发明名称 PRODUCTION OF PHASE SHIFT MASK
摘要 PURPOSE:To shorten the time for production by patterning a resist for patterning a shifter to a shape which itself is usable as the shifter, then making inspection. CONSTITUTION:A light shielding film 2 is formed on a glass substrate 3 and is patterned. A shifter material 1 is then formed thereon and a resist 4 is applied thereon. The resist is exposed and developed (so-called patterning) to form the resist 4 to the shape which is usable as the shifter. The inspection is made in the state of having such structure. Then, the removal of the resist 4 and the reapplication thereof are merely necessitated and there is no need for forming the shifter from the shifter material 1 if a defect is discovered at this time. The shorter production process is, therefore, necessitated. This resist is usable as a phase shift mask in the state of the as-inspected structure and, therefore, the use of the resist once in this state in case of a short delivery time or the like and the patterning of the shifter material 1 to the final structure after a time allowance is obtd. are feasible as well.
申请公布号 JPH0619112(A) 申请公布日期 1994.01.28
申请号 JP19920176807 申请日期 1992.07.03
申请人 OKI ELECTRIC IND CO LTD 发明人 SAITO TARO
分类号 G03F1/30;G03F1/68;G03F1/80;G03F1/84;H01L21/027 主分类号 G03F1/30
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