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Air gap technology by selective ozone/TEOS deposition

A technology for fabrication of air gaps is presented which is based upon selective ozone/TEOS deposition of oxide. Due to the isotropic growth direction of this process, some disadvantages of the more common approaches by nonconformal CVD processes can be avoided. It is demonstrated that air gap te...

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Main Authors: Gabric, Z., Pamler, W., Schindler, G., Steinhogl, W., Traving, M.
Format: Conference Proceeding
Language:English
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Pamler, W.
Schindler, G.
Steinhogl, W.
Traving, M.
description A technology for fabrication of air gaps is presented which is based upon selective ozone/TEOS deposition of oxide. Due to the isotropic growth direction of this process, some disadvantages of the more common approaches by nonconformal CVD processes can be avoided. It is demonstrated that air gap technology has the potential to reduce the capacitance between adjacent metal lines roughly by a factor of 2 compared to full structures without air gaps.
doi_str_mv 10.1109/IITC.2004.1345723
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ispartof Proceedings of the IEEE 2004 International Interconnect Technology Conference (IEEE Cat. No.04TH8729), 2004, p.151-153
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subjects Air gaps
Applied sciences
Conducting materials
Delay systems
Electronics
Exact sciences and technology
Fabrication
Inorganic materials
Insulation
Lithography
Microelectronic fabrication (materials and surfaces technology)
Parasitic capacitance
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Semiconductor materials
Silicon on insulator technology
title Air gap technology by selective ozone/TEOS deposition
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