Design of a manufacturable discrete track recording medium

被引:55
作者
Wachenschwanz, D [1 ]
Jiang, W [1 ]
Roddick, E [1 ]
Homola, A [1 ]
Dorsey, P [1 ]
Harper, B [1 ]
Treves, D [1 ]
Bajorek, C [1 ]
机构
[1] Komag Inc, San Jose, CA 95131 USA
关键词
discrete track recording (DTR); nano-imprint lithography; patterned media; thin-film media;
D O I
10.1109/TMAG.2004.838049
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The potential benefits of patterning discrete tracks onto a disk for magnetic data storage have long been investigated. A practical process for manufacturing a cost-effective discrete track recording (DTR) medium has prevented such a disk from being introduced into a product. In this paper, a process utilizing nano-imprint lithography techniques to create a land and groove structure on the surface of a disk substrate will be described. Design considerations for the geometry of the structure, as well as of the magnetic write and read widths of the head, are discussed. Data showing the magnetic characteristics and recording performance of a DTR medium are also presented.
引用
收藏
页码:670 / 675
页数:6
相关论文
共 13 条
[1]  
Bertram H., 1994, Theory of Magnetic Recording
[2]   THE EFFECT OF SPACING ON DEMAGNETIZATION IN MAGNETIC RECORDING [J].
BERTRAM, HN ;
NIEDERMEYER, R .
IEEE TRANSACTIONS ON MAGNETICS, 1982, 18 (06) :1206-1208
[3]   Planar patterned magnetic media obtained by ion irradiation [J].
Chappert, C ;
Bernas, H ;
Ferré, J ;
Kottler, V ;
Jamet, JP ;
Chen, Y ;
Cambril, E ;
Devolder, T ;
Rousseaux, F ;
Mathet, V ;
Launois, H .
SCIENCE, 1998, 280 (5371) :1919-1922
[4]  
ISHIDA T, 1993, IEICE T FUND ELECTR, VE76A, P1161
[5]   INPLANE ANISOTROPY IN THIN-FILM MEDIA - PHYSICAL ORIGINS OF ORIENTATION RATIO [J].
JOHNSON, KE ;
MIRZAMAANI, M ;
DOERNER, MF .
IEEE TRANSACTIONS ON MAGNETICS, 1995, 31 (06) :2721-2727
[6]   RECORDING CHARACTERISTICS OF SUB-MICRON DISCRETE MAGNETIC TRACKS [J].
LAMBERT, SE ;
SANDERS, IL ;
PATLACH, AM ;
KROUNBI, MT .
IEEE TRANSACTIONS ON MAGNETICS, 1987, 23 (05) :3690-3692
[7]   BEYOND DISCRETE TRACKS - OTHER ASPECTS OF PATTERNED MEDIA [J].
LAMBERT, SE ;
SANDERS, IL ;
PATLACH, AM ;
KROUNBI, MT ;
HETZLER, SR .
JOURNAL OF APPLIED PHYSICS, 1991, 69 (08) :4724-4726
[8]   Nanoscale patterning of magnetic islands by imprint lithography using a flexible mold [J].
McClelland, GM ;
Hart, MW ;
Rettner, CT ;
Best, ME ;
Carter, KR ;
Terris, BD .
APPLIED PHYSICS LETTERS, 2002, 81 (08) :1483-1485
[9]   Patterned media made from pre-etched wafers:: A promising route toward ultrahigh-density magnetic recording [J].
Moritz, J ;
Landis, S ;
Toussaint, JC ;
Bayle-Guillemaud, P ;
Rodmacq, B ;
Casali, G ;
Lebib, A ;
Chen, Y ;
Nozières, JP ;
Diény, B .
IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (04) :1731-1736
[10]  
SHEW LF, 1963, IEEE T BROADCAST TEL, V9, P56