MAGNETIC RECORDING MEDIUM

摘要

PURPOSE:To minimize the peeling of a metallic magnetic thin film by providing a metallic layer over a nonmagnetic high polymer substrate through sputtering. CONSTITUTION:A bell jar 1 is partitioned into two parts; sputtering room A and vapor deposition room B. A base film 2 from an unwinder 3 passes through a cooling drum 4 for sputtering, where metal such as Al and Co/Ni is sputtered; and it enters the vacuum deposition room B, where a magnetic material such as Co/Ni is vapor deposited obliquely at a cooling drum 5. Then, the resulting film is wound around a winder 6.