发明名称 PRODUCTION OF PHASE SHIFT MASK
摘要 <p>PURPOSE:To prevent uneven etching of a resist and deterioration of characteristics as a shifter by successively subjecting the resist to development, irradiation with far UV and etching. CONSTITUTION:The resist 2 is patterned with electron beams 1 and developed to form a resist pattern. The entire surface of the resulting mask is irradiated with far UV 5 and the light shielding film 3 is over-etched to form a shifter part 6. Since the resist 2 is hardened by irradiation with far UV 5, it is prevented from sagging at the shifter part 6 and an etching soln. penetrates easily between the resist 2 and the glass substrate 4, accordingly uniform dimensions of the shifter part 6 and a satisfactory edge shape of the light, shielding film 3 can be ensured.</p>
申请公布号 JPH05107735(A) 申请公布日期 1993.04.30
申请号 JP19910270589 申请日期 1991.10.18
申请人 MATSUSHITA ELECTRON CORP 发明人 NIIKE TAKUMI
分类号 G03F1/29;G03F1/68;H01L21/027 主分类号 G03F1/29
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