JPS63247903A - Formation of operating gap for magnetic head - Google Patents

Formation of operating gap for magnetic head

Info

Publication number
JPS63247903A
JPS63247903A JP8256687A JP8256687A JPS63247903A JP S63247903 A JPS63247903 A JP S63247903A JP 8256687 A JP8256687 A JP 8256687A JP 8256687 A JP8256687 A JP 8256687A JP S63247903 A JPS63247903 A JP S63247903A
Authority
JP
Japan
Prior art keywords
layer
gap
gap forming
provided
butting
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
JP8256687A
Inventor
Nobuhito Fukushima
Hidetake Hashimoto
Atsushi Satou
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP8256687A priority Critical patent/JPS63247903A/en
Publication of JPS63247903A publication Critical patent/JPS63247903A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To stably form an operating gap with narrow width suitable for high recording density, by providing an oxide layer and a joint glass layer by laminating them specified on the gap forming plane of a ferrite core, and heating and pressurizing the gap forming planes after butting them.
CONSTITUTION: On the ground gap forming planes of the ferrite cores 101 and 102, aluminum oxide layers 103 and 104 whose respective layer thickness is set at 0.02W0.08μm are provided, and on each of them, silicon oxide layers 105 and 106, and the joint glass layer 107 are provided by laminating them. Next, the gap forming planes on which multiple layer films are provided are heated and pressurized after butting them. Thus, the aluminum oxide layer can prevent the expansion of the gap width by preventing the diffusion of a glass component, and also, relax stress between each layer based on the difference of coefficients of thermal expansion. Therefore, it is possible to form the operating gap with narrow width suitable for the high recording density stably.
COPYRIGHT: (C)1988,JPO&Japio
JP8256687A 1987-04-03 1987-04-03 Formation of operating gap for magnetic head Pending JPS63247903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8256687A JPS63247903A (en) 1987-04-03 1987-04-03 Formation of operating gap for magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8256687A JPS63247903A (en) 1987-04-03 1987-04-03 Formation of operating gap for magnetic head

Publications (1)

Publication Number Publication Date
JPS63247903A true JPS63247903A (en) 1988-10-14

Family

ID=13778039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8256687A Pending JPS63247903A (en) 1987-04-03 1987-04-03 Formation of operating gap for magnetic head

Country Status (1)

Country Link
JP (1) JPS63247903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452164A (en) * 1994-02-08 1995-09-19 International Business Machines Corporation Thin film magnetic write head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452164A (en) * 1994-02-08 1995-09-19 International Business Machines Corporation Thin film magnetic write head
US5649351A (en) * 1994-02-08 1997-07-22 International Business Machines Corporation Method of making thin film magnetic write head

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