JPS6476414A - Thin film magnetic head - Google Patents

Thin film magnetic head

Info

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
Application number
JP23111487A
Other languages
Japanese (ja)
Inventor
Yoshiaki Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP23111487A priority Critical patent/JPS6476414A/en
Publication of JPS6476414A publication Critical patent/JPS6476414A/en
Pending legal-status Critical Current

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.
JP23111487A 1987-09-17 1987-09-17 Thin film magnetic head Pending JPS6476414A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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