Nanometer-scale patterning of self-assembled monolayer films on native silicon oxide

被引:27
作者
Inoue, A
Ishida, T
Choi, N
Mizutani, W
Tokumoto, H
机构
[1] Joint Res Ctr Atom Technol, Angstrom Technol Partnership, Tsukuba, Ibaraki 3050046, Japan
[2] JRCAT, Natl Inst Adv Interdisciplinary Res, Tsukuba, Ibaraki 3058562, Japan
[3] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan
关键词
D O I
10.1063/1.122340
中图分类号
O59 [应用物理学];
学科分类号
摘要
A nanoscale-patterning method on silicon oxide using a self-assembled monolayer (SAM) was developed. The silicon surface with native oxide was additionally oxidized locally in dry nitrogen atmosphere by the field-induced oxidation (FIO) technique using an atomic force microscope with a conductive cantilever, and then immersed in octadecyltrichlorosilane (OTS) solution. The contact angle and topography image revealed that the OTS layer was formed only on the native oxide. In contrast, when FIO was performed under the humidity of 88%, OTS SAM was formed on both FIO and native oxide. These results indicate that SAM formation on silicon oxides can be locally suppressed by FIO in a dry environment. By using this technique, we could fabricate a line structure of OTS SAM as narrow as 22 nm. (C) 1998 American Institute of Physics. [S0003-6951(98)02840-X].
引用
收藏
页码:1976 / 1978
页数:3
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