发明名称 FORMATION OF ABSORBER FOR X-RAY MASK
摘要 PURPOSE:To enable configuration control of an X-ray mask absorber by controlling a sidewall angle of a resist pattern using dispersed X-ray during formation of the resist pattern. CONSTITUTION:A surface light emitting X-ray source 7 is used as an X-ray source. When exposure is carried out, half-shaded unsharp delta is caused. As a result of the generation of the half-shaded unsharp, for example, if exposure is carried out immediately below an X-ray source and development is carried out using a high resolution negative resist as a resist, a resist pattern 2 is shaped to a trapezoid. Meanwhile, when a positive resist is used, the resist pattern 2 is shaped to a reverse-trapezoid. Therefore, a sidewall angle of the resist pattern can be freely changed by an emission area of an X-ray source and a distance between the X-ray source and a mask, thereby enabling easy control.
申请公布号 JPH04111429(A) 申请公布日期 1992.04.13
申请号 JP19900228224 申请日期 1990.08.31
申请人 CANON INC 发明人 IKEDA TSUTOMU
分类号 G03F1/22;G03F1/68;H01L21/331 主分类号 G03F1/22
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