Fabrication of 0.2 mu m hole patterns in KrF excimer laser lithography

被引:2
|
作者
Asano, M
Kawano, K
Tanaka, S
Onishi, Y
机构
关键词
KrF excimer laser lithography; subquarter micron; 1 Gbit DRAM; halftone phase-shifting mask; SiNx; chemically amplified resist; 0.2 mu m hole pattern; resist film; surfactant; 0.15 mu m hole pattern;
D O I
10.1143/JJAP.36.2640
中图分类号
O59 [应用物理学];
学科分类号
摘要
This paper describes the fabrication of 0.2 mu m hole resist patterns in KrF excimer Iaser lithography. BY using a SiNx single-layer halftone phase-shifting mask (PSM) and air in-house chemically amplified positive resist, 0.2 mu m hole resist patterns can be obtained with sufficient depth of focus (DOF), Furthermore, a 0.15 mu m hole resist pattern can also be fabricated by using the PSM.
引用
收藏
页码:2640 / 2641
页数:2
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