DE69833417D1 - Servo-Schreibkopf - Google Patents

Servo-Schreibkopf

Info

Publication number
DE69833417D1
DE69833417D1 DE69833417T DE69833417T DE69833417D1 DE 69833417 D1 DE69833417 D1 DE 69833417D1 DE 69833417 T DE69833417 T DE 69833417T DE 69833417 T DE69833417 T DE 69833417T DE 69833417 D1 DE69833417 D1 DE 69833417D1
Authority
DE
Germany
Prior art keywords
servo
write head
write
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 - Lifetime
Application number
DE69833417T
Other languages
English (en)
Other versions
DE69833417T2 (de
Inventor
Patricia A Beck
Paul W Poorman
George M Jnr Clifford
Richard H Henze
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69833417D1 publication Critical patent/DE69833417D1/de
Publication of DE69833417T2 publication Critical patent/DE69833417T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/187Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60Guiding record carrier
    • G11B15/62Maintaining desired spacing between record carrier and head
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/58Disposition 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
    • G11B5/584Disposition 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 tapes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/187Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871Shaping or contouring of the transducing or guiding surface
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/488Disposition of heads
    • G11B5/4893Disposition of heads relative to moving tape
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49021Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032Fabricating head structure or component thereof
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49021Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032Fabricating head structure or component thereof
    • Y10T29/49036Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49043Depositing magnetic layer or coating
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49021Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032Fabricating head structure or component thereof
    • Y10T29/49048Machining magnetic material [e.g., grinding, etching, polishing]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49021Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032Fabricating head structure or component thereof
    • Y10T29/49055Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49021Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032Fabricating head structure or component thereof
    • Y10T29/4906Providing winding
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49789Obtaining plural product pieces from unitary workpiece
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49789Obtaining plural product pieces from unitary workpiece
    • Y10T29/49798Dividing sequentially from leading end, e.g., by cutting or breaking
DE69833417T 1997-10-28 1998-10-27 Servo-Schreibkopf Expired - Lifetime DE69833417T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/959,509 US6018444A (en) 1997-10-28 1997-10-28 Batch fabricated servo write head having low write-gap linewidth variation
US959509 1997-10-28

Publications (2)

Publication Number Publication Date
DE69833417D1 true DE69833417D1 (de) 2006-04-20
DE69833417T2 DE69833417T2 (de) 2006-08-10

Family

ID=25502101

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69833417T Expired - Lifetime DE69833417T2 (de) 1997-10-28 1998-10-27 Servo-Schreibkopf

Country Status (4)

Country Link
US (5) US6018444A (de)
EP (1) EP0913813B1 (de)
JP (1) JPH11242803A (de)
DE (1) DE69833417T2 (de)

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US7196870B2 (en) * 1999-02-23 2007-03-27 Advanced Research Corporation Patterned magnetic recording head with termination pattern having a curved portion
US7773340B2 (en) * 1999-02-23 2010-08-10 Advanced Research Corporation Patterned magnetic recording head having a gap pattern with substantially elliptical or substantially diamond-shaped termination pattern
US20030093894A1 (en) 1999-02-23 2003-05-22 Dugas Matthew P. Double layer patterning and technique for making a magnetic recording head
KR100846237B1 (ko) * 1999-10-05 2008-07-16 시게이트 테크놀로지 엘엘씨 가변 길이의 갭을 갖는 수직 자기 기록 헤드
US20020057524A1 (en) * 1999-11-24 2002-05-16 Beck Patricia A. Servo head having rounded leading edge and methof of using the same
US6989960B2 (en) 1999-12-30 2006-01-24 Advanced Research Corporation Wear pads for timing-based surface film servo heads
US6496328B1 (en) * 1999-12-30 2002-12-17 Advanced Research Corporation Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads
US7099119B2 (en) * 2000-02-29 2006-08-29 Sony Corporation Magnetic head, method for recording/reproducing tape-like magnetic recording medium, and rotary magnetic head mechanism
US6639753B1 (en) 2000-09-01 2003-10-28 Hewlett-Packard Development Company, L.P. Method of forming a head assembly, a head assembly, and a linear tape drive
US6700729B1 (en) 2000-10-17 2004-03-02 Hewlett-Packard Development Company Alignment marks for tape head positioning
US6433959B1 (en) 2000-10-30 2002-08-13 Storage Technology Corporation Tape head contour utilizing enclosed through slots
US20030099069A1 (en) * 2001-10-10 2003-05-29 Tdk Corporation Magnetic head, method of manufacturing same, and head suspension assembly
AU2003245629A1 (en) 2002-06-19 2004-01-06 Advanced Research Corporation Optical waveguide path for a thermal-assisted magnetic recording head
US20030235011A1 (en) * 2002-06-21 2003-12-25 O-Mass As Head used in combination with wide tape media
US6947256B2 (en) * 2003-01-29 2005-09-20 International Business Machines Corporation Embedded wire planar write head system and method
US6874720B2 (en) * 2003-06-02 2005-04-05 Imation Corp. Data storage tape cartridge with subambient pressure feature
US7006329B2 (en) * 2003-06-02 2006-02-28 Imation Corp. Magnetic tape head assembly with laterally moveable central section
US7167339B2 (en) * 2003-12-03 2007-01-23 International Business Machines Corporation Method for producing and inspecting tape head air-skiving edges
US7031089B2 (en) * 2003-12-17 2006-04-18 Hewlett-Packard Development Company, L.P. Tape head assembly
US7196866B2 (en) * 2003-12-17 2007-03-27 Hewlett-Packard Development Company, L.P. Interconnect structure having multiple layers of traces for electrical connection to a tape head assembly
US8144424B2 (en) 2003-12-19 2012-03-27 Dugas Matthew P Timing-based servo verify head and magnetic media made therewith
US7283317B2 (en) * 2004-01-30 2007-10-16 Advanced Research Corporation Apparatuses and methods for pre-erasing during manufacture of magnetic tape
US20100321824A1 (en) * 2004-02-18 2010-12-23 Dugas Matthew P Magnetic recording head having secondary sub-gaps
JP4253263B2 (ja) * 2004-03-03 2009-04-08 富士フイルム株式会社 サーボライタ
US7204911B2 (en) * 2004-03-19 2007-04-17 Matsushita Electric Industrial Co., Ltd. Process and apparatus for forming discrete microcavities in a filament wire using a polymer etching mask
US7450341B2 (en) * 2004-05-04 2008-11-11 Advanced Research Corporation Intergrated thin film subgap subpole structure for arbitrary gap pattern magnetic recording heads and method of making the same
US7119976B2 (en) * 2005-01-12 2006-10-10 International Business Machines Corporation Planar servo format verifier head
WO2008089665A1 (en) * 2007-01-22 2008-07-31 Lafe Computer Magnetics Limited Tape head method and assembly utilizing split tape stabilizer design
WO2009094516A1 (en) * 2008-01-23 2009-07-30 Advanced Research Corporation Recording heads with embedded tape guides and magnetic media made by such recording heads
US8068300B2 (en) * 2008-03-28 2011-11-29 Advanced Research Corporation Thin film planar arbitrary gap pattern magnetic head
US8083720B2 (en) * 2008-05-13 2011-12-27 Solar Matthew S Device and method for delivering therapeutic agents to an area of the body
WO2011014836A2 (en) * 2009-07-31 2011-02-03 Advanced Research Corporation Erase drive systems and methods of erasure for tape data cartridge
JP5685045B2 (ja) * 2010-01-22 2015-03-18 富士フイルム株式会社 サーボライトヘッド、サーボライタおよびサーボ信号が書き込まれた磁気テープの製造方法
US8861132B2 (en) 2010-07-06 2014-10-14 International Business Machines Corporation Low friction tape head and system implementing same
US8679733B2 (en) * 2011-01-19 2014-03-25 International Business Machines Corporation Patterning process for small devices
US8824100B2 (en) * 2011-05-20 2014-09-02 Seagate Technology Llc Overcoats that include magnetic materials
US8804276B2 (en) 2011-06-13 2014-08-12 Imation Corp. Continuous biasing and servowriting of magnetic storage media having perpendicular anisotropy
US8767342B2 (en) 2011-06-13 2014-07-01 Imation Corp. Erasure and servowriting of magnetic storage media having perpendicular anistropy
US8817415B2 (en) 2011-06-13 2014-08-26 Imation Corp. Erasure of magnetic storage media having perpendicular anisotropy
US8797674B2 (en) 2011-06-13 2014-08-05 Imation Corp. Servo mark length matched to write head gap for magnetic storage media
US8724250B2 (en) 2012-04-03 2014-05-13 Hewlett-Packard Development Company, L.P. Reading magnetic tape
WO2013151612A1 (en) 2012-04-04 2013-10-10 Imation Corp. Perpendicular pole head for servo writing magnetic media
US8643968B2 (en) 2012-04-26 2014-02-04 Imation Corp. Methods and systems for magnetic media servo writing
US8867167B2 (en) 2012-04-26 2014-10-21 Imation Corp. Tapered pole heads for magnetic media
US8797681B2 (en) 2012-04-26 2014-08-05 Imation Corp. Servo write head having plural spaced front blocks coupled by magnetic posts to a back bar
US8760802B2 (en) 2012-04-26 2014-06-24 Imation Corp. Systems and methods for processing magnetic media with first and second magnetic gaps adjacent opposite sides of the recording layer
US8958175B1 (en) 2014-01-16 2015-02-17 Oracle International Corporation Tape head surface with non-uniform cross-width profile
US9837107B2 (en) * 2016-02-12 2017-12-05 International Business Machines Corporation Tape head with electrically conducting surface to reduce triboelectric charging
US9928855B1 (en) * 2016-10-31 2018-03-27 International Business Machines Corporation Tape head and system having asymmetrical construction
US9837104B1 (en) 2016-10-31 2017-12-05 International Business Machines Corporation Tape head having sensors proximate to an edge
US10068591B2 (en) 2016-12-05 2018-09-04 International Business Machines Corporation Head having wrap-controlled flexible media interface
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Also Published As

Publication number Publication date
US7206167B2 (en) 2007-04-17
DE69833417T2 (de) 2006-08-10
US6018444A (en) 2000-01-25
US20030030939A1 (en) 2003-02-13
EP0913813A2 (de) 1999-05-06
JPH11242803A (ja) 1999-09-07
US20010007170A1 (en) 2001-07-12
US6647613B2 (en) 2003-11-18
US6229669B1 (en) 2001-05-08
EP0913813B1 (de) 2006-02-08
US6999274B2 (en) 2006-02-14
US20050068668A1 (en) 2005-03-31
EP0913813A3 (de) 2000-08-30

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8364 No opposition during term of opposition