期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 326, 期 1, 页码 186-190出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2008.07.024
关键词
ordered mesoporous silica film; HMDS; calcination; MTES; Brij-76
资金
- IT RD [2006-S054-01]
- MOST
- POSTECH
To reduce signal delay in ultra-large-scale integrated circuits, an intermetal dielectric with low dielectric constant is required. Ordered mesoporous silica film is appropriate for use as an intermetal dielectric due to its low dielectric constant and superior mechanical properties. To reduce the dielectric constant, an ordered mesoporous silica film prepared by a tetraethoxysilane/methyltriethoxysilane silica precursor and Brij-76 block copolymer was surface-modified by hexamethyldisilazane (HMDS) treatment. HMDS treatment substituted -OH with -Si(CH3)(3) groups On the silica surface. After treatment, ordered mesoporous silica films were calcined at various calcination temperatures, and the calcination temperature to obtain optimal Structural, electrical, and mechanical Properties was determined to be approximately 300 degrees C. (C) 2008 Elsevier Inc. All rights reserved.
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