JPS5611615A - Thin film magnetic head - Google Patents

Thin film magnetic head

Info

Publication number
JPS5611615A
JPS5611615A JP8520279A JP8520279A JPS5611615A JP S5611615 A JPS5611615 A JP S5611615A JP 8520279 A JP8520279 A JP 8520279A JP 8520279 A JP8520279 A JP 8520279A JP S5611615 A JPS5611615 A JP S5611615A
Authority
JP
Japan
Prior art keywords
conductor layer
substance
width
layer
gap
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
JP8520279A
Other languages
Japanese (ja)
Inventor
Kenji Kanai
Nobumasa Kaminaka
Kidai Nochi
Noboru Nomura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8520279A priority Critical patent/JPS5611615A/en
Priority to US06/165,941 priority patent/US4353102A/en
Publication of JPS5611615A publication Critical patent/JPS5611615A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the efficiency for recording and the recording density, by providing the groove on the magnetic substance substrate, forming the winding with the conductor layer longitudinally crossed on the nonmagnetic substance and forming the magnetic substance layer having the front gap of specific shape, by crossing on the conductor layer.
CONSTITUTION: The groove filled in the nonmagnetic substance 6, (l) in width and (h) in depth is provided for the magnetic substance substrate 1. Next, the nonmagnetic substance insulating layers 2, 4 are formed on the substrate 1. Further, the winding is formed with the conductor layer 3 crossing over the nonmagnetic substance 6. Next, the mganetic substance layer 5 of uniform thickness is provided by crossing the conductor layer 3 transversally, so that the width (w) of the gap A is constant and the width W of the conductor layer crossing part B is less than W and it is gradually decreased in the vicinity of the A. The value of the ratio w/W is taken as about 0.25. The width of air gap is (g), depth of air gap is (d), and thickness of magnetic sunbstance layer is formed as (p). Thus, the magnetic field at the tip of gap is made stronger to increase the recording efficiency and the recording density. The conductor layer 3 can be constituted with a plurality of windings in spiral to obtain increased output of reproduction.
COPYRIGHT: (C)1981,JPO&Japio
JP8520279A 1979-07-04 1979-07-04 Thin film magnetic head Pending JPS5611615A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8520279A JPS5611615A (en) 1979-07-04 1979-07-04 Thin film magnetic head
US06/165,941 US4353102A (en) 1979-07-04 1980-07-03 Thin-film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8520279A JPS5611615A (en) 1979-07-04 1979-07-04 Thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS5611615A true JPS5611615A (en) 1981-02-05

Family

ID=13852023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8520279A Pending JPS5611615A (en) 1979-07-04 1979-07-04 Thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS5611615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6804088B1 (en) 1998-07-15 2004-10-12 Nec Corporation Thin film magnetic head, manufacturing method thereof and magnetic storage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6804088B1 (en) 1998-07-15 2004-10-12 Nec Corporation Thin film magnetic head, manufacturing method thereof and magnetic storage

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