DE69615456D1 - MR-Kopf mit parasitärem Schirm für elektrostatischen Entladungsschutz - Google Patents

MR-Kopf mit parasitärem Schirm für elektrostatischen Entladungsschutz

Info

Publication number
DE69615456D1
DE69615456D1 DE69615456T DE69615456T DE69615456D1 DE 69615456 D1 DE69615456 D1 DE 69615456D1 DE 69615456 T DE69615456 T DE 69615456T DE 69615456 T DE69615456 T DE 69615456T DE 69615456 D1 DE69615456 D1 DE 69615456D1
Authority
DE
Germany
Prior art keywords
head
electrostatic discharge
discharge protection
parasitic shield
parasitic
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
Application number
DE69615456T
Other languages
English (en)
Other versions
DE69615456T2 (de
Inventor
Timothy Scott Hughbanks
Neil Leslie Robertson
Steven Howard Voldman
Albert John Wallash
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IBM United Kingdom Ltd
HGST Netherlands BV
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE69615456D1 publication Critical patent/DE69615456D1/de
Publication of DE69615456T2 publication Critical patent/DE69615456T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • 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
    • G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
    • 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
    • G11B5/596—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 for track following on disks
    • G11B5/59683—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 for track following on disks for magnetoresistive heads
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69615456T 1995-06-07 1996-05-24 MR-Kopf mit parasitärem Schirm für elektrostatischen Entladungsschutz Expired - Fee Related DE69615456T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/480,069 US5761009A (en) 1995-06-07 1995-06-07 Having parastic shield for electrostatic discharge protection

Publications (2)

Publication Number Publication Date
DE69615456D1 true DE69615456D1 (de) 2001-10-31
DE69615456T2 DE69615456T2 (de) 2002-05-02

Family

ID=23906556

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69615456T Expired - Fee Related DE69615456T2 (de) 1995-06-07 1996-05-24 MR-Kopf mit parasitärem Schirm für elektrostatischen Entladungsschutz

Country Status (9)

Country Link
US (5) US5761009A (de)
EP (1) EP0747888B1 (de)
JP (1) JP3320973B2 (de)
KR (2) KR100263522B1 (de)
CN (3) CN1547194A (de)
DE (1) DE69615456T2 (de)
MY (1) MY119414A (de)
SG (1) SG51705A1 (de)
TW (1) TW297895B (de)

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US6233127B1 (en) * 1998-04-22 2001-05-15 Tdk Corporation Thin film device provided with means for electrostatic breakdown prevention
US6246553B1 (en) * 1998-12-02 2001-06-12 International Business Machines Corporation Shielded magnetoresistive head with charge clamp
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US6795278B2 (en) * 2002-03-28 2004-09-21 International Business Machines Corporation Method of protecting read sensors from electrostatic discharge damage during the manufacture of magnetic heads
US6710983B2 (en) 2002-05-10 2004-03-23 International Business Machines Corporation ESD protection for GMR sensors of magnetic heads using SiGe integrated circuit devices
US6870706B1 (en) * 2002-08-07 2005-03-22 Headway Technologies, Inc. Method for suppressing tribocharge in the assembly of magnetic heads
US7301732B2 (en) 2002-08-07 2007-11-27 Headway Technologies, Inc. GMR head design that suppresses tribocharge during its assembly
JP4365576B2 (ja) * 2002-11-22 2009-11-18 Ｔｄｋ株式会社 磁気メモリデバイスおよび書込電流駆動回路、並びに書込電流駆動方法
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US7489493B2 (en) * 2003-12-01 2009-02-10 Magnecomp Corporation Method to form electrostatic discharge protection on flexible circuits using a diamond-like carbon material
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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
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Also Published As

Publication number Publication date
US6359750B1 (en) 2002-03-19
CN1185631C (zh) 2005-01-19
JPH08335305A (ja) 1996-12-17
CN1547194A (zh) 2004-11-17
US20040017640A1 (en) 2004-01-29
SG51705A1 (en) 1998-09-28
DE69615456T2 (de) 2002-05-02
EP0747888B1 (de) 2001-09-26
CN1140872A (zh) 1997-01-22
CN1313586A (zh) 2001-09-19
EP0747888A2 (de) 1996-12-11
KR100263522B1 (ko) 2000-08-01
JP3320973B2 (ja) 2002-09-03
CN1077311C (zh) 2002-01-02
US6081409A (en) 2000-06-27
US5761009A (en) 1998-06-02
TW297895B (de) 1997-02-11
MY119414A (en) 2005-05-31
EP0747888A3 (de) 1997-05-28
US6288880B1 (en) 2001-09-11
KR100304026B1 (ko) 2001-11-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.

Owner name: IBM UNITED KINGDOM LTD., PORTSMOUTH, HAMPSHIRE, GB

8339 Ceased/non-payment of the annual fee