KR100370759B1 - Disk device of hard disk drive - Google Patents

Disk device of hard disk drive Download PDF

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Publication number
KR100370759B1
KR100370759B1 KR1019950036349A KR19950036349A KR100370759B1 KR 100370759 B1 KR100370759 B1 KR 100370759B1 KR 1019950036349 A KR1019950036349 A KR 1019950036349A KR 19950036349 A KR19950036349 A KR 19950036349A KR 100370759 B1 KR100370759 B1 KR 100370759B1
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KR
South Korea
Prior art keywords
css
disk
head
dlc
zone
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KR1019950036349A
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Korean (ko)
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KR970023256A (en
Inventor
윤우영
조긍연
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삼성전자 주식회사
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Priority to KR1019950036349A priority Critical patent/KR100370759B1/en
Publication of KR970023256A publication Critical patent/KR970023256A/en
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Publication of KR100370759B1 publication Critical patent/KR100370759B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24318—Non-metallic elements
    • G11B2007/24328—Carbon
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: A disk device of a hard disk drive is provided to endure shock generated in landing and taking off a head and minimize a frictional coefficient by coating a CSS zone as well as the head with a DLC material, thereby improving a CSS characteristic. CONSTITUTION: An Al-substrate(11) which forms a base of a disk(10) is overcoated with a thin magnetic carbon(12) in a certain thickness. To a whole CSS(Contact Start Stop) zone(14) where a write/read head lands or takes off, a DLC(Diamond-Like-Carbon)(16) is coated in a thickness considering the existing glide height. To a data zone(15) where data is stored, smooth texturing is executed by a lubricant on the carbon layer. An air bearing surface of the write/read head is coated with the same DLC material.

Description

하드디스크 드라이브의 디스크 장치Disk unit of the hard disk drive

본 발명은 하드디스크 드라이브에 관한 것으로, 특히 디스크의 랜딩존(Landing Zone 또는 CSS Zone)에 다이아몬드-라이크-카본(Diamond-Like-Carbon: 이하 "DLC"라 표기함)으로 코팅하여 드라이브의 CSS(Contact Start Stop)특성을 향상시키기 위한 디스크 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hard disk drive. In particular, the landing zone (CSS) of the disk is coated with Diamond-Like-Carbon (hereinafter referred to as "DLC") and the CSS of the drive ( Contact Start Stop) relates to a disk device for improving the characteristics.

하드디스크 드라이브 시장의 판도가 고용량 및 고밀도를 지향하게 되면서, 드라이브의 고용량 및 고밀도를 위해 헤드와 미디어의 간격은 거의 접촉에 가깝게요구되거나, 이미 접촉 드라이브를 시도하고 있는 상황에서, 기존의 엷은 필름막을 입힌 자기 박막 디스크(Magnetic Thin Film Disks)는 윤활제(Lubricant)의 특성 및 텍스춰링 방법(Texturing Method), 그리고 활공 높이(Glide Height), 평균조도 (Average Rouphness:RMS)등과 같은 헤드/미디어 간 인터페이스에서의 마찰특성을 고려하여 고용량 및 고밀도에 대한 요구를 만족시켜야 하는 과제로 남게 되고, 이러한 마찰학적 특성은 점점 그 중요성을 더해가고 있다.As the market for hard disk drives is oriented toward high capacity and high density, the head and media spacing is required to be close to contact for the high capacity and high density of the drive, or the existing thin film film is already being used in a situation where a contact drive is already being attempted. Coated Magnetic Thin Film Disks are designed for the characteristics of lubricants and texturing methods, and at head-to-media interfaces such as glide height and average routing (RMS). Considering the frictional characteristics of, it remains a task to satisfy the demand for high capacity and high density, these tribological characteristics are increasingly important.

종래 하드디스크 드라이브의 디스크는, 데이타영역(Data Zone)과 파킹영역(CSS Zone)의 두께가 약간의 차이를 보이도록 알루미늄 기판(Al-Substrate)상에 엷은 자기 필름(Cabon)을 일정한 두께로 오버 코팅(Over Coating)시켜 자성층을 형성하고, 그 위에 상기 자성층을 보호하기 위해 카본 코팅처리 한뒤, 다시 윤활제에 의한 텍스춰를 실시하여 사용하였다.In the conventional hard disk drive disks, a thin magnetic film (Cabon) over the aluminum substrate (Al-Substrate) to a certain thickness so that the thickness of the data zone and the parking zone (CSS Zone) shows a slight difference After coating (Over Coating) to form a magnetic layer, the carbon coating treatment to protect the magnetic layer thereon, and was used again by the texture with a lubricant.

상기와 같은 종래의 디스크로는 점점 타이트 해져 가는 CSS의 기준을 만족시키는 것이 쉽지 않고, CSS 영역의 일정 부분에서 계속 반복하여 파킹하는데서 오는 마모, 스틱션(Stiction), 그리고 마찰(Friction) 등의 문제가 발생하여 장기적인 신뢰성 보장이 어려워지는 문제점이 있다.It is not easy to satisfy the standards of CSS that are getting tighter with the conventional disks as described above, and problems such as wear, stiction, and friction that occur due to repeated parking at certain portions of the CSS region are not easy. There is a problem that it is difficult to ensure long-term reliability.

따라서 본 발명의 목적은 CSS 특성 및 드라이브의 신뢰성을 향상시키는 디스크 장치를 제공하는데 있다.Accordingly, an object of the present invention is to provide a disk device for improving the CSS characteristics and the reliability of the drive.

상기와 같은 목적에 따라 본 발명은 통상의 디스크에 사용되는 카본 코팅재를 다이아몬드 라이크 카본으로 교체하고, 또한 헤드의 윤활 특성을 극대화 하기 위하여 윤활층을 제거한 상태에서 동일한 다이아몬드 라이크 카본 물질로 슬라이더부상면에 코팅시키는 것을 특징으로 한다.In accordance with the above object, the present invention replaces the carbon coating material used in the conventional disk with diamond-like carbon, and in order to maximize the lubrication characteristics of the head, the same diamond-like carbon material is removed on the slider surface with the same lubrication layer removed. It is characterized by coating.

이하 본 발명의 바람직한 실시예가 첨부된 도면과 함께 상세히 설명될 것이다. 도면들중 동일한 부품들은 가능한한 어느곳에서든지 동일한 부호를 나타내고 있음을 유의하여야 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with the accompanying drawings. It should be noted that the same parts in the figures represent the same reference signs wherever possible.

본 발명에 따른 하드디스크 드라이브의 정보저장매체로 사용되는 디스크(10)는 제1,2도에 도시한 바와 같이, 드라이브의 CSS 특성을 향상시키기 위하여, 알루미늄 기판(Al-Substrate)(11) 상에 엷은 자기 필름(Cabon)(12)이 일정한 두께로 오버 코팅되어, 헤드(13)의 이,착륙 지점인 CSS 영역(14)과 데이터가 저장되는 부분인 데이터 영역(15)을 형성하고, 상기 CSS 영역(14)과 헤드(13)의 부상면(13a)에는 DLC(16) 코팅층을 형성한다.As shown in FIGS. 1 and 2, the disk 10 used as the information storage medium of the hard disk drive according to the present invention is mounted on an aluminum substrate 11 to improve the CSS characteristics of the drive. A thin magnetic film (Cabon) 12 is overcoated to a constant thickness to form a CSS region 14, which is the landing point of the head 13, and a data region 15, which is a portion where data is stored. DLC 16 coating layer is formed on the floating surface 13a of the CSS region 14 and the head 13.

상기와 같이 구성된 본 발명에 따른 디스크 장치의 작용 및 효과를 살펴보면 다음과 같다.Looking at the operation and effects of the disk device according to the present invention configured as described above are as follows.

디스크(10)의 베이스를 이루는 기판재(Al-Substrate)(11) 상에 엷은 자기 필름(Cabon)(12)을 일정한 두께로 전 영역에 걸쳐 오버코팅시킨 후, CSS영역(14) 전체에 대해서 기존의 활공높이를 감안한 두께로 DLC(16) 코팅을 실시하고, 그 외의 영역, 즉 데이타 영역(15)은 기존과 같이 카본층을 형성한뒤, 윤활제에 의한 매끄러운 텍스춰를 실시한다. 이때 상기 DLC(16)에 의한 CSS 영역(14)의 평균조도(Average Rouphness) 등은 요구하는 모델의 최적화에 의하게 되며, 또한 상기 DLC(16)의 합성정도, 즉 규소(Si)를 첨가하는 정도에 따라 윤활계수의 향상을 가져오게 된다.After overcoating a thin magnetic film (Cabon) 12 on a substrate material (Al-Substrate 11) forming the base of the disk 10 over the entire area with a constant thickness, the entire CSS area 14 DLC (16) coating is applied to a thickness in consideration of the existing glide height, and other areas, that is, the data area (15) forms a carbon layer as before, and then performs a smooth texture with a lubricant. In this case, the average roughness of the CSS region 14 by the DLC 16 is determined by the optimization of the required model, and the degree of synthesis of the DLC 16, that is, the degree of addition of silicon (Si). This leads to an improvement in the coefficient of lubrication.

또한 상기와 같이 디스크 기판의 전체를 자기 박막으로 코팅한후, CSS 영역에는 DLC 물질을 코팅하고, 동일 DLC로 코팅된 헤드를 사용함으로 하여 마찰계수를 최소화 하게된다.In addition, as described above, after the entire disk substrate is coated with a magnetic thin film, the DLC material is coated on the CSS region and the friction coefficient is minimized by using the head coated with the same DLC.

이상에서 살펴본 바와 같이 본 발명에 따른 하드디스크 드라이브의 디스크 장치는 자기 박막 디스크의 CSS 영역에 DLC로 코팅해줌에 따라 헤드의 이,착륙시 발생하는 충격에 강하고, 또한 상기 헤드의 부상면에도 DLC로 코팅하여 마찰계수를 같게 해주어 마찰로 인한 저항을 줄임으로써 CSS특성을 향상시키는 효과가 있다.As described above, the disk device of the hard disk drive according to the present invention is coated on the CSS region of the magnetic thin film disk with DLC, so that it is resistant to the impact generated during landing and landing of the head. The coating has the same friction coefficient, thereby reducing the resistance due to friction, thereby improving the CSS properties.

제 1 도는 본 발명에 따른 디스크의 평면도1 is a plan view of a disk according to the present invention.

제 2 도는 제1도의 A-A에 대한 단면도2 is a cross-sectional view taken along the line A-A of FIG.

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

10: 디스크 11: 알루미늄 기판(Al-Substrate)10: disc 11: aluminum substrate (Al-Substrate)

12: 카본(Carbon) 13: 헤드12: Carbon 13: Head

13a: 부상면(ABS) 14: CSS 영역13a: floating surface (ABS) 14: CSS region

15: 데이타 영역 16: 다이아몬드 라이크 카본(DLC)15: data region 16: diamond-like carbon (DLC)

Claims (1)

컴퓨터 보조기억장치인 하드디스크 드라이브에 있어서,In the hard disk drive that is a computer auxiliary storage device, 드라이브의 CSS 특성을 향상시키기 위하여 DLC(16)물질을 자기 박막 디스크(10)의 CSS 영역(14)과 읽기/쓰기 헤드(13)의 부상면(13a) 각각에 코팅하는 것을 특징으로 하는 하드디스크 드라이브의 디스크 장치.Hard disk, characterized in that the DLC (16) material is coated on each of the CSS region 14 of the magnetic thin film disk 10 and the floating surface 13a of the read / write head 13 to improve the CSS characteristics of the drive. Disk unit of the drive.
KR1019950036349A 1995-10-20 1995-10-20 Disk device of hard disk drive KR100370759B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950036349A KR100370759B1 (en) 1995-10-20 1995-10-20 Disk device of hard disk drive

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Application Number Priority Date Filing Date Title
KR1019950036349A KR100370759B1 (en) 1995-10-20 1995-10-20 Disk device of hard disk drive

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KR970023256A KR970023256A (en) 1997-05-30
KR100370759B1 true KR100370759B1 (en) 2003-03-26

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030067986A (en) * 2002-02-09 2003-08-19 엘지전자 주식회사 Near field magneto-optical storage media and manufacturing method thereof
KR100842897B1 (en) * 2007-01-29 2008-07-03 삼성전자주식회사 Structure of ferroelectric media for ferroelectric hdd and method of manufacture thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110676A (en) * 1989-07-07 1992-05-05 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium incorporating metallic magnetic thin film
JPH06150599A (en) * 1992-11-12 1994-05-31 Nec Corp Magnetic head slider
JPH06236537A (en) * 1993-01-08 1994-08-23 Internatl Business Mach Corp <Ibm> Magnetic transducer/suspension assembly and its manufacture as well as disk drive assembly
JPH07254127A (en) * 1994-03-15 1995-10-03 Kao Corp Magnetic recording medium and its production
JPH07254125A (en) * 1994-03-15 1995-10-03 Matsushita Electric Ind Co Ltd Magnetic recording medium and its production
JPH07262547A (en) * 1994-03-18 1995-10-13 Kubota Corp Magnetic recording medium and its production

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110676A (en) * 1989-07-07 1992-05-05 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium incorporating metallic magnetic thin film
JPH06150599A (en) * 1992-11-12 1994-05-31 Nec Corp Magnetic head slider
JPH06236537A (en) * 1993-01-08 1994-08-23 Internatl Business Mach Corp <Ibm> Magnetic transducer/suspension assembly and its manufacture as well as disk drive assembly
JPH07254127A (en) * 1994-03-15 1995-10-03 Kao Corp Magnetic recording medium and its production
JPH07254125A (en) * 1994-03-15 1995-10-03 Matsushita Electric Ind Co Ltd Magnetic recording medium and its production
JPH07262547A (en) * 1994-03-18 1995-10-13 Kubota Corp Magnetic recording medium and its production

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