| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a magnetic storage medium while suppressing a variation in a magnetization-inversion magnetic field while using an ion doping system, and to provide a magnetic storage medium manufactured by the method and an information storage device. SOLUTION: The method performs a disappearance degree measurement process (step S103) for measuring a saturated magnetization disappearance degree caused by ion implantation to a sample, an anisotropic magnetic field calculation process (Step S104) which calculates an anisotropic magnetic field of a magnetic film before the disappearance of saturated magnetization on the precondition that when the saturated magnetization locally disappears at the measured disappearance degree in an area other than a protection area, the magnetization-inversion magnetic field in the protection area becomes equal to a predetermined magnetization-inversion magnetic field, and a magnetic disk manufacturing process (step S108) which forms a magnetic film having the calculated anisotropic magnetic field and performs local ion implantation to the magnetic film to complete a bit-patterned magnetic disk. COPYRIGHT: (C)2010,JPO&INPIT |
