DE69222559D1 - Verfahren zum Herstellen eines Magnetkopfes und Magnetkopfgruppe hergestellt nach diesem Verfahren - Google Patents
Verfahren zum Herstellen eines Magnetkopfes und Magnetkopfgruppe hergestellt nach diesem VerfahrenInfo
- Publication number
- DE69222559D1 DE69222559D1 DE69222559T DE69222559T DE69222559D1 DE 69222559 D1 DE69222559 D1 DE 69222559D1 DE 69222559 T DE69222559 T DE 69222559T DE 69222559 T DE69222559 T DE 69222559T DE 69222559 D1 DE69222559 D1 DE 69222559D1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic head
- manufacturing
- group made
- head group
- magnetic
- 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
- G11B5/48—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
- G11B5/488—Disposition of 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
-
- 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
- G11B5/1272—Assembling or shaping of elements
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/23—Gap features
- G11B5/232—Manufacture of gap
-
- 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
- G11B5/52—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 simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
- G11B5/531—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis
-
- 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 |
---|---|---|---|
EP91200859 | 1991-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69222559D1 true DE69222559D1 (de) | 1997-11-13 |
DE69222559T2 DE69222559T2 (de) | 1998-04-16 |
Family
ID=8207605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69222559T Expired - Fee Related DE69222559T2 (de) | 1991-04-12 | 1992-04-03 | Verfahren zum Herstellen eines Magnetkopfes und Magnetkopfgruppe hergestellt nach diesem Verfahren |
Country Status (4)
Country | Link |
---|---|
US (1) | US5301418A (de) |
EP (1) | EP0508533B1 (de) |
JP (1) | JPH05120629A (de) |
DE (1) | DE69222559T2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5815909A (en) * | 1994-08-26 | 1998-10-06 | Aiwa Research And Development, Inc. | Method of making a thin film magnetic head including protected via connections through an electrically insulative substrate |
DE69611804D1 (de) * | 1995-04-17 | 2001-03-29 | Read Rite Corp | Bildung eines isolierenden dünnen Filmes durch eine Vielzahl von Ionenstrahlen |
JPH10302219A (ja) * | 1997-04-30 | 1998-11-13 | Fujitsu Ltd | 薄膜磁気ヘッドおよび製造方法 |
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 |
US6269533B2 (en) * | 1999-02-23 | 2001-08-07 | Advanced Research Corporation | Method of making a patterned magnetic recording head |
US20030093894A1 (en) * | 1999-02-23 | 2003-05-22 | Dugas Matthew P. | Double layer patterning and technique for making a magnetic recording head |
JP3499164B2 (ja) * | 1999-09-24 | 2004-02-23 | 株式会社東芝 | 磁気ヘッド、その製造方法及び垂直磁気記録装置 |
US6496328B1 (en) | 1999-12-30 | 2002-12-17 | Advanced Research Corporation | Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads |
US6606219B2 (en) * | 2001-02-28 | 2003-08-12 | Lafe Technology Limited | Magnetic tape head including a transducer cluster and a block fixed to a u-shaped frame having a ridge |
WO2004001724A1 (en) * | 2002-06-19 | 2003-12-31 | Advanced Research Corporation | Optical waveguide 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 |
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 |
WO2005109405A1 (en) * | 2004-05-04 | 2005-11-17 | Advanced Research Corporation | Intergrated thin film subgap/subpole structure for arbitrary gap pattern, magnetic recording heads and method of making the same |
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 |
WO2011014836A2 (en) * | 2009-07-31 | 2011-02-03 | Advanced Research Corporation | Erase drive systems and methods of erasure for tape data cartridge |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4476509A (en) * | 1981-02-20 | 1984-10-09 | Hitachi, Ltd. | Thin film magnetic head and method of manufacturing the same |
JPH0241083B2 (ja) * | 1981-07-15 | 1990-09-14 | Hitachi Ltd | Kinzokujiseihakumakugatajikihetsudonoseizohoho |
NL8200531A (nl) * | 1982-02-12 | 1983-09-01 | Philips Nv | Magneetkop met gedeeltelijk uitgeetste wikkelopening. |
JPS593716A (ja) * | 1982-06-30 | 1984-01-10 | Hitachi Ltd | 薄膜磁気ヘツド |
JPS60119612A (ja) * | 1983-12-02 | 1985-06-27 | Hitachi Ltd | ダブルアジマス薄膜磁気ヘッドの製造方法 |
JPH0268704A (ja) * | 1988-09-02 | 1990-03-08 | Yamaha Corp | 薄膜ヘッドの製造方法 |
FR2646001B1 (fr) * | 1989-04-14 | 1995-09-01 | Europ Composants Electron | Procede de realisation d'un dispositif utilisant une structure de films a couches minces |
FR2661030B1 (fr) * | 1990-04-13 | 1995-04-07 | Thomson Csf | Tete magnetique d'enregistrement/lecture et procedes de realisation. |
FR2664729B1 (fr) * | 1990-07-11 | 1992-09-18 | Commissariat Energie Atomique | Procede de fabrication de tete magnetique possedant un entrefer presentant un azimut controlable. |
-
1992
- 1992-04-01 US US07/861,748 patent/US5301418A/en not_active Expired - Fee Related
- 1992-04-03 EP EP92200953A patent/EP0508533B1/de not_active Expired - Lifetime
- 1992-04-03 DE DE69222559T patent/DE69222559T2/de not_active Expired - Fee Related
- 1992-04-13 JP JP4092825A patent/JPH05120629A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH05120629A (ja) | 1993-05-18 |
DE69222559T2 (de) | 1998-04-16 |
EP0508533B1 (de) | 1997-10-08 |
US5301418A (en) | 1994-04-12 |
EP0508533A2 (de) | 1992-10-14 |
EP0508533A3 (en) | 1993-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |