MASTER CARRIER FOR MAGNETIC TRANSFER

PURPOSE: A master carrier for magnetic transfer is provided to improve the quality of a transfer signal by reducing recording loss and durability by preventing a pattern of the master carrier from being damaged. CONSTITUTION: A master carrier for magnetic transfer is equipped with a substrate of an...

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Bibliographic Details
Main Authors NIITSUMA KAZUHIRO, NISHIKAWA MASAKAZU, YASUNAGA TADASHI
Format Patent
LanguageEnglish
Korean
Published 18.11.2002
Edition7
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:PURPOSE: A master carrier for magnetic transfer is provided to improve the quality of a transfer signal by reducing recording loss and durability by preventing a pattern of the master carrier from being damaged. CONSTITUTION: A master carrier for magnetic transfer is equipped with a substrate of an uneven pattern. The uneven pattern is formed from a magnetic material corresponding to information transferred to a plate board. A concave pattern(32a) in the uneven pattern has four round corners of which radius(R) ranges from 1% to 47% of the width(W) of a data track on the disk. 마스터담체와 슬레이브매체를 밀착시키고 전사용 자계를 인가하여 자기전사를 행할 때의, 기록손실의 저감에 의한 전사신호품위의 향상, 마스터담체의 패턴의 파손방지에 의한 내구성의 향상 및 전사불량을 억제한다. 마스터담체(3)는 기판(31) 상에 전사하는 정보에 대응한 자성체(32)에 의한 요철패턴을 보유하고, 이 요철패턴의 대략 직사각형상의 오목패턴(32a)에 있어서의 꼭대기면 코너부의 평면형상의 라운드의 반경(R)을, 트랙폭(W)에 대해서 1% ~ 47%로 하고, 코너부의 파손방지와 기록손실의 저감을 도모한다.
Bibliography:Application Number: KR20020025781