Development of CNT based sensor array on a MUMPs chip

Abstract

A 10 × 10 Carbon Nanotube (CNT) based sensor array is under development on a micro chip. By using dielectrophoretic technique, multi-walled carbon nanotubes (MWNT) bundles were successfully and repeatedly manipulated between an array of fabricated microelectrodes. Experimental results showed that the sensors could be operated in μW range. It means their power dissipation is much smaller than conventional polysilicon sensors. In addition, microspotting is employed to realize this nanodevice manufacturing of CNT based sensors and increase the yield of the process. This feasible batch manufacturable method will dramatically reduce production costs and production time of nano sensing devices and potentially enable fully automated assembly of CNT based devices. © 2006 IEEE.