MULTILAYER INFORMATION RECORDING MEDIUM MANUFACTURING METHOD, MULTILAYER INFORMATION RECORDING MEDIUM MANUFACTURING APPARATUS, AND MULTILAYER INFIRMATION RECORDING MEDIUM

摘要

The invention provides a multilayer information recording medium manufacturing method, a multilayer information recording medium manufacturing apparatus, and a multilayer information recording medium that enable to make a distance from a light incident surface of the multilayer information recording medium to a farthest information recording layer thereof uniform within a plane of the medium. A multilayer information recording medium manufacturing apparatus (1) is provided with a sputtering device (3) that forms at least three information recording layers, a screen printing machine (4) that forms a first intermediate layer by screen printing, and forms a second intermediate layer by screen printing in such a manner that thickness variation of the multilayer information recording medium having the first intermediate layer is suppressed, and a spin coating device (5) that forms a cover layer by a spin coating method in such a manner that a thickness of an inner periphery of the multilayer information recording medium having the second intermediate layer becomes smaller than a thickness of an outer periphery of the multilayer information recording medium.