Patent ID: 7470374
Filing Date: 2008-12-30
Classification: G11B

Abstract:
1. A manufacturing method of a magnetic recording medium comprising: a resist layer processing step of processing a resist layer of an object to be processed in a predetermined pattern, in the object a continuous recording layer, a first mask layer, a second mask layer, and the resist layer being formed on a surface of a substrate in that order; a second mask layer processing step of processing the second mask layer in the pattern based on the resist layer; a resist layer removal step of removing the resist layer on the second mask layer completely and processing the first mask layer in the pattern based on the second mask layer; and a continuous recording layer processing step of processing the continuous recording layer in the pattern by dry etching based on the first mask layer to divide the continuous recording layer into a number of divided recording elements, wherein the second mask layer having a lower etching rate in the resist layer removal step than that of the first mask layer; the first mask layer having a lower etching rate in the continuous recording layer processing step than that of the continuous recording layer; and the resist layer removal step is performed before the continuous recording layer processing step.