发明名称 Method for fabricating a stencil mask
摘要 Disclosed is a method for fabricating a stencil mask for use in electron beam lithography which improves resolution by effectively reducing beam blur resulting from coulomb repulsion effects in the electron beam. The disclosed method includes fabricating a first mask and a second mask that are then aligned and joined to form the final stencil mask. The structure of the second mask limits the number and controls the initial pattern of the electrons that pass through the stencil mask to limit beam blur, narrow the incident energy distribution, and improve the resolution of the final image.
申请公布号 US6475399(B2) 申请公布日期 2002.11.05
申请号 US20010892552 申请日期 2001.06.28
申请人 HYNIX SEMICONDUCTOR INC. 发明人 CHOI JAE SEUNG
分类号 G03F1/00;B81B3/00;G03F1/08;G03F1/16;(IPC1-7):B44C1/22;C03C15/00;C23F1/00;H01L21/00 主分类号 G03F1/00
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