MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURE THEREOF, AND MAGNETIC DISK APPARATUS

摘要

The surface of a disk medium is smoothened which comprises a substrate whose surface includes grooves and lands. A nonmagnetic underlayer (3) and a magnetic recording layer (4) are formed on the substrate (2) that includes grooves (8) and lands (9). Smoothing nonmagnetic film (5) is deposited to fill the grooves (8), which are covered with the nonmagnetic underlayer (3) and the magnetic recording layer (4), so that it may reach the same level as the height of the magnetic recording layer (4) above the lands (9).