KR930000067B1 - 자기헤드 - Google Patents
자기헤드 Download PDFInfo
- Publication number
- KR930000067B1 KR930000067B1 KR1019850000415A KR850000415A KR930000067B1 KR 930000067 B1 KR930000067 B1 KR 930000067B1 KR 1019850000415 A KR1019850000415 A KR 1019850000415A KR 850000415 A KR850000415 A KR 850000415A KR 930000067 B1 KR930000067 B1 KR 930000067B1
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic
- metal thin
- thin film
- ferromagnetic metal
- magnetic head
- 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 title claims description 149
- 230000005294 ferromagnetic effect Effects 0.000 claims description 89
- 239000010409 thin film Substances 0.000 claims description 89
- 239000002184 metal Substances 0.000 claims description 83
- 239000000463 material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 19
- 239000000758 substrate Substances 0.000 description 32
- 239000011521 glass Substances 0.000 description 28
- 230000008018 melting Effects 0.000 description 19
- 238000002844 melting Methods 0.000 description 19
- 239000010408 film Substances 0.000 description 16
- 230000001105 regulatory effect Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 238000004804 winding Methods 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- 230000035699 permeability Effects 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000004581 coalescence Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000075 oxide glass Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- G11B5/3109—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
-
- 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
- G11B5/3163—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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP78242 | 1984-04-18 | ||
JP59078242A JPS60223012A (ja) | 1984-04-18 | 1984-04-18 | 磁気ヘツド |
Publications (2)
Publication Number | Publication Date |
---|---|
KR850007508A KR850007508A (ko) | 1985-12-04 |
KR930000067B1 true KR930000067B1 (ko) | 1993-01-08 |
Family
ID=13656549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019850000415A Expired - Lifetime KR930000067B1 (ko) | 1984-04-18 | 1985-01-23 | 자기헤드 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS60223012A (enrdf_load_stackoverflow) |
KR (1) | KR930000067B1 (enrdf_load_stackoverflow) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0690776B2 (ja) * | 1985-08-12 | 1994-11-14 | 株式会社日立製作所 | 磁気ヘツド |
JPH0770023B2 (ja) * | 1985-11-26 | 1995-07-31 | ソニー株式会社 | 磁気ヘツド |
JPS62145516A (ja) * | 1985-12-19 | 1987-06-29 | Sony Corp | 磁気ヘツド |
JPS62145522A (ja) * | 1985-12-20 | 1987-06-29 | Hitachi Ltd | 薄膜磁気ヘツド |
JPS62298908A (ja) * | 1986-06-18 | 1987-12-26 | Sankyo Seiki Mfg Co Ltd | 磁気ヘツド |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5623A (en) * | 1979-06-15 | 1981-01-06 | Hitachi Ltd | Magnetic head and its manufacture |
JPS56169214A (en) * | 1980-06-02 | 1981-12-25 | Nippon Hoso Kyokai <Nhk> | Magnetic head |
JPS58143428A (ja) * | 1982-02-19 | 1983-08-26 | Sanyo Electric Co Ltd | 磁気ヘツド |
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 |
-
1984
- 1984-04-18 JP JP59078242A patent/JPS60223012A/ja active Granted
-
1985
- 1985-01-23 KR KR1019850000415A patent/KR930000067B1/ko not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR850007508A (ko) | 1985-12-04 |
JPH0475564B2 (enrdf_load_stackoverflow) | 1992-12-01 |
JPS60223012A (ja) | 1985-11-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19850123 |
|
PG1501 | Laying open of application | ||
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19900119 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19850123 Comment text: Patent Application |
|
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19921201 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19930329 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19930408 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 19930408 End annual number: 3 Start annual number: 1 |
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PR1001 | Payment of annual fee |
Payment date: 19951229 Start annual number: 4 End annual number: 4 |
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PR1001 | Payment of annual fee |
Payment date: 19970108 Start annual number: 5 End annual number: 5 |
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PR1001 | Payment of annual fee |
Payment date: 19971227 Start annual number: 6 End annual number: 6 |
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PR1001 | Payment of annual fee |
Payment date: 19990106 Start annual number: 7 End annual number: 7 |
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PR1001 | Payment of annual fee |
Payment date: 19991229 Start annual number: 8 End annual number: 8 |
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PR1001 | Payment of annual fee |
Payment date: 20001216 Start annual number: 9 End annual number: 9 |
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PR1001 | Payment of annual fee |
Payment date: 20011218 Start annual number: 10 End annual number: 10 |
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PR1001 | Payment of annual fee |
Payment date: 20021217 Start annual number: 11 End annual number: 11 |
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FPAY | Annual fee payment |
Payment date: 20031219 Year of fee payment: 12 |
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PR1001 | Payment of annual fee |
Payment date: 20031219 Start annual number: 12 End annual number: 12 |
|
EXPY | Expiration of term | ||
PC1801 | Expiration of term |