체로서 이는 비자성 세라믹 기판(1a,1b)상에 스퍼터링 방법에 의해 소정 두께로 형성시킨다.Here, the metal magnetic films 2a to 2d and the nonmagnetic insulating films 3a to 3c are a kind of laminate, which are formed on the nonmagnetic ceramic substrates 1a and 1b by a sputtering method to a predetermined thickness.
이와 같은 구조의 종래의 자기헤드는 금속재생막을 사용하여 페라이트 헤드에 비해 강한 기록자계를 발생시키고, 그 보자력 매체에 대해서도 충분한 기록 능력이 있다.The conventional magnetic head having such a structure generates a stronger recording magnetic field than the ferrite head by using a metal regeneration film, and has a sufficient recording capability even on the coercive force medium.
또한, 금속자성막(2a∼2d) 상호간에 비자성 절연막(3a∼3c)을 통한 절연 구조로 와전류 손실이 절감된다. 그러나 이와 같은 종래 자기헤드는 자기헤드의 연마가공시나 자기테이프가 자기헤드에 슬라이딩될 때 접촉면의 금속적층코아 부위가 쉽게 편마모되고, 이에 따라 스페이싱 로스(Spacing Loss)에 의한 기록 재생효율이 떨어지는 문제점이 있었다.In addition, the eddy current loss is reduced by the insulating structure through the nonmagnetic insulating films 3a to 3c between the metal magnetic films 2a to 2d. However, such a conventional magnetic head has a problem that metal lamination cores of the contact surface are easily worn out during polishing of the magnetic head or when the magnetic tape is slid to the magnetic head, thereby reducing the recording and reproducing efficiency due to spacing loss. there was.
본 발명은 이와 같은 문제점을 감안하여 안출한 것으로서, 높은 비저항을 갖는 DLC 절연막을 적층코아의 절연막으로 사용함으로써 자기테이프의 주행에 의한 편마모를 방지하는 자기헤드를 제공함을 그 목적으로 한다.The present invention has been made in view of the above problems, and an object thereof is to provide a magnetic head which prevents uneven wear caused by traveling of a magnetic tape by using a DLC insulating film having a high specific resistance as an insulating film of a laminated core.
상기와 같은 목적을 달성하기 위한 본 발명은, 제1비자성 세라믹 기판위에 소정 횟수로 금속자성막 및 절연막을 차례로 형성시키고, 다시 제2비자성 세라믹기판을 형성시킨 제1적층 코아부재와, 상기 제1적층 코아부재와 같은 구조의 제2적층 코아부재가 자기헤드의 갭을 중심으로 서로 결합된 자기헤드에 있어서, 상기 절연막은 DLC 절연막인 것을 특징으로 한다.The present invention for achieving the above object, the first laminated core member in which a metal magnetic film and an insulating film are sequentially formed on the first non-magnetic ceramic substrate a predetermined number of times, and a second non-magnetic ceramic substrate is formed again; In a magnetic head in which a second stacked core member having the same structure as the first stacked core member is coupled to each other around a gap of the magnetic head, the insulating film is a DLC insulating film.
이하, 제2도 (a)(b)를 참고로 하여 본 발명에 따른 구성 및 실시예를 설명한다.Hereinafter, the configuration and the embodiment according to the present invention will be described with reference to FIGS.
제2도 (a) 및 (b)는 본 발명에 따른 자기헤드의 구조를 보인 평면도와 사시도로서, 부호 1a∼1b는 비자성 세라믹 기판이고, 2a∼2b는 금속자성막이고, 5a∼5c는 절연막이고, 6은 본 발명에 따른 적층코아이다.2 (a) and 2 (b) are a plan view and a perspective view showing the structure of a magnetic head according to the present invention, wherein 1a to 1b are nonmagnetic ceramic substrates, 2a to 2b are magnetic metal films, and 5a to 5c are 6 is a laminated core according to the present invention.
제2도 (a) 및 (b)를 참조하면, 본 발명에 따른 자기헤드는 제1비자성 세라믹 기판(1a) 위에 제1금속자성막(2a) 및 제1DLC 절연막(5a)이 차례로 형성되고, 다시 그 위에 제2금속자성막(2b) 및 제2DLC 절연막(5b)이 형성되고, 또 다시 그 위에 제3금속자성막(2c), 제3절연막(5c) 그리고 제4금속자성막(2d)이 차례로 형성되어, 이어 그위에 제2비자성 세라믹 기판(1b)을 형성시켜 제1적층 코아부재를 이루고, 이 제1적층 코아부재와 동일한 구조의 제2적층 코아부재가 자기갭을 형성하도록 서로 결합시킨 구조이다.Referring to FIGS. 2A and 2B, in the magnetic head according to the present invention, a first metal magnetic layer 2a and a first DLC insulating layer 5a are sequentially formed on a first nonmagnetic ceramic substrate 1a. The second metal magnetic film 2b and the second DLC insulating film 5b are formed thereon, and the third metal magnetic film 2c, the third insulating film 5c and the fourth metal magnetic film 2d are formed thereon. ) Are sequentially formed, and then a second non-magnetic ceramic substrate 1b is formed thereon to form a first stacked core member, so that the second stacked core member having the same structure as the first stacked core member forms a magnetic gap. It is a structure combined with each other.
여기서, DLC(Diamond Like Carbon) 절연막은 제1비자성 세라믹 기판(1a)위에 스퍼터(Sputter) 등의 박막형성기술을 이용하여 금속자성막(2a∼2d)을 형성시킨 다음 같은 방법으로 형성시키는 것으로 높은 비저항을 갖는 특성을 갖고 있다.Here, the DLC (Diamond Like Carbon) insulating film is formed on the first non-magnetic ceramic substrate 1a by using a thin film forming technique such as sputtering to form the metal magnetic films 2a to 2d and then formed by the same method. It has the characteristic of having high specific resistance.
본 발명에 따른 DLC 절연막이 자기헤드에서 발생되는 와전류의 손실을 저감시키고, 또한 자기테이프와 자기헤드의 적층코아가 서로 습동되어도 편마모를 방지할 수 있다. 따라서, 자기테이프에 소정 정보를 기록 또는 재생시 높은 효율을 갖게 되는 잇점이 있다.The DLC insulating film according to the present invention can reduce the loss of eddy current generated in the magnetic head, and can prevent uneven wear even when the magnetic tape and the stacked cores of the magnetic head are slid together. Therefore, there is an advantage that high efficiency is obtained when recording or reproducing predetermined information on the magnetic tape.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950060992A KR0179517B1 (en) | 1995-12-28 | 1995-12-28 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950060992A KR0179517B1 (en) | 1995-12-28 | 1995-12-28 | Magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970050220A KR970050220A (en) | 1997-07-29 |
| KR0179517B1 true KR0179517B1 (en) | 1999-04-15 |
Family
ID=19445718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950060992A KR0179517B1 (en) | 1995-12-28 | 1995-12-28 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0179517B1 (en) |
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1995
- 1995-12-28 KR KR1019950060992A patent/KR0179517B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR970050220A (en) | 1997-07-29 |
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