JPS6484453A - Information recording medium - Google Patents

Information recording medium

Info

Publication number
JPS6484453A
JPS6484453A JP62242965A JP24296587A JPS6484453A JP S6484453 A JPS6484453 A JP S6484453A JP 62242965 A JP62242965 A JP 62242965A JP 24296587 A JP24296587 A JP 24296587A JP S6484453 A JPS6484453 A JP S6484453A
Authority
JP
Japan
Prior art keywords
film
aluminium
degree
vacuum
chamber
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
JP62242965A
Other languages
Japanese (ja)
Inventor
Nobuo Shimizu
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP62242965A priority Critical patent/JPS6484453A/en
Publication of JPS6484453A publication Critical patent/JPS6484453A/en
Pending legal-status Critical Current

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  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To form both a reflection film and a protection film in the same chamber, and to improve weather resistance by forming a mixed film, in which the ratio of a metal and the nitride or the oxide of the metal varies continuously, on a metallic reflection film. CONSTITUTION:A substrate 2 whose recording surface 3 is faced front to an aluminium target 4, is placed in the chamber 1 of a sputtering device, and a degree of vacuum is made below 5X10<-5> Torr by an exhausting system 11, and argon gas 6 is introduced so that the degree of vacuum comes to 500-400m Torr, and a voltage is impressed to the aluminium target 4 so as to make it discharge, and an aluminium film 5 is formed on the recording surface 3 of the substrate 2. Next, nitrogen gas 8 is introduced into the chamber 1, and the degree of vacuum is made to 55-500mTorr, and a ceramic film 7 varying from pure aluminium to aluminium nitride, in which the ratio of the ceramic varies continuously from 0% up to 100%, is formed on the aluminium film 5, and a label 9 is printed.
JP62242965A 1987-09-28 1987-09-28 Information recording medium Pending JPS6484453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242965A JPS6484453A (en) 1987-09-28 1987-09-28 Information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242965A JPS6484453A (en) 1987-09-28 1987-09-28 Information recording medium

Publications (1)

Publication Number Publication Date
JPS6484453A true JPS6484453A (en) 1989-03-29

Family

ID=17096864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242965A Pending JPS6484453A (en) 1987-09-28 1987-09-28 Information recording medium

Country Status (1)

Country Link
JP (1) JPS6484453A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635310A (en) * 1989-10-20 1997-06-03 Casio Computer Co., Ltd. ZnS dielectric thin film and magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635310A (en) * 1989-10-20 1997-06-03 Casio Computer Co., Ltd. ZnS dielectric thin film and magnetic recording medium

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