JPS5622221A - Protective film growing method for magnetic disk - Google Patents

Protective film growing method for magnetic disk

Info

Publication number
JPS5622221A
JPS5622221A JP9766779A JP9766779A JPS5622221A JP S5622221 A JPS5622221 A JP S5622221A JP 9766779 A JP9766779 A JP 9766779A JP 9766779 A JP9766779 A JP 9766779A JP S5622221 A JPS5622221 A JP S5622221A
Authority
JP
Japan
Prior art keywords
anode
cathode
protective film
disk
magnetic disk
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
JP9766779A
Other languages
Japanese (ja)
Other versions
JPS5845089B2 (en
Inventor
Kazunori Tani
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9766779A priority Critical patent/JPS5845089B2/en
Publication of JPS5622221A publication Critical patent/JPS5622221A/en
Publication of JPS5845089B2 publication Critical patent/JPS5845089B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To form a protective film having a number of unevenness, by using the magnetic disk containing only the magnetic layer formed on the surface as the anode plus the protective film material used for the cathode respectively and then inserting the mask having a number of pores between the anode and the cathode to secure the glow discharge.
CONSTITUTION: Sputtering device 1 using the glow discharge is put into casing 2 into which the inactive gas such as Ar or the like is enclosed hermetically. Then cathode 3 of SiO2, Al2O3 and the like functioning as the protective material, anode 5 of magnetic disk 5 with only magnetic layer 5b formed on substrate 5a plus mask 6 having a number of pores 6a between cathode 3 and anode 5 are provided respectively within casing 2. The DC voltage is applied between cathode 3 and anode 5 to make the metal molecule such as SiO2 or the like stick to anode 5 through the sputtering method. For the metal molecule, those which passed through pore 6a as indicated by the arrow stick on layer 5b of the disk to form protective film 5e having hollowed area 5d connecting to protruded area 5c. The lubricant is impregnated into area 5d of disk 5c. As a result, the magnetic head can be prevented from being adsorbed to disk 5 or receiving the damage.
COPYRIGHT: (C)1981,JPO&Japio
JP9766779A 1979-07-31 1979-07-31 Method for producing protective film on magnetic disks Expired JPS5845089B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9766779A JPS5845089B2 (en) 1979-07-31 1979-07-31 Method for producing protective film on magnetic disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9766779A JPS5845089B2 (en) 1979-07-31 1979-07-31 Method for producing protective film on magnetic disks

Publications (2)

Publication Number Publication Date
JPS5622221A true JPS5622221A (en) 1981-03-02
JPS5845089B2 JPS5845089B2 (en) 1983-10-07

Family

ID=14198386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9766779A Expired JPS5845089B2 (en) 1979-07-31 1979-07-31 Method for producing protective film on magnetic disks

Country Status (1)

Country Link
JP (1) JPS5845089B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605423A (en) * 1983-06-22 1985-01-12 Fujitsu Ltd Magnetic recording medium and its production
JPH0194518A (en) * 1987-10-06 1989-04-13 Hitachi Ltd Magnetic recording medium
JPH0171310U (en) * 1987-10-30 1989-05-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605423A (en) * 1983-06-22 1985-01-12 Fujitsu Ltd Magnetic recording medium and its production
JPH0194518A (en) * 1987-10-06 1989-04-13 Hitachi Ltd Magnetic recording medium
JPH0171310U (en) * 1987-10-30 1989-05-12

Also Published As

Publication number Publication date
JPS5845089B2 (en) 1983-10-07

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