CA1234626A - Magnetic transducer head - Google Patents
Magnetic transducer headInfo
- Publication number
- CA1234626A CA1234626A CA000476838A CA476838A CA1234626A CA 1234626 A CA1234626 A CA 1234626A CA 000476838 A CA000476838 A CA 000476838A CA 476838 A CA476838 A CA 476838A CA 1234626 A CA1234626 A CA 1234626A
- Authority
- CA
- Canada
- Prior art keywords
- magnetic
- metal thin
- thin film
- transducer head
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 330
- 229910052751 metal Inorganic materials 0.000 claims abstract description 161
- 239000002184 metal Substances 0.000 claims abstract description 160
- 239000010409 thin film Substances 0.000 claims abstract description 142
- 239000010408 film Substances 0.000 claims abstract description 110
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 37
- 239000011521 glass Substances 0.000 claims description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 229910052681 coesite Inorganic materials 0.000 claims description 11
- 229910052906 cristobalite Inorganic materials 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- 229910052682 stishovite Inorganic materials 0.000 claims description 11
- 229910052905 tridymite Inorganic materials 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 11
- 239000000696 magnetic material Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 5
- 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
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-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
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 230000005294 ferromagnetic effect Effects 0.000 description 128
- 239000000758 substrate Substances 0.000 description 58
- 238000009740 moulding (composite fabrication) Methods 0.000 description 48
- 239000010410 layer Substances 0.000 description 30
- 239000000075 oxide glass Substances 0.000 description 29
- 238000004544 sputter deposition Methods 0.000 description 24
- 239000000945 filler Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 18
- 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
- 239000006060 molten glass Substances 0.000 description 11
- 238000005240 physical vapour deposition Methods 0.000 description 10
- 238000000151 deposition Methods 0.000 description 8
- 230000035699 permeability Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 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
- 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
- 230000003628 erosive effect Effects 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 2
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 description 2
- 229910052729 chemical element Inorganic materials 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
- 229910052732 germanium Inorganic materials 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 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
- 229910052718 tin Inorganic materials 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- -1 Fe-Al-Si alloys Chemical class 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
- 229910018598 Si-Co Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910008453 Si—Co Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 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
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 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
- 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
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000036961 partial effect Effects 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
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible 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
- 229910000702 sendust Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052720 vanadium 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 |
|---|---|---|---|
| JP59124805A JPS613311A (ja) | 1984-06-18 | 1984-06-18 | 磁気ヘツド |
| JP124805/84 | 1984-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1234626A true CA1234626A (en) | 1988-03-29 |
Family
ID=14894556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000476838A Expired CA1234626A (en) | 1984-06-18 | 1985-03-19 | Magnetic transducer head |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS613311A (en]) |
| KR (1) | KR930002393B1 (en]) |
| CA (1) | CA1234626A (en]) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62117706U (en]) * | 1986-01-17 | 1987-07-27 | ||
| JP2535819B2 (ja) * | 1986-01-21 | 1996-09-18 | ソニー株式会社 | 薄膜磁気ヘッドの製造方法 |
| JPH0772926B2 (ja) * | 1986-02-12 | 1995-08-02 | ソニー株式会社 | 磁気ヘツドの製造方法 |
| JPS644905A (en) * | 1987-06-29 | 1989-01-10 | Sony Corp | Composite magnetic head |
| JPH01155509A (ja) * | 1987-12-14 | 1989-06-19 | Alps Electric Co Ltd | 磁気ヘッド |
| JPH01177406U (en]) * | 1988-05-31 | 1989-12-19 | ||
| JPH02141911A (ja) * | 1988-11-22 | 1990-05-31 | Tdk Corp | 磁気ヘッド |
| JPH02192006A (ja) * | 1988-11-30 | 1990-07-27 | Mitsumi Electric Co Ltd | 磁気ヘッドとその製造方法 |
| US5328583A (en) * | 1991-11-05 | 1994-07-12 | Canon Kabushiki Kaisha | Sputtering apparatus and process for forming lamination film employing the apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55129921A (en) * | 1980-02-06 | 1980-10-08 | Nippon Gakki Seizo Kk | Production of magnetic core |
| 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 |
-
1984
- 1984-06-18 JP JP59124805A patent/JPS613311A/ja active Granted
-
1985
- 1985-03-19 CA CA000476838A patent/CA1234626A/en not_active Expired
- 1985-04-18 KR KR1019850002622A patent/KR930002393B1/ko not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR930002393B1 (ko) | 1993-03-30 |
| JPS613311A (ja) | 1986-01-09 |
| KR860000629A (ko) | 1986-01-29 |
| JPH0475566B2 (en]) | 1992-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |