JPS57183618A - Thin film magnetic head - Google Patents
Thin film magnetic headInfo
- Publication number
- JPS57183618A JPS57183618A JP6985381A JP6985381A JPS57183618A JP S57183618 A JPS57183618 A JP S57183618A JP 6985381 A JP6985381 A JP 6985381A JP 6985381 A JP6985381 A JP 6985381A JP S57183618 A JPS57183618 A JP S57183618A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- thin film
- magnetic head
- film magnetic
- lower magnetic
- 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.)
- Pending
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
PURPOSE:To reduce the waveform distortion of a reproduced output for a thin film magnetic head consisting of a conductor layer formed between the upper and lower magnetic layers, by forming the patterns of the upper and lower magnetic layers into asymmetrical formes to each other. CONSTITUTION:A lower magnetic layer 10 of ''Permalloy '', etc. is formed on a substrate 4 of glass, etc. in several mum thickness. A coil layer 12 of aluminum, etc. is provided thickness. A coil layer 12 of aluminum, etc. is provided with intervention of an insulated layer 11 of SiO2, etc. Then an upper magnetic layer 13 of ''Permalloy '', etc. is stacked on the layer 12. Thus a thin film magnetic head is obtained. The size of the layer 10 is set asymmetrical to the size (1) of the layer 13. In such way, the waveform distortion is reduced for the reproduced output.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6985381A JPS57183618A (en) | 1981-05-08 | 1981-05-08 | Thin film magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6985381A JPS57183618A (en) | 1981-05-08 | 1981-05-08 | Thin film magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57183618A true JPS57183618A (en) | 1982-11-12 |
Family
ID=13414780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6985381A Pending JPS57183618A (en) | 1981-05-08 | 1981-05-08 | Thin film magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57183618A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4740855A (en) * | 1985-10-18 | 1988-04-26 | Siemens Aktiengesellschaft | Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization |
WO1990002399A1 (en) * | 1988-08-19 | 1990-03-08 | Siemens Aktiengesellschaft | Thin-film magnetic head |
US9496071B2 (en) | 2011-05-19 | 2016-11-15 | Yazaki Corporation | Shield wire |
-
1981
- 1981-05-08 JP JP6985381A patent/JPS57183618A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4740855A (en) * | 1985-10-18 | 1988-04-26 | Siemens Aktiengesellschaft | Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization |
WO1990002399A1 (en) * | 1988-08-19 | 1990-03-08 | Siemens Aktiengesellschaft | Thin-film magnetic head |
US9496071B2 (en) | 2011-05-19 | 2016-11-15 | Yazaki Corporation | Shield wire |
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