发明名称 Exposure mechanism
摘要 An exposure mechanism having a hole pattern for forming a resist pattern to be used in a photolithography process when a semiconductor device is fabricated, the hole pattern including a central light transmitting portion provided on a transparent substrate, through which exposed light can pass, a plurality of slit-shaped light transmitting portions provided around the central light transmitting portion, and a light intercepting portion provided on the transparent substrate for forming the central light transmitting portion and the slit-shaped light transmitting portions.
申请公布号 US5170293(A) 申请公布日期 1992.12.08
申请号 US19920835746 申请日期 1992.02.13
申请人 SHARP KABUSHIKI KAISHA 发明人 TANIMOTO, KEISUKE
分类号 G03F1/08;G02B5/00;G02B5/18;G03F1/70;G03F1/76;G03F7/20;H01L21/027;H01L21/30 主分类号 G03F1/08
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