发明名称 PHOTOMASK
摘要 PURPOSE:To prevent the pollution of a photomask by coating the main face of the photomask with a peelable protective film made of electric conductor to inhibit the photomask from being charged with static electricity. CONSTITUTION:An electrically conductive metallic film or an electrically conductive film of resin kneaded with metallic powder as a protective film 3 is peelably stuck to the main face of a photomask 2 made of glass plate having a desired light transmitting pattern. Thus, the photomask does not cause pollution due to static electricity, so a water is patterned in an enhanced yield.
申请公布号 JPS57178241(A) 申请公布日期 1982.11.02
申请号 JP19810062505 申请日期 1981.04.27
申请人 HITACHI SEISAKUSHO KK 发明人 MATSUMOTO YOSHIKI;MATSUMOTO HIROMITSU
分类号 G03F1/00;G03F1/40;H01L21/027 主分类号 G03F1/00
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