JPS6476414A - Thin film magnetic head - Google Patents
Thin film magnetic headInfo
- Publication number
- JPS6476414A JPS6476414A JP23111487A JP23111487A JPS6476414A JP S6476414 A JPS6476414 A JP S6476414A JP 23111487 A JP23111487 A JP 23111487A JP 23111487 A JP23111487 A JP 23111487A JP S6476414 A JPS6476414 A JP S6476414A
- Authority
- JP
- Japan
- Prior art keywords
- markers
- depth
- insulating layer
- gap
- magnetic body
- 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
Landscapes
- Magnetic Heads (AREA)
Abstract
PURPOSE:To improve the work efficiency in the mass production by using three kinds of depth detecting marker to grind a gap in the depth direction to control the accuracy of the gap depth. CONSTITUTION:An insulating layer 3, a coil conductor 4 consisting of metallic materials, and first depth detecting markers 5a and 5b are formed on a lower magnetic body 2 of a substrate 1. After an insulating layer 6 is formed layers 3 and 6 in prescribed parts are removed to form an etching area, and front ends of markers 5a an 5b are exposed. An insulating layer 8 is formed, and second depth detecting markers 10a and 10b having similar shapes are formed on markers 5a and 5b by the layer 8. After an insulating layer 11 is formed on the gap part etching area, an upper magnetic body 12 and third depth detecting markers 13a and 13b which cover markers 10a and 10b of the magnetic body 12 are formed. Thereafter, the medium slide face of this element is ground in the head direction to attain a prescribed gap depth value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23111487A JPS6476414A (en) | 1987-09-17 | 1987-09-17 | Thin film magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23111487A JPS6476414A (en) | 1987-09-17 | 1987-09-17 | Thin film magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476414A true JPS6476414A (en) | 1989-03-22 |
Family
ID=16918512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23111487A Pending JPS6476414A (en) | 1987-09-17 | 1987-09-17 | Thin film magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476414A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331495A (en) * | 1990-06-11 | 1994-07-19 | Fuji Photo Film Co., Ltd. | Thin film magnetic head and methods for producing same |
WO2000017861A1 (en) * | 1998-09-18 | 2000-03-30 | Fujitsu Limited | Thin film induction write magnetic head and method of manufacturing the same |
US6742242B2 (en) | 1998-04-17 | 2004-06-01 | Tdk Corporation | Thin film magnetic head and method of manufacturing the same |
-
1987
- 1987-09-17 JP JP23111487A patent/JPS6476414A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331495A (en) * | 1990-06-11 | 1994-07-19 | Fuji Photo Film Co., Ltd. | Thin film magnetic head and methods for producing same |
US6742242B2 (en) | 1998-04-17 | 2004-06-01 | Tdk Corporation | Thin film magnetic head and method of manufacturing the same |
WO2000017861A1 (en) * | 1998-09-18 | 2000-03-30 | Fujitsu Limited | Thin film induction write magnetic head and method of manufacturing the same |
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