发明名称 MANUFACTURE OF MASK FOR TRANSFER
摘要 PURPOSE:To reduce the number of manufacturing processes as well as to eliminate the positioning of a pattern by a method wherein a pattern penetrating an absorption layer is formed on the absorption layer provided on a mask substrate, a resist layer is coated thereon, and energy rays are projected once from the side of the substrate. CONSTITUTION:An X-ray absorbing layer 2 is formed on an X-ray transmitting film substrate 1 by vapor-depositing a W-film, for example. An electron beam resist layer 5 is coated thereon, an electron beam 6 of the prescribed width is projected thereon, the projected part is removed by developing, and a resist pattern of the width W1 of about 0.3mum is formed. Then, after the absorbing layer 2 has been etched using the resist pattern as a mask, the resist layer 5 is removed. A negative photoresist layer 7 is coated on the layer 2, ultraviolet rays 8 are projected from the side of the substrate 1, and the resist layer 7 is subjected to exposure of both direct light and diffraction beam which pass through the resist pattern part. After a developing operation has been finished, the non-exposed part of the resist layer 7 is removed, a negative resist pattern is formed. Then, W is vapor-deposited on the layers 2 and 7, the pattern on the layer 7 is dissolved, and the mask for X-ray transfer is completed.
申请公布号 JPH01173715(A) 申请公布日期 1989.07.10
申请号 JP19870333417 申请日期 1987.12.28
申请人 MITSUBISHI ELECTRIC CORP 发明人 SHIGETOMI AKIRA
分类号 H01L21/28;G03F1/00;H01L21/027;H01L21/30;H01L21/338;H01L29/80;H01L29/812 主分类号 H01L21/28
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