发明名称 Mask for making a semiconductor device and fabrication method thereof
摘要 A mask for a semiconductor device includes a frame having an opening therein, a membrane film formed on the frame, and a patterned light shield formed on the membrane via an interlayer. To form the mask, an interlayer is formed on a first silicon layer, and a second silicon layer is formed on the interlayer. The second silicon layer is selectively etched to thereby form a plurality of openings therethrough, and a light shield is formed in a corresponding one of the openings. The remaining second silicon layer is removed, and a predetermined region of the first silicon layer is etched to expose the interlayer therethrough. A membrane film is formed on an entire lower surface of the resultant structure, and a predetermined region of the interlayer is etched to expose a predetermined region of the membrane film.
申请公布号 US5902706(A) 申请公布日期 1999.05.11
申请号 US19970916328 申请日期 1997.08.22
申请人 LG SEMICON CO., LTD. 发明人 HUH, HOON
分类号 G03F1/16;G03F1/14;G03F1/22;H01L21/027;(IPC1-7):G03F9/00 主分类号 G03F1/16
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