CA1235483A - Magnetic transducer head - Google Patents
Magnetic transducer headInfo
- Publication number
- CA1235483A CA1235483A CA000476839A CA476839A CA1235483A CA 1235483 A CA1235483 A CA 1235483A CA 000476839 A CA000476839 A CA 000476839A CA 476839 A CA476839 A CA 476839A CA 1235483 A CA1235483 A CA 1235483A
- Authority
- CA
- Canada
- Prior art keywords
- magnetic
- metal thin
- transducer head
- thin film
- film
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 293
- 229910052751 metal Inorganic materials 0.000 claims abstract description 152
- 239000002184 metal Substances 0.000 claims abstract description 151
- 239000010409 thin film Substances 0.000 claims abstract description 135
- 239000010408 film Substances 0.000 claims abstract description 113
- 229910045601 alloy Inorganic materials 0.000 claims description 33
- 239000000956 alloy Substances 0.000 claims description 33
- 239000011521 glass Substances 0.000 claims description 30
- 229910000859 α-Fe Inorganic materials 0.000 claims description 27
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 11
- 239000000696 magnetic material Substances 0.000 claims description 8
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 claims description 3
- 229910052752 metalloid Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims 1
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract description 134
- 239000000075 oxide glass Substances 0.000 abstract description 32
- 239000000945 filler Substances 0.000 abstract description 24
- 239000006060 molten glass Substances 0.000 abstract description 13
- 238000005240 physical vapour deposition Methods 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 56
- 239000010410 layer Substances 0.000 description 29
- 238000004544 sputter deposition Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 15
- 230000004907 flux Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 239000002131 composite material Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000000151 deposition Methods 0.000 description 8
- 230000035699 permeability Effects 0.000 description 8
- 241000282320 Panthera leo Species 0.000 description 5
- 125000004430 oxygen atom Chemical group O* 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 235000018936 Vitellaria paradoxa Nutrition 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- 238000009751 slip forming Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- -1 Phallus alloys Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 238000000866 electrolytic etching Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 230000037303 wrinkles 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
-
- 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
- G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
- G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
- G11B5/1878—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film disposed immediately adjacent to the transducing gap, e.g. "Metal-In-Gap" structure
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61852/84 | 1984-03-29 | ||
| JP59061852A JPS60205808A (ja) | 1984-03-29 | 1984-03-29 | 磁気ヘツド |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1235483A true CA1235483A (en) | 1988-04-19 |
Family
ID=13183036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000476839A Expired CA1235483A (en) | 1984-03-29 | 1985-03-19 | Magnetic transducer head |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS60205808A (enrdf_load_stackoverflow) |
| KR (1) | KR930002392B1 (enrdf_load_stackoverflow) |
| CA (1) | CA1235483A (enrdf_load_stackoverflow) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62141613A (ja) * | 1985-12-17 | 1987-06-25 | Matsushita Electric Ind Co Ltd | 磁気ヘツド |
| JPH0772927B2 (ja) * | 1985-12-18 | 1995-08-02 | ソニー株式会社 | 磁気ヘツド |
| JPS62145511A (ja) * | 1985-12-20 | 1987-06-29 | Hitachi Ltd | 磁気ヘツド |
| JPH0758527B2 (ja) * | 1986-01-10 | 1995-06-21 | 株式会社日立製作所 | 磁気ヘツド |
| JPS62291709A (ja) * | 1986-06-10 | 1987-12-18 | Akai Electric Co Ltd | 磁気ヘツドの製造方法 |
| JPH0656645B2 (ja) * | 1986-06-13 | 1994-07-27 | アルプス電気株式会社 | 磁気ヘツド |
| JPH0727612B2 (ja) * | 1986-12-09 | 1995-03-29 | アルプス電気株式会社 | 磁気ヘツドコア |
| JP2567725B2 (ja) * | 1990-08-31 | 1996-12-25 | 三洋電機株式会社 | 浮動型磁気ヘッドの製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55117723A (en) * | 1979-02-28 | 1980-09-10 | Sony Corp | Magnetic head |
| JPS56169214A (en) * | 1980-06-02 | 1981-12-25 | Nippon Hoso Kyokai <Nhk> | Magnetic head |
| 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 |
| JPS59142716A (ja) * | 1983-02-04 | 1984-08-16 | Hitachi Ltd | 磁気ヘツドおよびその製造方法 |
-
1984
- 1984-03-29 JP JP59061852A patent/JPS60205808A/ja active Granted
-
1985
- 1985-03-19 CA CA000476839A patent/CA1235483A/en not_active Expired
- 1985-03-29 KR KR1019850002104A patent/KR930002392B1/ko not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60205808A (ja) | 1985-10-17 |
| JPH0475563B2 (enrdf_load_stackoverflow) | 1992-12-01 |
| KR930002392B1 (ko) | 1993-03-30 |
| KR850006946A (ko) | 1985-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |