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专利名称:Information recording medium, method for
manufacturing the medium, and apparatusfor manufacturing the medium
发明人:Ohkubo, Yoshiyuki,Nishizaka, Kan申请号:EP01110231.6申请日:19961216公开号:EP1127679B1公开日:20090304
摘要:In an optical disk obtained by pasting two substrates, air bubbles and the likeare removed from an adhesive layer between the substrates pasted together, and thethickness irregularity of the adhesive layer is suppressed to an allowable value or less. Aspacer (60) having a predetermined thickness is concentrically placed on a substrate (30).An adhesive (220) is applied onto a surface of the substrate (30) on which the spacer (60)is placed. Another substrate (40) is placed on the surface of the substrate (30) on whichthe adhesive (220) is applied. The substrates (30, 40) are rotated about the spacer (60) ata high speed. The excessive adhesive (220) sandwiched between the substrates (30, 40) isexpelled, together with air bubbles and the like, by using the centrifugal force producedby the rotation. With this process, an adhesive layer (50) having a thickness determined bythe thickness of the spacer (60) is left between the two substrates.
申请人:TOSHIBA KK
地址:JP
国籍:JP
代理机构:Henkel, Feiler & Hänzel
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