KR100245658B1 - 자기 저항 효과형 자기 헤드 및 그의 제조 방법 - Google Patents
자기 저항 효과형 자기 헤드 및 그의 제조 방법 Download PDFInfo
- Publication number
- KR100245658B1 KR100245658B1 KR1019960040834A KR19960040834A KR100245658B1 KR 100245658 B1 KR100245658 B1 KR 100245658B1 KR 1019960040834 A KR1019960040834 A KR 1019960040834A KR 19960040834 A KR19960040834 A KR 19960040834A KR 100245658 B1 KR100245658 B1 KR 100245658B1
- Authority
- KR
- South Korea
- Prior art keywords
- film
- shield film
- magnetoresistive
- forming
- magnetic head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
-
- 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
-
- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
-
- 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
- G11B5/40—Protective measures on heads, e.g. against excessive temperature
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
-
- 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
- Y10T29/49043—Depositing magnetic layer or coating
- Y10T29/49044—Plural magnetic deposition layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (6)
- 자기 저항 효과형 헤드의 제조 방법에 있어서,(a) 기판 상에 하부 실드막을 형성하는 단계,(b) 상기 하부 실드막 상에 하부 갭막을 거쳐 자기 저항 효과막 및 바이어스 막을 구비한 자기 저항 효과 소자를 형성하고, 상기 자기 저항 효과 소자의 외부 자계 변화에 의한 저항의 변화를 검출하기 위한 2개의 전극을 형성하는 단계,(c) 상기 2개의 전극 중 하나의 전극을 상기 하부 실드막에 전기적으로 접속하는 단계,(d) 상기 하부 실드막, 상기 자기 저항 효과 소자 및 상기 2개의 전극 상에 상부 실드막을 형성하되, 상기 상부 실드막을 부상면(floating surface)이 일 측부에서 상기 하부 실드막보다 짧게 형성하는 단계,(e) 상기 2개의 전극 중 다른 하나의 전극과 상기 상부 실드막을 전기적으로 접속하는 단계,(f) 상기 상부 실드막 상에 기록용 갭막을 형성하는 단계,(g) 상기 기록용 갭막 상에 절연막을 거쳐 코일을 형성하는 단계,(h) 상기 부상면의 상기 일 측부의 대향 측부에 상기 코일 상에 절연막을 거쳐 기록용 상부 코어 형성하여, 상기 기록용 상부 코어가 상기 상부 실드막과 폐루프 자기 회로를 형성하게 하는 단계,(i) 상기 기록용 상부 코어 상에 보호막을 형성하고, 상기 하부 실드막의 단부, 상기 상부 실드막의 단부, 상기 2개의 전극의 단부 및 상기 코일의 단부를 상기 보호막 상에서 노출시키는 단계,(j) 상기한 연속적인 단계들에 의해 형성된 복수의 자기 저항 효과형 자기 헤드 소자를 형성하는 기판을 절단함으로써 슬라이더 블록을 형성하는 단계,(k) 상기 슬라이더 블록 상의 상기 자기 저항 효과형 자기 헤드 소자의 상기 상부 실드막의 단부와 상기 하부 실드막의 단부를 전기적 도전성 부재에 의해 접속 하는 단계,(l) 상기 슬라이더 블록의 상기 부상면 상의 랩 가공(lapping process)에 의해 상기 상부 실드막과 하부 실드막의 단락부를 절단하는 단계, 및(m) 상기 부상면을 위해 상기 슬라이더 블록에 레일 가공(rail process)을 행하는 단계를 포함하는 자기 저항 효과형 헤드의 제조 방법.
- 제1항에 있어서, 상기 슬라이더 블록 상의 상기 자기 저항 효과형 자기 헤드 소자들의 상기 하부 실드막의 단부와 상기 하부 실드막의 단부를 접속하는 상기 전기적 도전성 부재는 전기적 도전성 수지를 포함하는 자기 저항 효과형 헤드의 제조 방법.
- 제1항에 있어서, 상기 슬라이더 블록 상의 상기 자기 저항 효과형 자기 헤드 소자의 상기 하부 실드막의 단부와 상기 상부 실드막의 단부를 접속하는 상기 전기적 도전성 부재는 외부 단락 회로를 포함하는 자기 저항 효과형 자기 헤드의 제조 방법.
- 제1항에 있어서, 상기 자기 저항 효과 소자의 상기 외부 자계 변화에 의해 유발된 상기 저항의 변화를 검출하는 상기 2개의 전극을 형성한 후에 상기 2개의 전극을 통해 상기 자기 저항 효과 소자를 검사하는 단계를 더 포함하는 자기 저항 효과형 자기 헤드의 제조 방법.
- 제1항에 있어서, 상기 슬라이더 블록에 부상을 위한 상기 레일 가공을 행한 후, 상기 슬라이더 블록 상의 상기 상부 실드막의 단부와 상기 하부 실드막의 단부간의 전기적 접속부를 절단하고, 상기 2개의 전극의 단부를 통해 상기 자기 저항 효과 소자를 검사하는 단계를 더 포함하는 자기 저항 효과형 자기 헤드의 제조 방법.
- 자기 저항 효과형 헤드 조립체의 제조 방법에 있어서,(a) 기판 상에 하부 실드막을 형성하는 단계,(b) 상기 하부 실드막 상에 하부 갭막을 거쳐 자기 저항 효과막 및 바이어스 막을 구비한 자기 저항 효과 소자를 형성하고, 상기 자기 저항 효과 소자의 외부 자계 변화에 의한 저항의 변화를 검출하기 위한 2개의 전극을 형성하는 단계,(c) 상기 2개의 전극 중 하나의 전극을 상기 하부 실드막에 전기적으로 접속하는 단계,(d) 상기 하부 실드막, 상기 자기 저항 효과 소자 및 상기 2개의 전극 상에 상부 실드막을 형성하되, 상기 상부 실드막을 부상면의 일 측부에서 상기 하부 실드 막보다 짧게 형성하는 단계,(e) 상기 2개의 전극 중 다른 하나의 전극과 상기 상부 실드막을 전기적으로 접속하는 단계,(f) 상기 상부 실드막 상에 기록용 갭막을 형성하는 단계,(g) 상기 기록용 갭막 상에 절연막을 거쳐 코일을 형성하는 단계,(h) 상기 부상면의 상기 일 측부의 대향 측부에 상기 코일 상에 절연막을 거쳐 기록용 코어를 형성하여, 상기 기록용 상부 코어가 상기 상부 실드막과 폐루프 자기 회로를 형성하게 하는 단계,(i) 상기 기록용 상부 코어 상에 보호막을 형성하고, 상기 하부 실드막의 단부, 상기 상부 실드막의 단부, 상기 2개의 전극의 단부 및 상기 코일의 단부를 상기 보호막 상에서 노출시키는 단계,(j) 상기한 연속적인 단계들에 의해 형성된 복수의 자기 저항 효과형 자기 헤드 소자를 형성하는 기판을 절단함으로써 슬라이더 블록을 형성하는 단계,(k) 상기 슬라이더 블록 상의 상기 자기 저항 효과형 자기 헤드 소자의 상기 상부 실드막의 단부와 상기 하부 실드막의 단부를 전기적 도전성 부재에 의해 접속 하는 단계,(l) 상기 슬라이더 블록의 상기 부상면 상의 랩 가공에 의해 상기 상부 실드막과 하부 실드막의 단락부를 절단하는 단계,(m) 상기 부상면을 위해 상기 슬라이더 블록에 레일 가공을 행하는 단계, 및(n) 상기 하부 실드막의 단부와 상기 상부 실드막의 단부가 상기 전기적 도전성 부재에 의해 접속된 상태에서 상기 슬라이더 블록을 서스펜션 스프링 상에 장착하는 단계를 포함하는 자기 저항 효과형 헤드 조립체의 제조 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP95-239941 | 1995-09-19 | ||
JP7239941A JPH0991623A (ja) | 1995-09-19 | 1995-09-19 | 磁気抵抗効果型磁気ヘッド及びその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100245658B1 true KR100245658B1 (ko) | 2000-02-15 |
Family
ID=17052103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960040834A Expired - Fee Related KR100245658B1 (ko) | 1995-09-19 | 1996-09-19 | 자기 저항 효과형 자기 헤드 및 그의 제조 방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5805390A (ko) |
JP (1) | JPH0991623A (ko) |
KR (1) | KR100245658B1 (ko) |
CN (1) | CN1068130C (ko) |
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US7268974B2 (en) | 2004-04-30 | 2007-09-11 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic write head having a notched yoke structure with a trailing shield and method of making the same |
US7291279B2 (en) * | 2004-04-30 | 2007-11-06 | Hitachi Global Storage Technologies Netherlands B.V. | Method of making a read sensor while protecting it from electrostatic discharge (ESD) damage |
US7296336B2 (en) * | 2004-05-25 | 2007-11-20 | Sae Magnetics (H.K.) Ltd. | Method to protect a GMR head from electrostatic damage during the manufacturing process |
US7707707B2 (en) * | 2005-01-04 | 2010-05-04 | Hitachi Global Storage Technologies Netherlands B.V. | Method for providing a temporary deep shunt on wafer structures for electrostatic discharge protection during processing |
US7469466B2 (en) * | 2005-01-04 | 2008-12-30 | Hitachi Global Storage Technologies Netherlands Bv | Method for providing a temporary, deep shunt on wafer structures for electrostatic discharge protection during processing |
US7249406B2 (en) * | 2005-02-28 | 2007-07-31 | Hitachi Global Storage Technologies Netherlands, B.V. | Method to detect magnetic pole defects in perpendicular recording heads at wafer level |
US8223462B2 (en) * | 2008-05-30 | 2012-07-17 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetoresistive sensor design for signal noise pickup reduction for use with deep gap electrostatic discharge shunt |
US8274762B2 (en) * | 2008-05-30 | 2012-09-25 | Hitachi Global Storage Technologies Netherlands B.V. | Methods and systems for using resistivity of sensor film in an element shunt |
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US4317149A (en) * | 1980-06-02 | 1982-02-23 | International Business Machines Corporation | Magnetic head having static discharge means |
JPS6168413A (ja) * | 1984-09-10 | 1986-04-08 | Lion Corp | 外用ゲル組成物 |
JPS6177114A (ja) * | 1984-09-20 | 1986-04-19 | Fujitsu Ltd | 磁気抵抗効果型磁気ヘツド |
US4800454A (en) * | 1987-08-10 | 1989-01-24 | Magnetic Peripherals Inc. | Static charge protection for magnetic thin film data transducers |
US5065094A (en) * | 1990-08-07 | 1991-11-12 | Seagate Technology, Inc. | Two terminal magnetoresistive sensor having DC blocking capacitor |
US5465186A (en) * | 1994-01-26 | 1995-11-07 | International Business Machines Corporation | Shorted magnetoresistive head leads for electrical overstress and electrostatic discharge protection during manufacture of a magnetic storage system |
US5587857A (en) * | 1994-10-18 | 1996-12-24 | International Business Machines Corporation | Silicon chip with an integrated magnetoresistive head mounted on a slider |
US5491605A (en) * | 1994-12-23 | 1996-02-13 | International Business Machines Corporation | Shorted magnetoresistive head elements for electrical overstress and electrostatic discharge protection |
US5638237A (en) * | 1995-08-25 | 1997-06-10 | International Business Machines Corporation | Fusible-link removable shorting of magnetoresistive heads for electrostatic discharge protection |
-
1995
- 1995-09-19 JP JP7239941A patent/JPH0991623A/ja active Pending
-
1996
- 1996-09-18 US US08/718,127 patent/US5805390A/en not_active Expired - Fee Related
- 1996-09-19 KR KR1019960040834A patent/KR100245658B1/ko not_active Expired - Fee Related
- 1996-09-19 CN CN96112857A patent/CN1068130C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5805390A (en) | 1998-09-08 |
CN1152766A (zh) | 1997-06-25 |
CN1068130C (zh) | 2001-07-04 |
JPH0991623A (ja) | 1997-04-04 |
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