DE69318042D1 - Dünnfilmmagnetköpfe mit dünnen nickelunterlagen - Google Patents

Dünnfilmmagnetköpfe mit dünnen nickelunterlagen

Info

Publication number: DE69318042D1
Authority: DE; Germany
Prior art keywords: thin; film magnet; thin film; magnet heads; nickel pads
Prior art date: 1993-11-23
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.): Expired - Fee Related

Application number

DE69318042T

Other languages

English (en)

Other versions

DE69318042T2 (de

Inventor

Frank Stageberg

Mark Miller

Kenneth Ash

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.)

Seagate Technology LLC

Original Assignee

Seagate Technology LLC

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.)

1993-11-23

Filing date

1993-11-23

Publication date

1998-05-20

1993-11-23 Application filed by Seagate Technology LLC filed Critical Seagate Technology LLC

1993-11-23 Priority claimed from PCT/US1993/011571 external-priority patent/WO1995014991A1/en

1998-05-20 Application granted granted Critical

1998-05-20 Publication of DE69318042D1 publication Critical patent/DE69318042D1/de

1998-08-06 Publication of DE69318042T2 publication Critical patent/DE69318042T2/de

2013-11-24 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- 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
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers

Landscapes

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

DE69318042T 1993-11-23 1993-11-23 Dünnfilmmagnetköpfe mit dünnen nickelunterlagen Expired - Fee Related DE69318042T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US1993/011571 WO1995014991A1 (en)	1993-11-23	1993-11-23	Thin film magnetic heads with thin nickel underlayers

Publications (2)

Publication Number	Publication Date
DE69318042D1 true DE69318042D1 (de)	1998-05-20
DE69318042T2 DE69318042T2 (de)	1998-08-06

Family

ID=22237237

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69318042T Expired - Fee Related DE69318042T2 (de)	1993-11-23	1993-11-23	Dünnfilmmagnetköpfe mit dünnen nickelunterlagen

Country Status (4)

Country	Link
US (1)	US6125010A (de)
JP (1)	JP3539732B2 (de)
DE (1)	DE69318042T2 (de)
HK (1)	HK1010069A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3474455B2 (ja) *	1998-09-10	2003-12-08	Ｔｄｋ株式会社	薄膜磁気ヘッドおよびその製造方法
JP3455155B2 (ja) *	1999-06-28	2003-10-14	アルプス電気株式会社	薄膜磁気ヘッド及びその製造方法
US6425989B1 (en) *	1999-12-16	2002-07-30	International Business Machines Corporation	Method of sputtering high moment iron nitride based magnetic head layers
SG115532A1 (en) *	2002-04-03	2005-10-28	Seagate Technology Llc	Perpendicular writer pole having a nonmagnetic seedlayer
GB0207724D0 (en)	2002-04-03	2002-05-15	Seagate Technology Llc	Patent submission-Ruthenium as non-magnetic sedlayer for electrodeposition
US7298587B2 (en) *	2002-08-05	2007-11-20	Seagate Technology Llc	Rounded top pole
US7684150B2 (en) *	2003-07-09	2010-03-23	Seagate Technology Llc	Recording head for reducing side track erasure

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4103315A (en) *	1977-06-24	1978-07-25	International Business Machines Corporation	Antiferromagnetic-ferromagnetic exchange bias films
DE2833249C2 (de) *	1978-07-28	1985-05-09	Siemens AG, 1000 Berlin und 8000 München	Verfahren zur Herstellung eines lamellierten Dünnschicht-Magnetkopfes mit mehreren Schichten aus abwechelnd magnetischem und unmagnetischem Material
JPH061729B2 (ja) *	1983-01-17	1994-01-05	株式会社日立製作所	磁性体膜およびそれを用いた磁気ヘッド
JPS59231722A (ja) *	1983-06-13	1984-12-26	Matsushita Electric Ind Co Ltd	薄膜磁気ヘッドの製造方法
HU190640B (en) *	1983-12-13	1986-09-29	Karman,Peter,Hu	Integrated magnetic head, preferably for computer technology purposes
JPS6176642A (ja) *	1984-09-25	1986-04-19	Hitachi Ltd	Ｃｏ―Ｎｉ―Ｆｅ合金の電気めっき浴及び電気めっき方法
US4907113A (en) *	1987-07-29	1990-03-06	Digital Equipment Corporation	Three-pole magnetic recording head
JPH07114007B2 (ja) *	1987-12-04	1995-12-06	ディジタルイクイプメントコーポレーション	記録ヘッドの積層構造磁極
US4912584A (en) *	1988-03-09	1990-03-27	Digital Equipment Corporation	Method for fabricating magnetic recording poles
FR2644292A1 (fr) *	1989-03-08	1990-09-14	Commissariat Energie Atomique	Procede de depot electrolytique sur un substrat semi-conducteur
US5059278A (en) *	1990-09-28	1991-10-22	Seagate Technology	Selective chemical removal of coil seed-layer in thin film head magnetic transducer
US5240740A (en) *	1990-11-26	1993-08-31	Digital Equipment Corporation	Method of making a thin film head with minimized secondary pulses
US5375023A (en) *	1992-12-29	1994-12-20	International Business Machines Corporation	Submicron thin film inductive head with self-aligned staggered pole-tips

1993
- 1993-11-23 DE DE69318042T patent/DE69318042T2/de not_active Expired - Fee Related
- 1993-11-23 JP JP51502795A patent/JP3539732B2/ja not_active Expired - Lifetime
1994
- 1994-01-27 US US08/188,078 patent/US6125010A/en not_active Expired - Lifetime
1998
- 1998-09-10 HK HK98110570A patent/HK1010069A1/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
JP3539732B2 (ja)	2004-07-07
JPH09505682A (ja)	1997-06-03
US6125010A (en)	2000-09-26
DE69318042T2 (de)	1998-08-06
HK1010069A1 (en)	1999-06-11

Publication	Publication Date	Title
DE69117389D1 (de)	1996-04-04	Flacher Dünnfilmmagnetkopf
KR0134944B1 (en)	1998-04-22	Thin film magnetic head
DE69702013D1 (de)	2000-06-21	Dünnfilm-Magnetkopf
DE69132304D1 (de)	2000-08-17	Aufzeichnungsgerät mit Aufzeichnungsköpfen
DE69204869D1 (de)	1995-10-26	Dünnschichtmagnetkopf.
DE69024604D1 (de)	1996-02-15	Filmtransporteinrichtung mit magnetischer Informationsaufzeichnung
DE69221962D1 (de)	1997-10-09	Dünnfilmmagnetkopf
DE69411600D1 (de)	1998-08-20	Druckvorrichtung mit Kassette
DE69116602D1 (de)	1996-03-07	Magnetwiderstandseffekt-Dünnfilmkopf
DE69025821D1 (de)	1996-04-18	Dünnfilm-Magnetkopf
DE69218711D1 (de)	1997-05-07	Magnetowiderstandseffekt-Dünnfilmmagnetkopf
DE69025820D1 (de)	1996-04-18	Dünnfilmmagnetkopf
DE68915064D1 (de)	1994-06-09	Dünnschicht-Magnetkopf.
DE69123487D1 (de)	1997-01-23	Dünnfilmmagnetkopf
DE68923868D1 (de)	1995-09-21	Rhombenförmiges dünnfilm-magnetelement.
DE69226567D1 (de)	1998-09-17	Integrierter Dünnfilm-Magnetkopf
DE68909835D1 (de)	1993-11-18	Dünnschichtmagnetkopf.
DE69516215D1 (de)	2000-05-18	Magneto-Widerstandseffekt-Dünnfilmmagnetkopf
DE69120866D1 (de)	1996-08-22	Magnetowiderstandseffekt-Dünnfilmmagnetkopf
DE69805126D1 (de)	2002-06-06	Dünnschichtmagnetkopf
DE69119860D1 (de)	1996-07-04	Dünnfilmmagnetkopf
DE69318042D1 (de)	1998-05-20	Dünnfilmmagnetköpfe mit dünnen nickelunterlagen
DE69118756D1 (de)	1996-05-23	Dünnfilmmagnetkopf
DE59304159D1 (de)	1996-11-21	Flexible magnetische Aufzeichnungsträger mit Rückschicht
DE3888955D1 (de)	1994-05-11	Dünnfilmmagnetkopf.

Legal Events

Date	Code	Title	Description
1999-05-12	8364	No opposition during term of opposition
2001-05-31	8327	Change in the person/name/address of the patent owner	Owner name: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US
2001-05-31	8328	Change in the person/name/address of the agent	Free format text: HENKEL, FEILER & HAENZEL, 81675 MUENCHEN
2005-09-08	8339	Ceased/non-payment of the annual fee