JPS55157129A - Production of medium for magnetic recording - Google Patents

Production of medium for magnetic recording

Info

Publication number
JPS55157129A
JPS55157129A JP6158179A JP6158179A JPS55157129A JP S55157129 A JPS55157129 A JP S55157129A JP 6158179 A JP6158179 A JP 6158179A JP 6158179 A JP6158179 A JP 6158179A JP S55157129 A JPS55157129 A JP S55157129A
Authority
JP
Japan
Prior art keywords
mask
minute holes
layer
evaporation
film
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
JP6158179A
Other languages
Japanese (ja)
Inventor
Osamu Kubo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6158179A priority Critical patent/JPS55157129A/en
Publication of JPS55157129A publication Critical patent/JPS55157129A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To produce medium for in-face or vertical recording by approximately same processes, by providing a mask layer on the supporting material surface of a nonmagnetic material and by etching it selectively and by filling magnetic materials in many formed and arranged minute holes of specific size.
CONSTITUTION: For example, after polishing, SiO2 film 2 of a nonmagnetic material is caused to evaporation-adhere onto washed and dried Al plate 1 by the known method, and resin layer 4 is applied and formed on film 2. Next, a mask having minute holes whose maximum diameter is a recording minimum unit length or less is superposed onto layer 4 by the electron beam processing method and so on, and the mask is developed to form columnar resin 4' after irradiation of radiant rays. Next, redin 4' is removed to leave only the CR mask as it is after evaporation-adhesion of, for example, metal Cr, and this mask is oxidized to form CrO2 mask 5. Next, Ar ion beam and so on are irradiated to all the surface to form minute holes 6 regularly, and Al plate 1 on the bottom of minute holes 6 is plated with metal or alloy as a conductive layer, and magnetic material 7 is filled.
COPYRIGHT: (C)1980,JPO&Japio
JP6158179A 1979-05-21 1979-05-21 Production of medium for magnetic recording Pending JPS55157129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6158179A JPS55157129A (en) 1979-05-21 1979-05-21 Production of medium for magnetic recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6158179A JPS55157129A (en) 1979-05-21 1979-05-21 Production of medium for magnetic recording

Publications (1)

Publication Number Publication Date
JPS55157129A true JPS55157129A (en) 1980-12-06

Family

ID=13175233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6158179A Pending JPS55157129A (en) 1979-05-21 1979-05-21 Production of medium for magnetic recording

Country Status (1)

Country Link
JP (1) JPS55157129A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6602620B1 (en) 1998-12-28 2003-08-05 Kabushiki Kaisha Toshiba Magnetic recording apparatus, magnetic recording medium and manufacturing method thereof
US8153190B2 (en) 2003-07-19 2012-04-10 Samsung Electronics Co., Ltd. Patterned magnetic recording medium and method of manufacturing the same
US9053733B2 (en) 2010-04-14 2015-06-09 Kabushiki Kaisha Toshiba Magnetic recording medium with magnetic portions of different orientations and method of manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6602620B1 (en) 1998-12-28 2003-08-05 Kabushiki Kaisha Toshiba Magnetic recording apparatus, magnetic recording medium and manufacturing method thereof
US8153190B2 (en) 2003-07-19 2012-04-10 Samsung Electronics Co., Ltd. Patterned magnetic recording medium and method of manufacturing the same
US9053733B2 (en) 2010-04-14 2015-06-09 Kabushiki Kaisha Toshiba Magnetic recording medium with magnetic portions of different orientations and method of manufacturing the same

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