DE2907806C2 - Magnetkopf - Google Patents
MagnetkopfInfo
- Publication number
- DE2907806C2 DE2907806C2 DE2907806A DE2907806A DE2907806C2 DE 2907806 C2 DE2907806 C2 DE 2907806C2 DE 2907806 A DE2907806 A DE 2907806A DE 2907806 A DE2907806 A DE 2907806A DE 2907806 C2 DE2907806 C2 DE 2907806C2
- Authority
- DE
- Germany
- Prior art keywords
- adhesive material
- core
- magnetic head
- thin plate
- head according
- 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
- 239000000463 material Substances 0.000 claims description 63
- 239000000853 adhesive Substances 0.000 claims description 47
- 230000001070 adhesive effect Effects 0.000 claims description 47
- 239000000126 substance Substances 0.000 claims description 35
- 230000035699 permeability Effects 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 239000003822 epoxy resin Substances 0.000 claims description 15
- 229920000647 polyepoxide Polymers 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 7
- 150000001247 metal acetylides Chemical class 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910021332 silicide Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims 1
- 238000005299 abrasion Methods 0.000 description 41
- 239000010410 layer Substances 0.000 description 22
- 229910020647 Co-O Inorganic materials 0.000 description 11
- 229910020704 Co—O Inorganic materials 0.000 description 11
- 229910018553 Ni—O Inorganic materials 0.000 description 11
- 229910017135 Fe—O Inorganic materials 0.000 description 10
- 229910018098 Ni-Si Inorganic materials 0.000 description 10
- 229910018529 Ni—Si Inorganic materials 0.000 description 10
- 229910017082 Fe-Si Inorganic materials 0.000 description 8
- 229910017133 Fe—Si Inorganic materials 0.000 description 8
- 229910018663 Mn O Inorganic materials 0.000 description 8
- 229910003176 Mn-O Inorganic materials 0.000 description 8
- 229910020711 Co—Si Inorganic materials 0.000 description 7
- 229910017305 Mo—Si Inorganic materials 0.000 description 7
- 229910008938 W—Si Inorganic materials 0.000 description 7
- 229910000702 sendust Inorganic materials 0.000 description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 6
- 229910017299 Mo—O Inorganic materials 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 229910000889 permalloy Inorganic materials 0.000 description 6
- 229910020674 Co—B Inorganic materials 0.000 description 5
- 229910018643 Mn—Si Inorganic materials 0.000 description 5
- 229910017263 Mo—C Inorganic materials 0.000 description 5
- 229910020676 Co—N Inorganic materials 0.000 description 4
- 229910017262 Mo—B Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 229910019819 Cr—Si Inorganic materials 0.000 description 3
- 229910018648 Mn—N Inorganic materials 0.000 description 3
- 229910020010 Nb—Si Inorganic materials 0.000 description 3
- -1 SiO 2 Chemical class 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910019590 Cr-N Inorganic materials 0.000 description 2
- 229910019588 Cr—N Inorganic materials 0.000 description 2
- 229910017112 Fe—C Inorganic materials 0.000 description 2
- 229910005705 Ge—B Inorganic materials 0.000 description 2
- 229910003839 Hf—Si Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910007744 Zr—N Inorganic materials 0.000 description 2
- 229910007746 Zr—O Inorganic materials 0.000 description 2
- 229910007735 Zr—Si Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910020222 Pb—Si Inorganic materials 0.000 description 1
- 229910021078 Pd—O Inorganic materials 0.000 description 1
- 229910019596 Rh—Si Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 229910004339 Ti-Si Inorganic materials 0.000 description 1
- 229910011208 Ti—N Inorganic materials 0.000 description 1
- 229910010978 Ti—Si Inorganic materials 0.000 description 1
- 229910003077 Ti−O Inorganic materials 0.000 description 1
- 229910007729 Zr W Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910001845 yogo sapphire 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
- G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
-
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/105—Mounting of head within housing or assembling of head and housing
-
- 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
- G11B5/21—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being of ferrous sheet metal or other magnetic layers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2322178A JPS54116209A (en) | 1978-03-01 | 1978-03-01 | Magnetic head |
| JP2561178A JPS54118813A (en) | 1978-03-07 | 1978-03-07 | Magnetic head |
| JP732179A JPS55101121A (en) | 1979-01-23 | 1979-01-23 | Magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2907806A1 DE2907806A1 (de) | 1980-01-10 |
| DE2907806C2 true DE2907806C2 (de) | 1987-01-15 |
Family
ID=27277561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2907806A Expired DE2907806C2 (de) | 1978-03-01 | 1979-02-28 | Magnetkopf |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4368496A (US07993877-20110809-P00003.png) |
| DE (1) | DE2907806C2 (US07993877-20110809-P00003.png) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745509A (en) * | 1981-08-21 | 1988-05-17 | Matsushita Electric Industrial Company, Limited | Magnetic head with improved supporter for perpendicular magnetization recording |
| US4745505A (en) * | 1983-07-04 | 1988-05-17 | U.S. Philips Corporation | Magnetic head with a modified gap filler |
| JPS61126606A (ja) * | 1984-11-22 | 1986-06-14 | Alps Electric Co Ltd | 垂直磁気記録用磁気ヘツド |
| EP0191447B1 (en) * | 1985-02-15 | 1992-05-13 | Matsushita Electric Industrial Co., Ltd. | Magnetic head |
| US5032944A (en) * | 1989-01-12 | 1991-07-16 | Mitsubishi Denki Kabushiki Kaisha | Membrane type magnetic head |
| JPH05182127A (ja) * | 1992-01-08 | 1993-07-23 | Matsushita Electric Ind Co Ltd | 磁気ヘッドおよび磁気記録装置 |
| JPH0644516A (ja) * | 1992-07-24 | 1994-02-18 | Matsushita Electric Ind Co Ltd | 磁気ヘッド |
| ES2070701B1 (es) * | 1992-12-31 | 1997-07-01 | Alcatel Standard Electrica | Metodo de relajacion de tensiones internas en nucleos de cabezas sensoras de campos magneticos. |
| US5910335A (en) * | 1995-05-09 | 1999-06-08 | Daido Tokushuko Kabushiki Kaisha | Product bonded with resin paint and the process of bonding |
| JPH1196520A (ja) * | 1997-09-17 | 1999-04-09 | Fujitsu Ltd | 磁気ヘッド及びその製造方法並びに該磁気ヘッドを備えた磁気記録装置 |
| US6198608B1 (en) | 1999-03-18 | 2001-03-06 | Read-Rite Corporation | MR sensor with blunt contiguous junction and slow-milling-rate read gap |
| CN103918048B (zh) * | 2011-11-08 | 2016-09-28 | 株式会社东芝 | 非接触受电装置用磁性片材和使用该磁性片材的非接触受电装置、电子设备、以及非接触充电装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE961662C (de) * | 1953-09-10 | 1957-04-11 | Telefunken Gmbh | Spaltfuellung fuer Magnetisierungskopf |
| US3417465A (en) * | 1964-05-19 | 1968-12-24 | Minnesota Mining & Mfg | Method of making laminated magnetic head |
| DE1931003C3 (de) * | 1969-06-19 | 1978-04-13 | Robert Bosch Gmbh, 7000 Stuttgart | Magnetkopf für ein Magnetspeichergerät |
| BE789510A (fr) * | 1971-09-30 | 1973-03-29 | Siemens Ag | Noyau magnetique feuillete pour des tetes d'ecriture, de lecture et d'effacement dans des appareils a memoire a couche magnetique |
| GB1440968A (en) * | 1973-06-28 | 1976-06-30 | Whetstone Clayton N | Laminated magnetically soft material and method of making same |
| SU504234A1 (ru) * | 1974-07-04 | 1976-02-25 | Предприятие П/Я Г-4677 | Магнитна головка |
| DD121998A1 (US07993877-20110809-P00003.png) * | 1975-10-09 | 1976-09-05 | ||
| SU601746A1 (ru) * | 1976-11-18 | 1978-04-05 | Всесоюзный научно-исследовательский институт телевидения и радиовещания | Способ изготовлени сердечника магнитной головки |
-
1979
- 1979-02-28 DE DE2907806A patent/DE2907806C2/de not_active Expired
-
1981
- 1981-01-29 US US06/230,107 patent/US4368496A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2907806A1 (de) | 1980-01-10 |
| US4368496A (en) | 1983-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |