CH624504A5 - - Google Patents
Download PDFInfo
- Publication number
- CH624504A5 CH624504A5 CH1091177A CH1091177A CH624504A5 CH 624504 A5 CH624504 A5 CH 624504A5 CH 1091177 A CH1091177 A CH 1091177A CH 1091177 A CH1091177 A CH 1091177A CH 624504 A5 CH624504 A5 CH 624504A5
- Authority
- CH
- Switzerland
- Prior art keywords
- magnetic
- layers
- face
- magnetic head
- substrate
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims 12
- 238000010849 ion bombardment Methods 0.000 claims 10
- 238000000034 method Methods 0.000 claims 5
- 238000004804 winding Methods 0.000 claims 5
- 238000012545 processing Methods 0.000 claims 4
- 230000003628 erosive effect Effects 0.000 claims 2
- 150000002500 ions Chemical class 0.000 claims 2
- 238000003754 machining Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000013021 overheating Methods 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000005498 polishing Methods 0.000 claims 1
- 238000012805 post-processing Methods 0.000 claims 1
- 238000004544 sputter deposition Methods 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
-
- 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
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
-
- 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)
- Power Engineering (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772721201 DE2721201A1 (de) | 1977-05-11 | 1977-05-11 | Verfahren zur herstellung integrierter magnetkopfstrukturen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH624504A5 true CH624504A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1981-07-31 |
Family
ID=6008632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1091177A CH624504A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-05-11 | 1977-09-07 |
Country Status (9)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4425701A (en) | 1980-10-17 | 1984-01-17 | Matsushita Electric Industrial Co., Ltd. | Methods of making magnetic recording heads |
| US4436593A (en) * | 1981-07-13 | 1984-03-13 | Memorex Corporation | Self-aligned pole tips |
| US4418472A (en) * | 1981-11-23 | 1983-12-06 | Xerox Corporation | Method of delineating thin film magnetic head arrays |
| NL8200531A (nl) * | 1982-02-12 | 1983-09-01 | Philips Nv | Magneetkop met gedeeltelijk uitgeetste wikkelopening. |
| JPS60133516A (ja) * | 1983-12-22 | 1985-07-16 | Hitachi Ltd | 薄膜磁気ヘツドの製造方法 |
| US4878290A (en) * | 1989-02-13 | 1989-11-07 | International Business Machines Corporation | Method for making thin film magnetic head |
| DE69117323T2 (de) | 1990-04-16 | 1996-07-11 | Hitachi Ltd | Dünnfilm-Magnetkopf mit schmaler Spurbreite und dessen Herstellungsverfahren |
| US6651313B1 (en) | 2000-10-06 | 2003-11-25 | International Business Machines Corporation | Method for manufacturing a magnetic head |
| US7086139B2 (en) * | 2004-04-30 | 2006-08-08 | Hitachi Global Storage Technologies Netherlands B.V. | Methods of making magnetic write heads using electron beam lithography |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3514851A (en) * | 1967-04-03 | 1970-06-02 | Control Data Corp | Method of manufacturing a magnetic head structure |
| FR2209154B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-07-03 | 1975-04-11 | Cii | |
| FR2297475A1 (fr) * | 1975-01-10 | 1976-08-06 | Cii | Perfectionnements exportes aux structures de tetes magnetiques du type dit " integre " |
| US4017965A (en) * | 1975-06-16 | 1977-04-19 | Burroughs Corporation | Method of making a transducer head with narrow core structure |
-
1977
- 1977-05-11 DE DE19772721201 patent/DE2721201A1/de not_active Ceased
- 1977-07-21 AT AT530577A patent/AT348281B/de not_active IP Right Cessation
- 1977-08-04 GB GB32678/77A patent/GB1549477A/en not_active Expired
- 1977-09-07 CH CH1091177A patent/CH624504A5/de not_active IP Right Cessation
- 1977-09-15 US US05/833,487 patent/US4192985A/en not_active Expired - Lifetime
- 1977-09-29 IT IT28071/77A patent/IT1086962B/it active
- 1977-10-14 NL NL7711323A patent/NL7711323A/xx not_active Application Discontinuation
- 1977-10-14 BE BE181768A patent/BE859755A/xx unknown
- 1977-12-21 JP JP15427377A patent/JPS53139515A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ATA530577A (de) | 1978-06-15 |
| GB1549477A (en) | 1979-08-08 |
| JPS53139515A (en) | 1978-12-05 |
| AT348281B (de) | 1979-02-12 |
| DE2721201A1 (de) | 1978-11-16 |
| IT1086962B (it) | 1985-05-31 |
| NL7711323A (nl) | 1978-11-14 |
| US4192985A (en) | 1980-03-11 |
| BE859755A (fr) | 1978-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |