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Magnetic recording medium having a dimensional variation

專利號
US10867630B2
公開日期
2020-12-15
申請人
Sony Corporation（JP Tokyo）
發(fā)明人
Noboru Sekiguchi; Minoru Yamaga
IPC分類
G11B5/62; G11B5/733; G11B5/706; C23C14/00; G11B5/735
技術(shù)領(lǐng)域
recording,magnetic,layer,medium,in,σmd,δw,nm,or,average
地域： Tokyo

摘要

The average thickness tT of a magnetic recording medium meets the requirement that tT≤5.5 [μm], and the dimensional change amount Δw in the width direction of the magnetic recording medium with respect to the tension change in the longitudinal direction of the magnetic recording medium meets the requirement that 700 ppm/N≤Δw.

說明書

FIG. 6 is a cross-sectional view illustrating the configuration of a magnetic particle according to a modification example.

FIG. 7 is a cross-sectional view illustrating the configuration of a magnetic recording medium according to a modification example.

FIG. 8 is a cross-sectional view illustrating the configuration of a magnetic recording medium according to a second embodiment.

FIG. 9 is a schematic view illustrating the configuration of a sputtering apparatus.

FIG. 10 is a cross-sectional view illustrating the configuration of a magnetic recording medium according to a third embodiment.

DETAILED DESCRIPTION

Embodiments of the present disclosure will be described in the following order.

1 First Embodiment (Example of Coating Type Magnetic Recording Medium)

2 Second Embodiment (Example of Vacuum Thin Film Type Magnetic Recording Medium)

3 Third Embodiment (Example of Vacuum Thin Film Type Magnetic Recording Medium)

1 First Embodiment

[Overview]

權(quán)利要求

1
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