JPS5522275A - Manufacture of thin-film magnetic head - Google Patents

Manufacture of thin-film magnetic head

Info

Publication number
JPS5522275A
JPS5522275A JP9510478A JP9510478A JPS5522275A JP S5522275 A JPS5522275 A JP S5522275A JP 9510478 A JP9510478 A JP 9510478A JP 9510478 A JP9510478 A JP 9510478A JP S5522275 A JPS5522275 A JP S5522275A
Authority
JP
Japan
Prior art keywords
magnetic substance
insulator film
substance layer
coat
chelate compound
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
JP9510478A
Other languages
Japanese (ja)
Inventor
Yoshimasa Miura
Yoshio Takahashi
Shoichi Tsutsumi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9510478A priority Critical patent/JPS5522275A/en
Publication of JPS5522275A publication Critical patent/JPS5522275A/en
Pending legal-status Critical Current

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  • Magnetic Heads (AREA)

Abstract

PURPOSE: To secure formation of the insulator film composed of Al2O3 which features a high insulation and is free from pinholes onto the lower magnetic substance layer impossible for the anode formation by applying the solution containing the Al chelate compound and then giving the heat oxidation to the coat.
CONSTITUTION: The solution composed by dissolving the Al chelate compound into the organic solvent is applied on the surface of lower magnetic substance layer 10 composed of the permalloy provided on substrate 100. This coat is then heated up to 200W400°C to be formed into insulator film 200 of the Al2O3 group. Then SiO insulator film 20 is formed on film 200 by the sputtering and other methods, and then coil conductors 30aW33a and upper magnetic substance layer 11 are laminated via the insulated layer to form the pole face surface. As a result, the adjustment of the gap length via etching can be omitted, thus increasing the production yield.
COPYRIGHT: (C)1980,JPO&Japio
JP9510478A 1978-08-04 1978-08-04 Manufacture of thin-film magnetic head Pending JPS5522275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9510478A JPS5522275A (en) 1978-08-04 1978-08-04 Manufacture of thin-film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9510478A JPS5522275A (en) 1978-08-04 1978-08-04 Manufacture of thin-film magnetic head

Publications (1)

Publication Number Publication Date
JPS5522275A true JPS5522275A (en) 1980-02-16

Family

ID=14128556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9510478A Pending JPS5522275A (en) 1978-08-04 1978-08-04 Manufacture of thin-film magnetic head

Country Status (1)

Country Link
JP (1) JPS5522275A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63121670A (en) * 1986-11-10 1988-05-25 Toshiba Corp Thin 'permalloy(r)' strip
JPH07176014A (en) * 1991-05-02 1995-07-14 Internatl Business Mach Corp <Ibm> Magnetic head with improved pole tip and its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63121670A (en) * 1986-11-10 1988-05-25 Toshiba Corp Thin 'permalloy(r)' strip
JPH07176014A (en) * 1991-05-02 1995-07-14 Internatl Business Mach Corp <Ibm> Magnetic head with improved pole tip and its manufacture

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