发明名称 Photomask for forming small contact hole array and methods of fabricating and using the same
摘要 Photomasks that are used to form a fine contact hole array, a method of fabricating the photomask, and use of the photomask. The photomask includes a transparent substrate; a plurality of line-type opaque patterns being formed on the transparent substrate, for defining floodlighting portions for forming patterns; and phase-shifting regions being arranged on the transparent substrate between the opaque patterns at predetermined intervals, the phase-shifting regions defining floodlighting portions for contact holes. A fine and dense contact hole array can be easily formed using the photomask together with a customized illumination. Therefore, a fine contact hole of a good quality can be formed directly on a photoresist using the photomask without additional processes.
申请公布号 US7300746(B2) 申请公布日期 2007.11.27
申请号 US20060328788 申请日期 2006.01.10
申请人 SAMSUNG ELECTRONICS, CO., LTD. 发明人 KIM IN-SUNG
分类号 G03C5/00;H01L21/027;G03F1/00 主分类号 G03C5/00
代理机构 代理人
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