Perpendicular magnetic recording—Its development and realization—

The principle of conventional magnetic recording is that magnetic fields are applied parallel to the plane of the magnetic medium. As described in this paper, the invention and development of a new method of placing the magnetized information perpendicular to the plane of the magnetic recording medi...

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Detalles Bibliográficos
Autor principal: IWASAKI, Shun-ichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japan Academy 2009
Materias:
Review
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3524294/
https://www.ncbi.nlm.nih.gov/pubmed/19212097
http://dx.doi.org/10.2183/pjab.85.37
Descripción
Sumario:The principle of conventional magnetic recording is that magnetic fields are applied parallel to the plane of the magnetic medium. As described in this paper, the invention and development of a new method of placing the magnetized information perpendicular to the plane of the magnetic recording medium is presented. The yield in the mass production of high-density hard disk drives (HDDs) for perpendicular recording is much higher than that of HDDs for conventional recording. Consequently, it is estimated that as many as 75% of the 500 million HDDs to be shipped this year will use this technology.

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