HK113796A - Process for producing a thin-film magnetic tape head - Google Patents

Process for producing a thin-film magnetic tape head

Info

Publication number
HK113796A
HK113796A HK113796A HK113796A HK113796A HK 113796 A HK113796 A HK 113796A HK 113796 A HK113796 A HK 113796A HK 113796 A HK113796 A HK 113796A HK 113796 A HK113796 A HK 113796A
Authority
HK
Hong Kong
Prior art keywords
thin
magnetic tape
tape head
film magnetic
producing
Prior art date
Application number
HK113796A
Inventor
Dietmar Uhde
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of HK113796A publication Critical patent/HK113796A/en

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
    • G11B5/31—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
    • 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

Abstract

There is no known feasible way of producing a true thin-film magnetic tape head with azimuth. A gap inclination (azimuth) can be made only by mechanically machining the substrate. The aim of the invention is to produce a thin-film magnetic tape head without putting two half-blocks together. According to the invention, a thin-film magnetic tape head (1, 6, 7, 8, 9) is produced in fifteen process stages in which the 'hour-glass effect' is of prime importance. The process of the invention for producing a thin-film magnetic tape head combines the advantages of planar thin-film technology and gap production with the magnetic and mechanical advantages of conventionally manufactured heads. Magnetic tape devices, especially video recorders.
HK113796A 1990-04-23 1996-06-27 Process for producing a thin-film magnetic tape head HK113796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4012823A DE4012823A1 (en) 1990-04-23 1990-04-23 METHOD FOR PRODUCING A THIN FILM MAGNETIC TAPE HEAD

Publications (1)

Publication Number Publication Date
HK113796A true HK113796A (en) 1996-07-05

Family

ID=6404859

Family Applications (1)

Application Number Title Priority Date Filing Date
HK113796A HK113796A (en) 1990-04-23 1996-06-27 Process for producing a thin-film magnetic tape head

Country Status (10)

Country Link
EP (1) EP0526509B1 (en)
JP (1) JP2977897B2 (en)
KR (1) KR100198864B1 (en)
AT (1) ATE117452T1 (en)
AU (1) AU7673591A (en)
CA (1) CA2080479A1 (en)
DE (2) DE4012823A1 (en)
ES (1) ES2069290T3 (en)
HK (1) HK113796A (en)
WO (1) WO1991016703A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399479A (en) * 1981-02-04 1983-08-16 Eastman Kodak Company Thin film magnetic head having good low frequency response
JPS5996527A (en) * 1982-11-22 1984-06-04 Olympus Optical Co Ltd Production of magnetic head
EP0233086B1 (en) * 1986-02-13 1992-01-29 Sony Corporation Thin film magnetic head
US4853080A (en) * 1988-12-14 1989-08-01 Hewlett-Packard Lift-off process for patterning shields in thin magnetic recording heads
US5016342A (en) * 1989-06-30 1991-05-21 Ampex Corporation Method of manufacturing ultra small track width thin film transducers

Also Published As

Publication number Publication date
KR100198864B1 (en) 1999-06-15
EP0526509A1 (en) 1993-02-10
DE59104338D1 (en) 1995-03-02
EP0526509B1 (en) 1995-01-18
ATE117452T1 (en) 1995-02-15
JPH05508254A (en) 1993-11-18
DE4012823A1 (en) 1991-11-14
CA2080479A1 (en) 1991-10-24
ES2069290T3 (en) 1995-05-01
JP2977897B2 (en) 1999-11-15
AU7673591A (en) 1991-11-11
WO1991016703A1 (en) 1991-10-31

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20060415