PT93005A - Cabeca de leitura/escrita de pelicula magnetica delgada e processo para a sua formacao - Google Patents

Cabeca de leitura/escrita de pelicula magnetica delgada e processo para a sua formacao

Info

Publication number
PT93005A
PT93005A PT93005A PT9300590A PT93005A PT 93005 A PT93005 A PT 93005A PT 93005 A PT93005 A PT 93005A PT 9300590 A PT9300590 A PT 9300590A PT 93005 A PT93005 A PT 93005A
Authority
PT
Portugal
Prior art keywords
cabin
writing
formation
magnetic film
film reading
Prior art date
Application number
PT93005A
Other languages
English (en)
Other versions
PT93005B (pt
Inventor
Mark Jurisch
Scott Daniel Dobbins
Original Assignee
Seagate Technology
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 Seagate Technology filed Critical Seagate Technology
Publication of PT93005A publication Critical patent/PT93005A/pt
Publication of PT93005B publication Critical patent/PT93005B/pt

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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • G11B5/112—Manufacture of shielding device
    • 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
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
PT93005A 1989-03-03 1990-01-30 Cabeca de leitura/escrita de pelicula magnetica delgada e processo para a sua formacao PT93005B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/319,144 US4972286A (en) 1989-03-03 1989-03-03 Grounding pole structures in thin film mganetic heads

Publications (2)

Publication Number Publication Date
PT93005A true PT93005A (pt) 1991-10-15
PT93005B PT93005B (pt) 1995-12-29

Family

ID=23241040

Family Applications (1)

Application Number Title Priority Date Filing Date
PT93005A PT93005B (pt) 1989-03-03 1990-01-30 Cabeca de leitura/escrita de pelicula magnetica delgada e processo para a sua formacao

Country Status (8)

Country Link
US (1) US4972286A (pt)
EP (1) EP0385023B1 (pt)
JP (1) JP2505594B2 (pt)
CN (1) CN1018591B (pt)
DE (1) DE68913291T2 (pt)
HK (1) HK110194A (pt)
MY (1) MY104214A (pt)
PT (1) PT93005B (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820770A (en) * 1992-07-21 1998-10-13 Seagate Technology, Inc. Thin film magnetic head including vias formed in alumina layer and process for making the same
US5566038A (en) * 1993-05-13 1996-10-15 Seagate Technology, Inc. Thin film magnetic head having core to coil over-voltage protection
US6233117B1 (en) 1994-07-15 2001-05-15 Seagate Technology Llc Electrically conductive path between head assembly and gimbal assembly in magnetic disc drive
US5539598A (en) * 1994-12-08 1996-07-23 International Business Machines Corporation Electrostatic protection for a shielded MR sensor
US5712748A (en) * 1996-06-11 1998-01-27 Seagate Technology, Inc. Slider-suspension in a disc drive
US6445538B1 (en) * 2000-10-12 2002-09-03 Storage Technology Corporation Electrostatic discharge control in tape reading heads with conductive epoxy adhesive
US6760199B2 (en) 2001-07-23 2004-07-06 International Business Machines Corporation Read/write head assembly employing independent read/write shield-pairing and charge-clamped magnetoresistive sensors
US6870706B1 (en) 2002-08-07 2005-03-22 Headway Technologies, Inc. Method for suppressing tribocharge in the assembly of magnetic heads
US7397636B2 (en) * 2002-08-07 2008-07-08 Headway Technologies, Inc. GMR head design that suppresses tribocharge during its assembly
US7369358B2 (en) * 2004-02-05 2008-05-06 Seagate Technology Llc Grounded writer core
US7400474B2 (en) * 2005-10-28 2008-07-15 International Business Machines Corporation Conductive pairing for piggyback magnetic head
US8102236B1 (en) * 2010-12-14 2012-01-24 International Business Machines Corporation Thin film inductor with integrated gaps

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079467A (en) * 1958-07-29 1963-02-26 Rca Corp Magnetic head construction
US3860965A (en) * 1973-10-04 1975-01-14 Ibm Magnetoresistive read head assembly having matched elements for common mode rejection
US4012781A (en) * 1975-08-14 1977-03-15 International Business Machines Corporation Magnetoresistive read head assembly for servo operation
AT340157B (de) * 1976-03-08 1977-11-25 Eumig Verfahren zur herstellung eines magnetkopfes und nach diesem verfahren hergestellter magnetkopf
JPS5422815A (en) * 1977-07-21 1979-02-21 Fujitsu Ltd Thin film magnetic head and production thereof
US4317149A (en) * 1980-06-02 1982-02-23 International Business Machines Corporation Magnetic head having static discharge means
US4356523A (en) * 1980-06-09 1982-10-26 Ampex Corporation Narrow track magnetoresistive transducer assembly
US4343026A (en) * 1980-07-09 1982-08-03 Spin Physics, Inc. Magnetoresistive head employing field feedback
DE3035327A1 (de) * 1980-09-19 1982-05-06 Hoechst Ag, 6000 Frankfurt Kuehlfluessigkeit mit korrosions- und kavitationshemmenden zusaetzen
US4425594A (en) * 1981-09-28 1984-01-10 Obedineni Zavodi Za Zapametyavashti Ustroystva Ceramic-ferrite head
EP0081240B1 (en) * 1981-12-09 1989-06-28 Matsushita Electric Industrial Co., Ltd. Thin film magnetic head
JPS60103512A (ja) * 1983-11-10 1985-06-07 Canon Inc 薄膜磁気ヘツド
US4546541A (en) * 1983-10-14 1985-10-15 Applied Magnetics Corporation Method of attaching electrical conductors to thin film magnetic transducer
FR2559297B1 (fr) * 1984-02-03 1990-01-12 Commissariat Energie Atomique Nouveau patin de vol pour tetes magnetiques d'enregistrement
JPH0760493B2 (ja) * 1985-02-13 1995-06-28 富士通株式会社 薄膜磁気ヘツド
US4800454A (en) * 1987-08-10 1989-01-24 Magnetic Peripherals Inc. Static charge protection for magnetic thin film data transducers
US4841395A (en) * 1988-03-21 1989-06-20 Magnetic Peripherals Inc. Static electricity discharge device for a magnetic head
JPH06350904A (ja) * 1993-06-08 1994-12-22 Olympus Optical Co Ltd カメラ

Also Published As

Publication number Publication date
JPH02240811A (ja) 1990-09-25
PT93005B (pt) 1995-12-29
EP0385023A3 (en) 1990-12-05
EP0385023A2 (en) 1990-09-05
MY104214A (en) 1994-02-28
DE68913291T2 (de) 1994-05-26
CN1045310A (zh) 1990-09-12
DE68913291D1 (de) 1994-03-31
HK110194A (en) 1994-10-21
EP0385023B1 (en) 1994-02-23
CN1018591B (zh) 1992-10-07
US4972286A (en) 1990-11-20
JP2505594B2 (ja) 1996-06-12

Similar Documents

Publication Publication Date Title
DE69028737D1 (de) Optisches Informationsaufzeichnungsverfahren
PT99321A (pt) Elemento identificador para recipientes e metodo e aparelho para a sua fabricacao
PT91269A (pt) Elemento estrutural e processo para a sua formacao
BR8801373A (pt) Processo para a obtencao de esteraminas quaternarias e sua utilizacao
BR8801581A (pt) Pelicula contratil de multiplas camadas e processo para sua producao
IT1140680B (it) Tessera d'identificazione a fogli laminata con informazioni inscritte a laser e procedimento per la sua produzione
BR9006848A (pt) Copolimero de policarbonato-polidimetilsiloxano e processo para a sua producao
DE68925926D1 (de) Photographisches Aufzeichnungsmaterial für eine beschleunigte Entwicklung
BR8902099A (pt) Material para mancais composto e processo para a sua fabricacao
DE69032423T2 (de) Informationsaufzeichnungs- und -wiedergabevorrichtung für eine Kamera
HK1003328A1 (en) Information card and method for its manufacturing
PT100316A (pt) Anticoagulantes e processo para a sua preparacao
BR9102794A (pt) Processo para a obtencao de tantalo e niobio
BR8601298A (pt) Artigo plastico fotocromico e processo para sua fabricacao
PT93005A (pt) Cabeca de leitura/escrita de pelicula magnetica delgada e processo para a sua formacao
BR8903484A (pt) Processo e meios para a fabricacao de fechos de correr
BR8900236A (pt) Pigmento nacarado e processo para sua preparacao
BR8504422A (pt) Processo para eletrodepositar um acabamento de cromo sobre um substrato e artigo tendo um acabamento de cromo eletrodepositado
BR9305296A (pt) Cárter e processo para a sua fabricação
PT100671A (pt) Sal de l-ascorbato de 16-descarboxi-16-hidroxi-metilanfotericina b e processo para a sua preparacao
BR8903663A (pt) Pelicula metalizada e processo para a producao da mesma
BR8201721A (pt) Pigmento opacificante e processo para sua formacao
BR8907080A (pt) Policarbonato ramificado e processo para sua producao
DE69421039D1 (de) Informationsaufzeichnungsverfahren
BR8903661A (pt) Pelicula metalizada e processo para a producao da mesma

Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19950914

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20030331