DE69617319T2 - Dünnfilmübertrager zur Unterschwingungsreduktion - Google Patents
Dünnfilmübertrager zur UnterschwingungsreduktionInfo
- Publication number
- DE69617319T2 DE69617319T2 DE69617319T DE69617319T DE69617319T2 DE 69617319 T2 DE69617319 T2 DE 69617319T2 DE 69617319 T DE69617319 T DE 69617319T DE 69617319 T DE69617319 T DE 69617319T DE 69617319 T2 DE69617319 T2 DE 69617319T2
- Authority
- DE
- Germany
- Prior art keywords
- thin film
- harmonic reduction
- film transformer
- transformer
- harmonic
- 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
-
- 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
-
- 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
- G11B5/3106—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
-
- 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
- Y10T29/49046—Depositing magnetic layer or coating with etching or machining of magnetic material
-
- 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]
- Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/481,090 US5615069A (en) | 1995-06-07 | 1995-06-07 | Thin-film transducer design for undershoot reduction |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69617319D1 DE69617319D1 (de) | 2002-01-10 |
DE69617319T2 true DE69617319T2 (de) | 2002-07-04 |
Family
ID=23910557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69617319T Expired - Fee Related DE69617319T2 (de) | 1995-06-07 | 1996-06-05 | Dünnfilmübertrager zur Unterschwingungsreduktion |
Country Status (7)
Country | Link |
---|---|
US (2) | US5615069A (de) |
EP (1) | EP0747885B1 (de) |
JP (1) | JPH09102107A (de) |
KR (1) | KR100218178B1 (de) |
DE (1) | DE69617319T2 (de) |
HK (1) | HK1012118A1 (de) |
SG (1) | SG45484A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5973891A (en) * | 1997-05-21 | 1999-10-26 | Quantum Corporation | Data transducer and method for writing data utilizing the bottom pole as the trailing edge of a thin-film magnetic tape write head |
US6507454B1 (en) * | 1997-10-03 | 2003-01-14 | Seagate Technology Llc | Curved trim profile for ABS trimmed inductive heads |
US6269533B2 (en) * | 1999-02-23 | 2001-08-07 | Advanced Research Corporation | Method of making a patterned magnetic recording head |
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 |
US6275092B1 (en) | 1999-11-16 | 2001-08-14 | Texas Instruments Incorporated | Active damping circuit |
US6496328B1 (en) * | 1999-12-30 | 2002-12-17 | Advanced Research Corporation | Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads |
JP3565492B2 (ja) * | 2000-02-17 | 2004-09-15 | Tdk株式会社 | 薄膜磁気ヘッド、磁気ヘッド装置及び磁気ディスク装置 |
US6651313B1 (en) | 2000-10-06 | 2003-11-25 | International Business Machines Corporation | Method for manufacturing a magnetic head |
KR100370403B1 (ko) * | 2000-11-24 | 2003-01-29 | 삼성전자 주식회사 | 수직자기기록 방식의 자기헤드 |
US6809899B1 (en) | 2001-08-20 | 2004-10-26 | Western Digital (Fremont), Inc. | Magnetic heads for perpendicular recording with trapezoidal pole tips |
US6996033B2 (en) * | 2002-06-19 | 2006-02-07 | Advanced Research Corporation | Optical path for a thermal-assisted magnetic recording head |
US8144424B2 (en) | 2003-12-19 | 2012-03-27 | Dugas Matthew P | Timing-based servo verify head and magnetic media made therewith |
US7057849B2 (en) * | 2003-12-31 | 2006-06-06 | Esgw Holding Limited | Data storage device with dampers |
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 |
JP2007536683A (ja) * | 2004-05-04 | 2007-12-13 | アドバンスト・リサーチ・コーポレーション | 任意形状のギャップ・パターンのための集積型薄膜サブギャップ/サブ磁極構造、磁気記録ヘッド、及びその製造方法 |
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 |
US8068302B2 (en) * | 2008-03-28 | 2011-11-29 | Advanced Research Corporation | Method of formatting magnetic media using a thin film planar arbitrary gap pattern magnetic head |
US8310782B2 (en) * | 2008-04-04 | 2012-11-13 | Seagate Technology Llc | Dedicated ID-OD writer with beveled pole tips and method of manufacture |
US8767331B2 (en) * | 2009-07-31 | 2014-07-01 | Advanced Research Corporation | Erase drive system and methods of erasure for tape data cartridge |
US9082425B2 (en) | 2011-05-04 | 2015-07-14 | Seagate Technology Llc | Magnetic shield with flux concentration feature |
JP2015185182A (ja) * | 2014-03-20 | 2015-10-22 | 株式会社東芝 | 磁気記録装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5880119A (ja) * | 1981-11-04 | 1983-05-14 | Hitachi Ltd | 複合磁性体磁気ヘツド |
JPH0628082B2 (ja) * | 1983-05-17 | 1994-04-13 | 三菱電機株式会社 | 磁気ヘッド |
JPS60131604A (ja) * | 1983-12-20 | 1985-07-13 | Victor Co Of Japan Ltd | 磁気記録再生素子 |
JPH01133211A (ja) * | 1987-06-16 | 1989-05-25 | Hitachi Ltd | 薄膜磁気ヘッド及びその製造方法 |
EP0311854A1 (de) * | 1987-10-16 | 1989-04-19 | Siemens Aktiengesellschaft | Dünnfilm-Magnetkopf mit schichtweisem Aufbau zur senkrechten Magnetisierung |
KR920001156B1 (ko) * | 1988-07-13 | 1992-02-06 | 삼성전자 주식회사 | 컴퓨터용 자기헤드 |
US4970616A (en) * | 1988-08-17 | 1990-11-13 | Digital Equipment Corporation | Recording head to minimize undershoots in readback pulses |
US5296979A (en) * | 1988-09-20 | 1994-03-22 | Hitachi, Ltd. | Magnetic disc apparatus with thin film head suitable for high-density recording |
US4970615A (en) * | 1989-05-26 | 1990-11-13 | Magnetic Peripherals Inc. | Pole design for thin film magnetic heads |
US5055959A (en) * | 1990-01-09 | 1991-10-08 | Digital Equipment Corporation | Tape head with low spacing loss produced by narrow and wide wear regions |
US5137750A (en) * | 1990-11-06 | 1992-08-11 | Seagate Technology, Inc. | Method of making a thin film head with contoured pole face edges for undershoot reduction |
US5181152A (en) * | 1991-02-22 | 1993-01-19 | Seagate Technology Inc. | Leading edge undershoot elimination in thin film heads |
US5267112A (en) * | 1991-09-30 | 1993-11-30 | Digital Equipment Corporation | Thin film read/write head for minimizing erase fringing and method of making the same |
WO1993007612A1 (en) * | 1991-10-10 | 1993-04-15 | Eastman Kodak Company | Tracking control apparatus including a servo head having a tapered transducing gap |
FR2687497B1 (fr) * | 1992-02-13 | 1995-10-13 | Commissariat Energie Atomique | Procede de realisation d'une tete magnetique en couches minces. |
US5285340A (en) * | 1992-02-28 | 1994-02-08 | International Business Machines Corporation | Thin film magnetic head with conformable pole tips |
US5452166A (en) * | 1993-10-01 | 1995-09-19 | Applied Magnetics Corporation | Thin film magnetic recording head for minimizing undershoots and a method for manufacturing the same |
-
1995
- 1995-06-07 US US08/481,090 patent/US5615069A/en not_active Expired - Fee Related
-
1996
- 1996-06-05 EP EP96304111A patent/EP0747885B1/de not_active Expired - Lifetime
- 1996-06-05 DE DE69617319T patent/DE69617319T2/de not_active Expired - Fee Related
- 1996-06-06 SG SG1996009990A patent/SG45484A1/en unknown
- 1996-06-07 KR KR1019960020227A patent/KR100218178B1/ko not_active IP Right Cessation
- 1996-06-07 JP JP8146098A patent/JPH09102107A/ja active Pending
- 1996-06-20 US US08/667,867 patent/US5737826A/en not_active Expired - Fee Related
-
1998
- 1998-12-14 HK HK98113278A patent/HK1012118A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US5737826A (en) | 1998-04-14 |
KR970002912A (ko) | 1997-01-28 |
EP0747885A1 (de) | 1996-12-11 |
EP0747885B1 (de) | 2001-11-28 |
SG45484A1 (en) | 1998-01-16 |
DE69617319D1 (de) | 2002-01-10 |
US5615069A (en) | 1997-03-25 |
KR100218178B1 (ko) | 1999-09-01 |
HK1012118A1 (en) | 1999-07-23 |
JPH09102107A (ja) | 1997-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69617319D1 (de) | Dünnfilmübertrager zur Unterschwingungsreduktion | |
DE69721505D1 (de) | Film zur helligkeitserhoehung | |
DE69615505T2 (de) | Halogenidfreie sterilisierbare mehrscichtsperrfolie | |
DE69606811D1 (de) | Mehrschichtfolie | |
BR9609314A (pt) | Película de multicamadas | |
DK0861307T3 (da) | Genanbringelig klæbende genstand | |
NO963228D0 (no) | Fremgangsmåte for skalering | |
DE69634988D1 (de) | Akustische wandlerkomponenten | |
DE69606195D1 (de) | Klebefilm | |
DE69624123D1 (de) | Klebeverschluss | |
DE69610452D1 (de) | Mehrschichtfolie | |
DE69611051T2 (de) | Leicht entfernbare Verpackungsfolie | |
DE69405961T2 (de) | Film zur metallaminierung | |
DE69506616T2 (de) | Verschleissbeständiger Film | |
DE69624341T2 (de) | Wärmeschrumpfbare mehrschichtfolie | |
KR960037966U (ko) | 두께가 얇은 배관 연결용 플랜지 | |
DE69620938D1 (de) | Schichtfolie | |
DE69626925T2 (de) | Mehrschichtfolie | |
EE00060U1 (et) | Taimede eelkasvatuskile | |
KR960038433U (ko) | 재사용이 가능한 현수막 | |
KR970019579U (ko) | 변압장치 | |
DE59605110D1 (de) | Abdeckfolie | |
KR950034280U (ko) | 계기용 변성기의 고정대 | |
DE69629644D1 (de) | Filmaufwickelvorrichtung | |
KR950022660U (ko) | 떡시루용 플랜지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |