NL194772C - Magnetische transducentkop, alsmede werkwijze voor het vervaardigen ervan. - Google Patents
Magnetische transducentkop, alsmede werkwijze voor het vervaardigen ervan. Download PDFInfo
- Publication number
- NL194772C NL194772C NL8403971A NL8403971A NL194772C NL 194772 C NL194772 C NL 194772C NL 8403971 A NL8403971 A NL 8403971A NL 8403971 A NL8403971 A NL 8403971A NL 194772 C NL194772 C NL 194772C
- Authority
- NL
- Netherlands
- Prior art keywords
- magnetic
- metal thin
- thin film
- transducer head
- gap
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 350
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 165
- 239000002184 metal Substances 0.000 claims description 164
- 239000010409 thin film Substances 0.000 claims description 150
- 239000010408 film Substances 0.000 claims description 133
- 230000005294 ferromagnetic effect Effects 0.000 claims description 77
- 229910000859 α-Fe Inorganic materials 0.000 claims description 63
- 239000011521 glass Substances 0.000 claims description 34
- 239000013078 crystal Substances 0.000 claims description 32
- 230000035699 permeability Effects 0.000 claims description 27
- 230000008018 melting Effects 0.000 claims description 23
- 238000002844 melting Methods 0.000 claims description 23
- 229910045601 alloy Inorganic materials 0.000 claims description 22
- 239000000956 alloy Substances 0.000 claims description 22
- 239000000696 magnetic material Substances 0.000 claims description 19
- 230000004907 flux Effects 0.000 claims description 16
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 8
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 5
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000001771 vacuum deposition Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 77
- 229910000702 sendust Inorganic materials 0.000 description 47
- 239000010410 layer Substances 0.000 description 22
- 238000004544 sputter deposition Methods 0.000 description 21
- 238000005240 physical vapour deposition Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 16
- 239000012762 magnetic filler Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 210000003127 knee Anatomy 0.000 description 7
- 239000000945 filler Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 229910000676 Si alloy Inorganic materials 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 229910001004 magnetic alloy Inorganic materials 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 239000006060 molten glass Substances 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 241000283690 Bos taurus Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 229910018598 Si-Co Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910008453 Si—Co Inorganic materials 0.000 description 1
- -1 Ta 2 O 5 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000866 electrolytic etching Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- YTCQFLFGFXZUSN-BAQGIRSFSA-N microline Chemical compound OC12OC3(C)COC2(O)C(C(/Cl)=C/C)=CC(=O)C21C3C2 YTCQFLFGFXZUSN-BAQGIRSFSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 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
- G11B5/31—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
-
- 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25098883 | 1983-12-30 | ||
| JP58250988A JPS60229210A (ja) | 1983-12-30 | 1983-12-30 | 磁気ヘツド |
| JP7824284 | 1984-04-18 | ||
| JP59078242A JPS60223012A (ja) | 1984-04-18 | 1984-04-18 | 磁気ヘツド |
| JP9975184A JPS60243810A (ja) | 1984-05-18 | 1984-05-18 | 磁気ヘツド |
| JP9975184 | 1984-05-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL8403971A NL8403971A (nl) | 1985-07-16 |
| NL194772B NL194772B (nl) | 2002-10-01 |
| NL194772C true NL194772C (nl) | 2003-02-04 |
Family
ID=27302650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8403971A NL194772C (nl) | 1983-12-30 | 1984-12-31 | Magnetische transducentkop, alsmede werkwijze voor het vervaardigen ervan. |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT393566B (enrdf_load_stackoverflow) |
| AU (1) | AU582736B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1236212A (enrdf_load_stackoverflow) |
| DE (1) | DE3447700A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2558000B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2153581B (enrdf_load_stackoverflow) |
| IT (1) | IT1182707B (enrdf_load_stackoverflow) |
| NL (1) | NL194772C (enrdf_load_stackoverflow) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654527B2 (ja) * | 1984-11-26 | 1994-07-20 | ソニー株式会社 | 磁気ヘツド |
| DE3634305A1 (de) * | 1985-10-09 | 1987-04-16 | Canon Kk | Magnetkopf |
| EP0223933B1 (de) * | 1985-11-29 | 1992-12-02 | GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. | Verfahren zur Herstellung von Magnetköpfen |
| JPH0654528B2 (ja) * | 1986-04-23 | 1994-07-20 | 株式会社日立製作所 | 磁気ヘツド |
| JPS62266712A (ja) * | 1986-05-14 | 1987-11-19 | Mitsubishi Electric Corp | 複合型磁気ヘツド |
| EP0246706B1 (en) * | 1986-05-21 | 1991-05-08 | Koninklijke Philips Electronics N.V. | Magnetic transducing head having clad core faces |
| JPS6370912A (ja) * | 1986-09-12 | 1988-03-31 | Hitachi Ltd | 磁気ヘツドギヤツプ接合用ガラス |
| JPS63146202A (ja) * | 1986-12-09 | 1988-06-18 | Canon Electronics Inc | 磁気ヘツド及びその製造方法 |
| JP2513205B2 (ja) * | 1987-02-04 | 1996-07-03 | ソニー株式会社 | 複合磁気ヘツド |
| JPH06162436A (ja) * | 1992-06-16 | 1994-06-10 | Samsung Electro Mech Co Ltd | 複合型磁気ヘッド |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL263324A (enrdf_load_stackoverflow) * | 1961-04-07 | |||
| US4219855A (en) * | 1978-12-21 | 1980-08-26 | International Business Machines Corporation | Thin film magnetic head |
| JPS56124112A (en) * | 1980-03-06 | 1981-09-29 | Matsushita Electric Ind Co Ltd | Magnetic head |
| JPS56124111A (en) * | 1980-03-06 | 1981-09-29 | Matsushita Electric Ind Co Ltd | Production of magnetic head |
| JPS56169214A (en) * | 1980-06-02 | 1981-12-25 | Nippon Hoso Kyokai <Nhk> | Magnetic head |
| KR850001445B1 (ko) * | 1981-03-10 | 1985-10-05 | 이우에 가오루 | 자기헤드 |
| JPS58155513A (ja) * | 1982-03-10 | 1983-09-16 | Hitachi Ltd | 複合型磁気ヘツドおよびその製造方法 |
| JPS58175122A (ja) * | 1982-04-07 | 1983-10-14 | Hitachi Ltd | 磁気ヘッドおよびその製造方法 |
| JPS598120A (ja) * | 1982-07-05 | 1984-01-17 | Sharp Corp | 磁気ヘツドの製造方法 |
| JPS59207415A (ja) * | 1983-05-11 | 1984-11-24 | Hitachi Ltd | 複合型磁気ヘツドおよびその製造方法 |
-
1984
- 1984-12-18 CA CA000470379A patent/CA1236212A/en not_active Expired
- 1984-12-21 GB GB08432443A patent/GB2153581B/en not_active Expired
- 1984-12-21 AU AU37074/84A patent/AU582736B2/en not_active Expired
- 1984-12-27 IT IT49363/84A patent/IT1182707B/it active
- 1984-12-28 DE DE3447700A patent/DE3447700A1/de active Granted
- 1984-12-28 AT AT4127/84A patent/AT393566B/de not_active IP Right Cessation
- 1984-12-28 FR FR8420082A patent/FR2558000B1/fr not_active Expired - Lifetime
- 1984-12-31 NL NL8403971A patent/NL194772C/nl not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2153581A (en) | 1985-08-21 |
| GB2153581B (en) | 1988-05-25 |
| CA1236212A (en) | 1988-05-03 |
| DE3447700A1 (de) | 1985-07-25 |
| IT8449363A0 (it) | 1984-12-27 |
| AU3707484A (en) | 1985-07-04 |
| FR2558000A1 (fr) | 1985-07-12 |
| NL8403971A (nl) | 1985-07-16 |
| AU582736B2 (en) | 1989-04-13 |
| DE3447700C2 (enrdf_load_stackoverflow) | 1993-02-18 |
| GB8432443D0 (en) | 1985-02-06 |
| IT8449363A1 (it) | 1986-06-27 |
| ATA412784A (de) | 1991-04-15 |
| IT1182707B (it) | 1987-10-05 |
| NL194772B (nl) | 2002-10-01 |
| AT393566B (de) | 1991-11-11 |
| FR2558000B1 (fr) | 1994-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| V4 | Discontinued because of reaching the maximum lifetime of a patent |
Effective date: 20041231 |