Lithography using electron beam induced etching of a carbon film
作者:
D. Wang,
P. C. Hoyle,
J. R. A. Cleaver,
G. A. Porkolab,
N. C. MacDonald,
期刊:
Journal of Vacuum Science&Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
(AIP Available online 1995)
卷期:
Volume 13,
issue 5
页码: 1984-1987
ISSN:1071-1023
年代: 1995
DOI:10.1116/1.588119
出版商: American Vacuum Society
关键词: CARBON;ETCHING;GOLD;HYDROGEN ADDITIONS;SILICON;SPATIAL RESOLUTION;THIN FILMS;C:H;Au;Si
数据来源: AIP
摘要:
A focused electron beam was found, in the presence of oxygen gas, to induce the etching of a plasma enhanced chemical vapor deposited amorphous hydrogenated carbon (PECVDa‐C:H) film. This reaction was used to pattern the film directly, eliminating the need for subsequent development of the exposed areas (as required for conventional resists). Pattern transfer from the film into gold and into silicon was investigated. Submicrometer patterns have been transferred from a 50‐nm‐thick PECVDa‐C:H film into a gold film by wet chemical etching. With a silicon substrate, the exposure process produced an etch‐resistant layer on the surface.
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