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Journal of Nanotechnology
Volume 2012 (2012), Article ID 324380, 22 pages
http://dx.doi.org/10.1155/2012/324380
Review Article

A Review on Aerosol-Based Direct-Write and Its Applications for Microelectronics

1Department of Mechanical Engineering, Center for Nanoscale Science and Engineering, North Dakota State University, Fargo, ND 58105, USA
2Center for Micro and Nanoscale Dynamics of Dispersed Systems, Bashkir State University, Ufa 450076, Russia

Received 25 December 2011; Accepted 4 June 2012

Academic Editor: Kyoung Moon

Copyright © 2012 Justin M. Hoey et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aerosol-based direct-write refers to the additive process of printing CAD/CAM features from an apparatus which creates a liquid or solid aerosol beam. Direct-write technologies are poised to become useful tools in the microelectronics industry for rapid prototyping of components such as interconnects, sensors, and thin film transistors (TFTs), with new applications for aerosol direct-write being rapidly conceived. This paper aims to review direct-write technologies, with an emphasis on aerosol-based systems. The different currently available state-of-the-art systems such as Aerosol Jet CAB-DW, MCS, and aerodynamic lenses are described. A review and analysis of the physics behind the fluid-particle interactions including Stokes and Saffman force, experimental observations, and how a full understanding of theory and experiments can lead to new technology are presented. Finally, the applications of aerosol direct-write for microelectronics are discussed.