KR930008766A - Overwrite Magneto-optical Disc - Google Patents

Overwrite Magneto-optical Disc Download PDF

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Publication number
KR930008766A
KR930008766A KR1019910019052A KR910019052A KR930008766A KR 930008766 A KR930008766 A KR 930008766A KR 1019910019052 A KR1019910019052 A KR 1019910019052A KR 910019052 A KR910019052 A KR 910019052A KR 930008766 A KR930008766 A KR 930008766A
Authority
KR
South Korea
Prior art keywords
film
recording film
overwrite
magneto
laminated
Prior art date
Application number
KR1019910019052A
Other languages
Korean (ko)
Inventor
김용석
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910019052A priority Critical patent/KR930008766A/en
Publication of KR930008766A publication Critical patent/KR930008766A/en

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Abstract

본 발명은 겹쳐쓰기가 용이하도록 외부자장을 낮게함과 동시에 반사융을 높게하고 기록막을 보호하는 효과가 증대되도록 하여 높은 반송파대 잡음비(CNR)을 유지하고 신뢰성을 향상시켜주는 겹쳐쓰기형 광자기 디스크에 관한 것으로, 기판, 보호막, 기록막 및 반사막이 소정의 순서로 적층되며; 상기 기판은 PC(Poly-Carbonate)를 소정간격으로 트랙이 미리 형성되는 금형으로 스템핑(Stamping)하여 제조되고; 상기 기록막은 테르븀 철 코발트(TbFeCo)의 회토류-천이 금속계가 사용되며; 상기 보호막은 SiNx계가 사용되는 것에 있어서, 상기 반사막이 상기 기록막의 바로위에 적층되도록 하되, 그 재질이 백금코발트합금(Pt,Co)계가 구성하는 겹쳐쓰기형 광자기 디스크이다.The present invention provides an overwrite type magneto-optical disk which maintains a high carrier-to-noise ratio (CNR) and improves reliability by lowering an external magnetic field to facilitate overwriting, increasing reflection melting, and protecting a recording film. A substrate, a protective film, a recording film and a reflecting film are laminated in a predetermined order; The substrate is manufactured by stamping a PC (Poly-Carbonate) into a mold in which tracks are formed in advance at predetermined intervals; As the recording film, a rare earth-transition metal system of terbium iron cobalt (TbFeCo) is used; The protective film is a SiNx-based system, wherein the reflective film is laminated directly on the recording film, and the material is an overwrite magneto-optical disk composed of a platinum cobalt alloy (Pt, Co) system.

Description

겹쳐쓰기형 광자기 디스크Overwrite Magneto-optical Disc

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 2 도는 본 발명에서 구성한 겹쳐쓰기형 광자기 디스크,2 is an overwrite magneto-optical disk constructed in the present invention,

제 3 도의 ㈎는 기존의 디스크와 본 발명에서 구성한 겹쳐쓰기형 광자기 디스크 사이의 신호잡음 비교 그래프, 제 3 도의 ㈏는 기존의 디스크와 본 발명에서 구성한 겹쳐쓰기형 광자기 디스크 사이의 열화 비교 그래프.Fig. 3 is a graph of comparison of signal noise between a conventional disk and an overwrite magneto-optical disk constructed in the present invention, and Fig. 3 is a graph of degradation comparison between an existing disk and an overwrite magneto-optical disk constructed in the present invention. .

Claims (2)

기판상부에 SiNx계의 보호막이 적층되며 상기 보호막 상에 PtCo막이 형성된 기록막이 적층되어 상기 기록막상에 반사막이 적층되어 형성되는 것을 특징으로 하는 겹쳐쓰기형 광자기디스크.An overwrite type magneto-optical disc, characterized in that a protective film of SiNx-based is laminated on a substrate, and a recording film having a PtCo film is laminated on the protective film, and a reflective film is laminated on the recording film. 제 1항에 있어서, PtCo막은 Ptycory에서 80≤y≤90인 것을 특징으로 하는 겹쳐쓰기형 광자기디스크.The overwrite magneto-optical disk according to claim 1, wherein the PtCo film has a Pycory of 80≤y≤90. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910019052A 1991-10-29 1991-10-29 Overwrite Magneto-optical Disc KR930008766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910019052A KR930008766A (en) 1991-10-29 1991-10-29 Overwrite Magneto-optical Disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910019052A KR930008766A (en) 1991-10-29 1991-10-29 Overwrite Magneto-optical Disc

Publications (1)

Publication Number Publication Date
KR930008766A true KR930008766A (en) 1993-05-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910019052A KR930008766A (en) 1991-10-29 1991-10-29 Overwrite Magneto-optical Disc

Country Status (1)

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KR (1) KR930008766A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100463010B1 (en) * 2000-09-27 2004-12-23 캐논 가부시끼가이샤 Recording Medium and Image Forming Method Utilizing the Same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100463010B1 (en) * 2000-09-27 2004-12-23 캐논 가부시끼가이샤 Recording Medium and Image Forming Method Utilizing the Same

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