DE2522861C3 - Verfahren zum Herstellen eines magnetischen Wiedergabekopfes - Google Patents
Verfahren zum Herstellen eines magnetischen WiedergabekopfesInfo
- Publication number
- DE2522861C3 DE2522861C3 DE19752522861 DE2522861A DE2522861C3 DE 2522861 C3 DE2522861 C3 DE 2522861C3 DE 19752522861 DE19752522861 DE 19752522861 DE 2522861 A DE2522861 A DE 2522861A DE 2522861 C3 DE2522861 C3 DE 2522861C3
- Authority
- DE
- Germany
- Prior art keywords
- groove
- layer
- magnetic field
- substrate
- sensitive material
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000758 substrate Substances 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 14
- 239000010409 thin film Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 description 5
- 229910003271 Ni-Fe Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
-
- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
-
- 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
- G11B5/127—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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7406962A NL7406962A (nl) | 1974-05-24 | 1974-05-24 | Magneetkop welke gebruik maakt van een mag- neetveldgevoelig element en werkwijze voor het vervaardigen daarvan. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2522861A1 DE2522861A1 (de) | 1975-12-04 |
| DE2522861B2 DE2522861B2 (de) | 1978-04-27 |
| DE2522861C3 true DE2522861C3 (de) | 1978-12-21 |
Family
ID=19821421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752522861 Expired DE2522861C3 (de) | 1974-05-24 | 1975-05-23 | Verfahren zum Herstellen eines magnetischen Wiedergabekopfes |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS51319A (enExample) |
| BE (1) | BE829374A (enExample) |
| CA (1) | CA1047161A (enExample) |
| DE (1) | DE2522861C3 (enExample) |
| FR (1) | FR2272460B1 (enExample) |
| GB (1) | GB1497575A (enExample) |
| IT (1) | IT1038346B (enExample) |
| NL (1) | NL7406962A (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2003647B (en) * | 1977-09-02 | 1982-05-06 | Magnex Corp | Thin film magnetic recording heads |
| DE3204184A1 (de) * | 1982-02-06 | 1983-08-11 | Robert Bosch Gmbh, 7000 Stuttgart | Duennschicht-mehrspur-magnetkopf hoher spurdichte |
| NL8201846A (nl) * | 1982-05-06 | 1983-12-01 | Philips Nv | Sensor met een magneetveldgevoelig element en werkwijze voor het vervaardigen daarvan. |
| JPH0626008B2 (ja) * | 1984-11-16 | 1994-04-06 | 三洋電機株式会社 | 磁気抵抗効果型磁気ヘツド |
| ATE36088T1 (de) * | 1984-12-21 | 1988-08-15 | Siemens Ag | Duennfilm-magnetkopf auf einem nicht-magnetischen substrat zur senkrechten magnetisierung. |
| FR2671220B1 (fr) * | 1990-12-27 | 1995-02-17 | Thomson Csf | Procede de fabrication de capteurs magneto-resistifs, et dispositif magnetique realise suivant un tel procede. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5229607B2 (enExample) * | 1972-01-01 | 1977-08-03 |
-
1974
- 1974-05-24 NL NL7406962A patent/NL7406962A/xx unknown
-
1975
- 1975-05-21 CA CA227,485A patent/CA1047161A/en not_active Expired
- 1975-05-21 IT IT2360275A patent/IT1038346B/it active
- 1975-05-21 JP JP5980075A patent/JPS51319A/ja active Pending
- 1975-05-21 GB GB2180175A patent/GB1497575A/en not_active Expired
- 1975-05-22 BE BE156609A patent/BE829374A/xx unknown
- 1975-05-23 DE DE19752522861 patent/DE2522861C3/de not_active Expired
- 1975-05-23 FR FR7516123A patent/FR2272460B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2272460A1 (enExample) | 1975-12-19 |
| CA1047161A (en) | 1979-01-23 |
| FR2272460B1 (enExample) | 1978-09-01 |
| DE2522861A1 (de) | 1975-12-04 |
| IT1038346B (it) | 1979-11-20 |
| GB1497575A (en) | 1978-01-12 |
| DE2522861B2 (de) | 1978-04-27 |
| BE829374A (fr) | 1975-11-24 |
| JPS51319A (en) | 1976-01-06 |
| NL7406962A (nl) | 1975-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |