JPS57147118A - Thin film type magnetic head - Google Patents

Thin film type magnetic head

Info

Publication number
JPS57147118A
JPS57147118A JP3344781A JP3344781A JPS57147118A JP S57147118 A JPS57147118 A JP S57147118A JP 3344781 A JP3344781 A JP 3344781A JP 3344781 A JP3344781 A JP 3344781A JP S57147118 A JPS57147118 A JP S57147118A
Authority
JP
Japan
Prior art keywords
polishment
magnetic
magnetic pole
polished
materials
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.)
Granted
Application number
JP3344781A
Other languages
Japanese (ja)
Other versions
JPS6037968B2 (en
Inventor
Keiichi Yanagisawa
Yasuhiro Koshimoto
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP3344781A priority Critical patent/JPS6037968B2/en
Publication of JPS57147118A publication Critical patent/JPS57147118A/en
Publication of JPS6037968B2 publication Critical patent/JPS6037968B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • G11B5/3106—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks

Abstract

PURPOSE:To reduce the effect of tip of magnetic pole at reproducing characteristics and to increase the efficiency, by eliminating the effect of magnetic film thickness on reproducing characteristics, through the use of a polishment step characteristic by different gualities of materials in polishing a surface opposing to a medium. CONSTITUTION:When different types of materials are polished at the same time, a step difference is caused between the materials. By using this phenomenon, when a head surface is polished by locating Al and Cr as a nonmagnetic substance layer 7, a polishment slope is caused with the polished step difference of the nonmagnetic substance layer at the end of magnetic pole and sudden change in a magnetic potential can be avoided. Further, a protective film 5 of a hard-polishment member is arranged at the outside of the layer 7 and the type of material of polishment resistant member is selected as a gap member 4, then the finished surface after flat polishment is shown in A. Since the distance with a medium surface at the end of magnetic pole is greater, then the change in the reproducing characteristics due to sudden change in the magnetic potential at the end of magnetic pole is less, allowing the increase the efficiency with thick magnetic film and it is not necessary to make highly accurate control for the magnetic film thickness.
JP3344781A 1981-03-09 1981-03-09 Thin film magnetic head Expired JPS6037968B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3344781A JPS6037968B2 (en) 1981-03-09 1981-03-09 Thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3344781A JPS6037968B2 (en) 1981-03-09 1981-03-09 Thin film magnetic head

Publications (2)

Publication Number Publication Date
JPS57147118A true JPS57147118A (en) 1982-09-10
JPS6037968B2 JPS6037968B2 (en) 1985-08-29

Family

ID=12386783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3344781A Expired JPS6037968B2 (en) 1981-03-09 1981-03-09 Thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS6037968B2 (en)

Also Published As

Publication number Publication date
JPS6037968B2 (en) 1985-08-29

Similar Documents

Publication Publication Date Title
JPS5677927A (en) Magnetic recording medium
JPS545705A (en) Double layer magnetic recording medium
JPS5718025A (en) Magnetic recording medium
JPS5377603A (en) Magnetic recording medium
JPS56143522A (en) Magnetic recording medium
JPS57147118A (en) Thin film type magnetic head
JPS57176537A (en) Magnetic recording medium
JPS57179925A (en) Magnetic head
JPS56143523A (en) Magnetic recording medium
JPS5683869A (en) Structure of thin film magnetic head
JPS5517853A (en) Magnetresistance effect head
JPS5724026A (en) Magnetic recording medium
JPS55113122A (en) Magnetic head unit
JPS5755531A (en) Vertical magnetic recording medium
JPS57147130A (en) Magnetic recording medium
JPS57141008A (en) Thin film double azimuth magnetic head
JPS5798121A (en) Magnetic head
JPS57191819A (en) Magnetic head
JPS57111827A (en) Thin film magnetic head
JPS51148407A (en) Magnetic recording medium
JPS6435714A (en) Magnetic head
JPS56114121A (en) Magnetic head
JPS5358219A (en) Thin film magnetic head assembly
JPS5737718A (en) Magnetic recording medium
JPS578915A (en) Magnetic head for vertical magnetic recording