发明名称 PATTERNING METHOD AND METHOD FOR FORMING GRAY TONE MASK
摘要 <P>PROBLEM TO BE SOLVED: To provide a patterning method in which a first drawing pattern and a second drawing pattern are aligned with high accuracy when patterns are drawn as overlapped to form a pattern by using a plurality of patterning steps by use of a photolithographic process on the same substrate. <P>SOLUTION: The patterning method includes a step of forming a pattern by using a plurality of patterning steps by use of a photolithographic process on the same substrate, and the method includes steps of preparing a substrate on which an alignment mark to be used for alignment is formed, drawing a first pattern by aligning using the above alignment mark, and drawing a second pattern by aligning using the above alignment mark. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007248943(A) 申请公布日期 2007.09.27
申请号 JP20060073921 申请日期 2006.03.17
申请人 HOYA CORP 发明人 TAZOE TAKAHISA;SANO MICHIAKI
分类号 G03F7/20;G02F1/13;H01L21/027 主分类号 G03F7/20
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