发明名称 Method of making resist pattern
摘要 A method of making a resist pattern is provided, which decreases or eliminates the fluctuation of deformation of original openings of a resist layer which is induced by the change of their density (i.e., the count of the original openings within a unit area) or by their location in the reflowing process. The method comprises the steps of (a) forming a resist layer on a target layer; (b) patterning the resist layer to form original openings and at least one slit in the resist layer; the slit surrounding the original openings and having a specific width; and (c) reflowing the resist layer patterned in the step (b) under heat to cause deformation in the original openings and the at least one slit, thereby contracting the original openings and eliminating the at least one slit; the original openings thus contracted serving as resultant openings for forming desired contact/via holes in the target layer; the resist layer having the resultant openings constituting a resist pattern.
申请公布号 US6589718(B2) 申请公布日期 2003.07.08
申请号 US20010757588 申请日期 2001.01.11
申请人 NEC ELECTRONICS CORPORATION 发明人 SAITO HIROFUMI
分类号 H01L21/027;G03F1/00;G03F1/08;G03F1/68;G03F7/039;G03F7/40;(IPC1-7):G03F7/40 主分类号 H01L21/027
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