Incompletely condensed POSS-based spin-on-glass networks for impeccable ultra low-k integration

Title
Incompletely condensed POSS-based spin-on-glass networks for impeccable ultra low-k integration
Authors
알버트 이성수Seung-Sock ChoiSung Yeoun OhHe Seung Lee김보민황승상백경열
Issue Date
2015-11
Publisher
Journal of materials chemistry. C, Materials for optical and electronic devices
Citation
VOL 3, 11605-11611
Abstract
Poly(methyl)silsesquioxane-based spin-on-glass resins incorporating both a cyclic precursor, 1,3,5,7-tetramethyl 1,3,5,7-tetrahydroxyl cyclosiloxane, and incompletely condensed methyl-substituted POSS were synthesized and their thermal, mechanical, and electrical properties were investigated as a function of the POSS loading content. By introducing incompletely condensed methyl-substituted POSS compounds at the molecular level as sol–gel precursors, exceptional thermal stability (>700 °C), good mechanical properties (elastic modulus >4.0 GPa), and an ultra-low dielectric constant (k = 1.8) were obtained. In addition to providing a new route towards fully poly(methyl)silsesquioxane-based spin-on-glass resins with the above properties, the realization of the application of integration circuits was evaluated to show that the ultra low-k, mechanically robust spin-on-glass materials were able to withstand harsh wet chemical and dry etching, as well as chemical mechanical planarization (CMP) processing.
URI
http://pubs.kist.re.kr/handle/201004/51011
ISSN
20507526
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KIST Publication > Article
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