发明名称 METHOD AND DEVICE FOR DEVELOPING OPTICAL DISK MASTER
摘要 PURPOSE:To attain an excellent uniform development capacity and realize good reproducibility and easy handling by quickly moving a developing tank with an air cylinder and quickly immersing a photoresist disk in a developer to start development and tacking out the disk from the developer and pouring water onto the disk like a shower simultaneously to quickly stop development. CONSTITUTION:A glass disk 2 to which a photoresist film 1 to which a signal pattern is exposed is stuck is fixed onto a turntable 23 by vacuum. A shaft 5 starts to slowly rotate, and a photoresist disk 15 is completely immersed in a developer 16 to start development, and formation of a rugged pattern is started, and the diffracted light of the first order of an He-Ne laser light diffracted by this rugged pattern is made incident on a sensor 9. When a ratio of the output of the diffracted light sensor 9 to that of a light-transmissive sensor 8 reaches a certain value, discharge of the developer 16 is started, and a pure water 21 is poured onto the photoresist film 1 like a shower, and the photoresist disk 15 is put in pure water when the quantity of the pure water reaches a certain value.
申请公布号 JPS62246157(A) 申请公布日期 1987.10.27
申请号 JP19860088025 申请日期 1986.04.18
申请人 HITACHI LTD;HITACHI MAXELL LTD 发明人 ITO SHO;YASUI TOSHIAKI
分类号 G11B7/26;G03F7/00;G03F7/30 主分类号 G11B7/26
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