JPH0475566B2 - - Google Patents
Info
- Publication number
- JPH0475566B2 JPH0475566B2 JP59124805A JP12480584A JPH0475566B2 JP H0475566 B2 JPH0475566 B2 JP H0475566B2 JP 59124805 A JP59124805 A JP 59124805A JP 12480584 A JP12480584 A JP 12480584A JP H0475566 B2 JPH0475566 B2 JP H0475566B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- metal thin
- magnetic head
- thin film
- ferromagnetic
- 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 - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 173
- 230000005294 ferromagnetic effect Effects 0.000 claims description 74
- 229910052751 metal Inorganic materials 0.000 claims description 69
- 239000002184 metal Substances 0.000 claims description 69
- 239000010409 thin film Substances 0.000 claims description 69
- 239000010408 film Substances 0.000 claims description 61
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 description 30
- 229910000859 α-Fe Inorganic materials 0.000 description 27
- 239000000758 substrate Substances 0.000 description 26
- 239000010410 layer Substances 0.000 description 25
- 239000011521 glass Substances 0.000 description 21
- 239000000696 magnetic material Substances 0.000 description 18
- 229910000702 sendust Inorganic materials 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- 230000035699 permeability Effects 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- -1 Ta 2 O 5 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000866 electrolytic etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage 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
- G11B5/187—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)
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59124805A JPS613311A (ja) | 1984-06-18 | 1984-06-18 | 磁気ヘツド |
| AU40056/85A AU578273B2 (en) | 1984-03-29 | 1985-03-18 | Trahsdermal bopindolol compositions |
| US06/713,637 US4819113A (en) | 1984-03-29 | 1985-03-19 | Magnetic transducer head with inclined magnetic gap |
| CA000476838A CA1234626A (en) | 1984-06-18 | 1985-03-19 | Magnetic transducer head |
| GB08507362A GB2158282B (en) | 1984-03-29 | 1985-03-21 | Magnetic transducer heads |
| NL8500887A NL192638C (nl) | 1984-03-29 | 1985-03-26 | Magnetische transductorkop. |
| IT8547878A IT1214654B (it) | 1984-03-29 | 1985-03-27 | Testa magnetica trasduttrice |
| AT0091685A AT394117B (de) | 1984-03-29 | 1985-03-27 | Magnetwandlerkopf |
| DE3511361A DE3511361C2 (de) | 1984-03-29 | 1985-03-28 | Magnetischer Wandlerkopf |
| FR8504684A FR2562304B1 (fr) | 1984-03-29 | 1985-03-28 | Tete de transducteur magnetique |
| KR1019850002622A KR930002393B1 (ko) | 1984-06-18 | 1985-04-18 | 자기헤드 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59124805A JPS613311A (ja) | 1984-06-18 | 1984-06-18 | 磁気ヘツド |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS613311A JPS613311A (ja) | 1986-01-09 |
| JPH0475566B2 true JPH0475566B2 (US07534539-20090519-C00280.png) | 1992-12-01 |
Family
ID=14894556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59124805A Granted JPS613311A (ja) | 1984-03-29 | 1984-06-18 | 磁気ヘツド |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS613311A (US07534539-20090519-C00280.png) |
| KR (1) | KR930002393B1 (US07534539-20090519-C00280.png) |
| CA (1) | CA1234626A (US07534539-20090519-C00280.png) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62117706U (US07534539-20090519-C00280.png) * | 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 (US07534539-20090519-C00280.png) * | 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 |
Citations (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 IP Right Cessation
Patent Citations (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR930002393B1 (ko) | 1993-03-30 |
| KR860000629A (ko) | 1986-01-29 |
| CA1234626A (en) | 1988-03-29 |
| JPS613311A (ja) | 1986-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |