Resin layer formation method, resin layer formation device, and disk manufacturing method

A resin layer formation method, resin layer formation device, disk and disk manufacturing method for making a resin layer uniform on a substrate before lamination or on a substrate to be coated by a simple procedure are provided. Adhesive A is coated at the inner circumference side while rotating a...

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Bibliographic Details
Main Authors Ito, Tomokazu, Nishigaki, Hisashi, Kawakami, Tsukasa, Narita, Haruka, Takizawa, Yoji, Hanada, Takumi, Iwami, Munenori
Format Patent
LanguageEnglish
Published 03.01.2012
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Summary:A resin layer formation method, resin layer formation device, disk and disk manufacturing method for making a resin layer uniform on a substrate before lamination or on a substrate to be coated by a simple procedure are provided. Adhesive A is coated at the inner circumference side while rotating a substrate P at low speed, a first adhesive layer AL is formed on the surface of the substrate P by rotating the substrate P at high speed, a step difference section H is formed around a rotation center of the substrate P by irradiating ultraviolet on an area in the inner circumference side of the first adhesive layer AL and hardening the area, the adhesive A is coated at the rotation center side from the step difference section H on the substrate P, and a second adhesive layer AL is formed on the first adhesive layer AL by rotating the substrate P at high speed. The first adhesive layer AL and the second adhesive layer AL are integrated to form a uniform adhesive layer B as a whole.