KR930010862A - 좁은 요크(yoke)를 갖는 박막자기헤드 - Google Patents

좁은 요크(yoke)를 갖는 박막자기헤드 Download PDF

Info

Publication number
KR930010862A
KR930010862A KR1019920017332A KR920017332A KR930010862A KR 930010862 A KR930010862 A KR 930010862A KR 1019920017332 A KR1019920017332 A KR 1019920017332A KR 920017332 A KR920017332 A KR 920017332A KR 930010862 A KR930010862 A KR 930010862A
Authority
KR
South Korea
Prior art keywords
thin film
magnetic head
film magnetic
yoke structure
yoke
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.)
Ceased
Application number
KR1019920017332A
Other languages
English (en)
Inventor
엠. 윌리엄스 에드가
쥐. 비숍 피터
아코 신이치
Original Assignee
씨릴 제이. 얀순이
리드-라이트 코포레이션
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 씨릴 제이. 얀순이, 리드-라이트 코포레이션 filed Critical 씨릴 제이. 얀순이
Publication of KR930010862A publication Critical patent/KR930010862A/ko
Ceased 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

박막자기헤드는 P1과 P2의 자성층들을 포함하고 약 5 내지 58㎛의 폭을 가지는 요크구조로 제작된다. 극히 좁은 폭은 팝콘잡음을 최소화시키고, 고주파응답을 개선시키며, 헤드 회로 능률을 높인다.

Description

좁은 요크(YOKE)를 갖는 박막자기헤드
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 전형적인 박막자기헤드의 개략적인 확대단면도이고,
제2도는 본 발명에 의해 만들어진 박막자기헤드의 (매우좁은 요크 부분을 가지는 새로운 도안을 설명하기 위해)부분적으로 절개한 평면도이다.

Claims (7)

  1. 비자성기판(10)과; 상기의 기판(10)위에 배치되어 있고, 연속적인 자기통로와 후면봉쇄(20)를 형성하는 1, 2차 자성층(P1)(P2)의 접촉을 포함하는 상기의 요크구조; 그 사이에 변환궁극(G)을 형성하는 상기의 자성층들(P1)(P2)과; 상기의 자성층들 사이에 위치하여 상기의 요크구조로부터 전기적으로 절연된 전기코일로 구성되는 박막자기헤드에 있어서, 상기의 요크구조가 약 5 내지 58μm의 범위의 폭을 가지는 것을 특징으로 하는 상기의 박막자기헤드.
  2. 제1항에 있어서. 상기의 요크구조의 폭이 약 30㎛인 박막자기헤드.
  3. 제1항에 있어서, 후면봉쇄(20)로부터 변환궁극(G)까지 측정된 상기의 요크 구조의 높이가 상기의 요크폭 보다도 최소한 2배인 박막자기헤드.
  4. 제3항에 있어서, 상기의 요크구조의 높이가 약 110μm인 박막자기헤드.
  5. 제1항에 있어서, 상기의 요크구조의 폭에 대한 높이 즉 종횡비가 약 2:1에서 22:1의 범위인 박막자기헤드.
  6. 제5항에 있어서, 상기의 종횡비가 약 4.3:1인 박막자기헤드.
  7. 제1항에 있어서, 상기의 자성층들(P1)(P3)이 퍼말로이(Permal1oy)로 말들어진 박막 자기헤드.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920017332A 1991-11-12 1992-09-23 좁은 요크(yoke)를 갖는 박막자기헤드 Ceased KR930010862A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78993491A 1991-11-12 1991-11-12
US07/789934 1991-11-21

Publications (1)

Publication Number Publication Date
KR930010862A true KR930010862A (ko) 1993-06-23

Family

ID=25149156

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920017332A Ceased KR930010862A (ko) 1991-11-12 1992-09-23 좁은 요크(yoke)를 갖는 박막자기헤드

Country Status (5)

Country Link
US (1) US5255142A (ko)
EP (1) EP0541943A2 (ko)
JP (1) JPH05217116A (ko)
KR (1) KR930010862A (ko)
CN (1) CN1074307A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100441170B1 (ko) * 1997-05-22 2004-10-12 삼성전자주식회사 측면트랙노이즈제거를위한헤드갭(gap)구조

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687045A (en) * 1991-09-20 1997-11-11 Hitachi, Ltd. Thin film magnetic head and production method thereof and magnetic disk drive equipped with this thin film magnetic head
EP0585930A3 (en) * 1992-09-04 1995-11-22 Read Rite Corp Thin film magnetic head
US5559653A (en) * 1993-12-10 1996-09-24 Yamaha Corporation Thin film magnetic head having a multilayer upper core
US5600519A (en) * 1995-03-06 1997-02-04 International Business Machines Corporation Controlled saturation thin film magnetic write head
US5798897A (en) * 1996-10-21 1998-08-25 International Business Machines Corporation Inductive write head with insulation stack configured for eliminating reflective notching
US5805391A (en) * 1996-10-28 1998-09-08 International Business Machines Corporation Write head with recessed stitched yoke on a planar portion of an insulation layer defining zero throat height
JP3522614B2 (ja) * 1999-12-13 2004-04-26 Ｔｄｋ株式会社 薄膜磁気ヘッドの特性改善方法および装置
JP2002319109A (ja) 2001-04-20 2002-10-31 Shinka Jitsugyo Kk 薄膜磁気ヘッドおよびその製造方法
JP2004342210A (ja) * 2003-05-15 2004-12-02 Tdk Corp 垂直磁気記録用磁気ヘッドおよびその製造方法、ヘッドジンバルアセンブリならびにハードディスク装置
US8064160B2 (en) 2007-07-30 2011-11-22 Tdk Corporation Magnetic head for perpendicular magnetic recording with coil wound around pole layer
US7564236B1 (en) * 2008-07-01 2009-07-21 Hitachi Global Storage Technologies Netherlands B.V. Thermal fly height induced shield instability screening for magnetoresistive heads

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60256903A (ja) * 1984-05-31 1985-12-18 Matsushita Electric Ind Co Ltd 磁気ヘツド
DE3420746A1 (de) * 1984-06-04 1985-12-05 Siemens AG, 1000 Berlin und 8000 München Schichtweise aufgebauter magnetkopf fuer ein senkrecht zu magnetisierendes aufzeichnungsmedium
EP0314172B1 (en) * 1987-10-29 1994-03-09 Fuji Photo Film Co., Ltd. Film magnetic head
EP0320687A1 (de) * 1987-12-11 1989-06-21 Siemens Aktiengesellschaft Dünnfilm-Magnetkopf zur vertikalen Magnetisierung
JP2585400B2 (ja) * 1988-03-23 1997-02-26 株式会社日立製作所 磁気デイスク装置
JP2728455B2 (ja) * 1988-09-20 1998-03-18 株式会社日立製作所 薄膜磁気ヘッドとそれを用いた磁気ディスク装置及び情報の記録再生方法
JPH0778858B2 (ja) * 1988-10-04 1995-08-23 富士写真フイルム株式会社 薄膜磁気ヘッド
JPH03178013A (ja) * 1989-12-06 1991-08-02 Sony Corp 狭トラック磁気ヘッド

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100441170B1 (ko) * 1997-05-22 2004-10-12 삼성전자주식회사 측면트랙노이즈제거를위한헤드갭(gap)구조

Also Published As

Publication number Publication date
CN1074307A (zh) 1993-07-14
US5255142A (en) 1993-10-19
JPH05217116A (ja) 1993-08-27
EP0541943A2 (en) 1993-05-19
EP0541943A3 (ko) 1994-08-03

Similar Documents

Publication Publication Date Title
KR970012323A (ko) 자기저항효과 소자 및 메모리 소자
KR930018474A (ko) 자기 디스크 기록시스템, 박막자기헤드 및 그의 제조방법
KR890002914A (ko) 박막 변압기 및 자기 헤드
JPS52119213A (en) Magnetic head and its production
KR940704041A (ko) 집적 바이어스층 및 자기 차폐층을 구비한 자기 저항 헤드(magnetorestive head with integrated bias and magnetic shield layer)
KR940002769A (ko) 박막자기헤드
KR890002820A (ko) 유도변환 소자를 구비하는 박막 자기헤드
JPS61199684A (ja) 磁気抵抗効果型素子
JPS5786124A (en) Magnetic resistance effect type magnetic head and its manufacture
KR970002883A (ko) 자기헤드 및 그 제조 방법
JPS60185220A (ja) 磁気抵抗効果形薄膜ヘツド
KR950004101A (ko) 적층자기헤드
KR910015965A (ko) 자계 발생 장치
JPS6112593Y2 (ko)
KR970050223A (ko) 고주파수용 박막 자기 헤드 및 이의 제조 방법
KR930010867A (ko) 자기헤드의 제조방법
JPS5766523A (en) Thin-film magnetic head
JPH02166707A (ja) 薄膜インダクタ
US4236226A (en) Magnetic domain device
KR970050220A (ko) 자기헤드
KR890012270A (ko) 박막 자기 헤드
JPH0214416A (ja) 薄膜磁気ヘッド
JPS592222A (ja) 磁気抵抗効果型磁気ヘツド
KR960030093A (ko) 자기헤드
JPS6326809A (ja) 薄膜磁気ヘツド

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19920923

A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19930114

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19920923

Comment text: Patent Application

PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19960427

Patent event code: PE09021S01D

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19961028

Patent event code: PE09021S01D

E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 19970331

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 19961028

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I

Patent event date: 19960427

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I