SG44623A1 - A method of manufacturing a thin film magnetic transducer - Google Patents
A method of manufacturing a thin film magnetic transducerInfo
- Publication number
- SG44623A1 SG44623A1 SG1996004321A SG1996004321A SG44623A1 SG 44623 A1 SG44623 A1 SG 44623A1 SG 1996004321 A SG1996004321 A SG 1996004321A SG 1996004321 A SG1996004321 A SG 1996004321A SG 44623 A1 SG44623 A1 SG 44623A1
- Authority
- SG
- Singapore
- Prior art keywords
- manufacturing
- thin film
- film magnetic
- magnetic transducer
- transducer
- Prior art date
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
-
- 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
-
- 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
- Y10T29/49044—Plural magnetic deposition layers
-
- 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
- Y10T29/4906—Providing winding
- Y10T29/49064—Providing winding by coating
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/480,278 US4992901A (en) | 1990-02-15 | 1990-02-15 | Self aligned magnetic poles using sacrificial mask |
Publications (1)
Publication Number | Publication Date |
---|---|
SG44623A1 true SG44623A1 (en) | 1997-12-19 |
Family
ID=23907350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996004321A SG44623A1 (en) | 1990-02-15 | 1990-12-14 | A method of manufacturing a thin film magnetic transducer |
Country Status (7)
Country | Link |
---|---|
US (1) | US4992901A (fr) |
EP (1) | EP0442212B1 (fr) |
JP (1) | JPH0778859B2 (fr) |
KR (1) | KR100264700B1 (fr) |
DE (1) | DE69032935T2 (fr) |
HK (1) | HK1012462A1 (fr) |
SG (1) | SG44623A1 (fr) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079035A (en) * | 1989-10-10 | 1992-01-07 | International Business Machines Corporation | Method of making a magnetoresistive read transducer having hard magnetic bias |
US5141623A (en) * | 1990-02-15 | 1992-08-25 | Seagate Technology, Inc. | Method for aligning pole tips in a thin film head |
JPH0410208A (ja) * | 1990-04-27 | 1992-01-14 | Hitachi Ltd | 薄膜磁気ヘッド及びその製造方法 |
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 |
US5084957A (en) * | 1990-11-06 | 1992-02-04 | Seagate Technology, Inc. | Method for aligning thin film head pole tips |
US5256249A (en) * | 1991-09-17 | 1993-10-26 | Seagate Technology, Inc. | Method of manufacturing a planarized magnetoresistive sensor |
US5283942A (en) * | 1992-12-29 | 1994-02-08 | International Business Machines Corporation | Sacrificial layer planarization process for fabricating a narrow thin film inductive head |
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 |
US5699605A (en) * | 1994-05-23 | 1997-12-23 | Seagate Technology, Inc. | Method for forming a magnetic thin film head with recessed basecoat |
US5572392A (en) * | 1994-11-17 | 1996-11-05 | International Business Machines Corporation | Arbitrary pattern write head assembly for writing timing-based servo patterns on magnetic storage media |
US5901431A (en) * | 1995-06-07 | 1999-05-11 | International Business Machines Corporation | Method of fabricating a thin film inductive head having a second pole piece having a mushroom yoke portion |
US5578342A (en) * | 1995-07-05 | 1996-11-26 | Read-Rite Corporation | Alignment of magnetic poles of thin film transducer |
JP3349925B2 (ja) * | 1996-09-10 | 2002-11-25 | アルプス電気株式会社 | 薄膜磁気ヘッドの製造方法 |
JP2953401B2 (ja) * | 1996-10-04 | 1999-09-27 | 日本電気株式会社 | 磁気抵抗効果型複合ヘッドの製造方法 |
US5804085A (en) * | 1997-01-30 | 1998-09-08 | Quantum Corporation | Process for producing a pole-trimmed writer in a magnetoresistive read/write head and a data transducer made thereby |
JPH10247305A (ja) * | 1997-03-03 | 1998-09-14 | Sanyo Electric Co Ltd | 複合型薄膜磁気ヘッドの製造方法 |
JP3466041B2 (ja) * | 1997-03-03 | 2003-11-10 | アルプス電気株式会社 | 磁気ヘッドおよびその製造方法 |
JPH117608A (ja) * | 1997-04-25 | 1999-01-12 | Fujitsu Ltd | 磁気ヘッド及びその製造方法 |
US5916423A (en) * | 1997-05-06 | 1999-06-29 | International Business Machines Corporation | P1 notched write head with minimum overmilled p1 and p2 |
US6586049B2 (en) * | 1997-08-28 | 2003-07-01 | Tdk Corporation | Patterning method using mask and manufacturing method for composite type thin film magnetic head using the patterning method |
US6031695A (en) * | 1997-09-05 | 2000-02-29 | International Business Machines Corporation | Combined read head and write head with non-magnetic electrically conductive layer on upper pole tip thereof |
US5940250A (en) * | 1997-10-21 | 1999-08-17 | Maxtor Corporation | Disk drive head having a read wide/write narrow architecture |
US6158107A (en) * | 1998-04-02 | 2000-12-12 | International Business Machines Corporation | Inverted merged MR head with plated notched first pole tip and self-aligned second pole tip |
US6055138A (en) * | 1998-05-06 | 2000-04-25 | Read-Rite Corporation | Thin film pedestal pole tips write head having narrower lower pedestal pole tip |
US6490125B1 (en) | 1999-04-09 | 2002-12-03 | Read-Rite Corporation | Thin film write head with improved yoke to pole stitch |
JP2003507006A (ja) | 1999-05-20 | 2003-02-25 | サイオス,インコーポレーテッド | 血管内皮増殖因子改変体 |
WO2000071716A2 (fr) * | 1999-05-20 | 2000-11-30 | Scios Inc. | Dimeres, facteurs de croissance de l'endothelium vasculaire |
US6383597B1 (en) * | 2000-06-21 | 2002-05-07 | International Business Machines Corporation | Magnetic recording media with magnetic bit regions patterned by ion irradiation |
US6713237B2 (en) | 2000-07-27 | 2004-03-30 | Seagate Technology Llc | Single layer lift-off method for making an electronic device |
US6788496B2 (en) | 2001-08-22 | 2004-09-07 | Seagate Technology Llc | Narrow top pole of a write element |
US7320170B2 (en) * | 2004-04-20 | 2008-01-22 | Headway Technologies, Inc. | Xenon ion beam to improve track width definition |
US9147407B2 (en) | 2013-03-12 | 2015-09-29 | Seagate Technology Llc | Write head having non-magnetic write gap seed layer, and method |
US9214167B2 (en) * | 2013-03-12 | 2015-12-15 | Seagate Technology Llc | Main pole layer with at least tow sacrificial layers and a gap layer |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4024041A (en) * | 1974-12-18 | 1977-05-17 | Hitachi, Ltd. | Method of forming deposition films for use in multi-layer metallization |
JPS54114223A (en) * | 1978-02-27 | 1979-09-06 | Nippon Telegr & Teleph Corp <Ntt> | Production of floating type thin film magnetic head |
US4422117A (en) * | 1980-04-11 | 1983-12-20 | Matsushita Electric Industrial Co., Ltd. | Thin film magnetic head and method of making it |
US4436593A (en) * | 1981-07-13 | 1984-03-13 | Memorex Corporation | Self-aligned pole tips |
JPS59104717A (ja) * | 1982-12-08 | 1984-06-16 | Comput Basic Mach Technol Res Assoc | 薄膜磁気ヘツドおよびその製造方法 |
JPH061769B2 (ja) * | 1983-08-10 | 1994-01-05 | 株式会社日立製作所 | アルミナ膜のパターニング方法 |
JPS60133516A (ja) * | 1983-12-22 | 1985-07-16 | Hitachi Ltd | 薄膜磁気ヘツドの製造方法 |
ATE36088T1 (de) * | 1984-12-21 | 1988-08-15 | Siemens Ag | Duennfilm-magnetkopf auf einem nicht-magnetischen substrat zur senkrechten magnetisierung. |
DE3513431A1 (de) * | 1985-04-15 | 1986-10-23 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur herstellung mindestens eines magnetkopfes in duennfilmtechnik |
DE3735148A1 (de) * | 1987-10-16 | 1989-05-03 | Siemens Ag | Duennfilm-magnetkopf mit schichtweisem aufbau |
JPH01173308A (ja) * | 1987-12-28 | 1989-07-10 | Hitachi Ltd | 薄膜磁気ヘッドの製造方法 |
US4912584A (en) * | 1988-03-09 | 1990-03-27 | Digital Equipment Corporation | Method for fabricating magnetic recording poles |
US5116719A (en) * | 1990-02-15 | 1992-05-26 | Seagate Technology, Inc. | Top pole profile for pole tip trimming |
-
1990
- 1990-02-15 US US07/480,278 patent/US4992901A/en not_active Expired - Lifetime
- 1990-11-20 JP JP2313035A patent/JPH0778859B2/ja not_active Expired - Lifetime
- 1990-12-14 DE DE69032935T patent/DE69032935T2/de not_active Expired - Fee Related
- 1990-12-14 EP EP90313689A patent/EP0442212B1/fr not_active Expired - Lifetime
- 1990-12-14 SG SG1996004321A patent/SG44623A1/en unknown
-
1991
- 1991-02-13 KR KR1019910002420A patent/KR100264700B1/ko not_active IP Right Cessation
-
1998
- 1998-12-15 HK HK98113407A patent/HK1012462A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0442212A2 (fr) | 1991-08-21 |
KR910015967A (ko) | 1991-09-30 |
JPH03242810A (ja) | 1991-10-29 |
US4992901A (en) | 1991-02-12 |
HK1012462A1 (en) | 1999-07-30 |
KR100264700B1 (ko) | 2000-09-01 |
EP0442212A3 (en) | 1993-01-20 |
DE69032935T2 (de) | 1999-06-10 |
JPH0778859B2 (ja) | 1995-08-23 |
EP0442212B1 (fr) | 1999-02-03 |
DE69032935D1 (de) | 1999-03-18 |
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