NOVEL SUPERRESOLUTION TECHNIQUE FOR OPTICAL LITHOGRAPHY - NONLINEAR MULTIPLE EXPOSURE METHOD

被引:20
作者
OOKI, H
KOMATSU, M
SHIBUYA, M
机构
[1] Optical Division, Nikon Corporation, Shinagawa-ku, Tokyo, 140
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1994年 / 33卷 / 2A期
关键词
OPTICAL LITHOGRAPHY; RESIST; NONLINEAR PHOTOSENSITIVITY; 2-PHOTON ABSORPTION; MULTIPLE EXPOSURE; CUTOFF FREQUENCY;
D O I
10.1143/JJAP.33.L177
中图分类号
O59 [应用物理学];
学科分类号
摘要
A novel method for optical lithography using a resist with nonlinear photosensitivity and the multiple exposure technique is described. By means of this method, the diffraction-limited optical cutoff frequency is raised markedly, which cannot be realized by any of the other methods proposed previously. A brief explanation of the principle is given and computer simulations are demonstrated.
引用
收藏
页码:L177 / L179
页数:3
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