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National Institute of Science and Technology of Micro and Nanoeletronic Systems (NAMITEC) Management committee Jacobus W. Swart (Coordinator) Raimundo Freire (Vice-coordinator) Altamiro Susin Linnyer Ruiz Nilton Morimoto Main researchers Altamiro Susin, Fernando Rangel, Ricardo Augusto Reis, José Alexandre Diniz, Stanislav Moshkalev, Sérgio Bampi, Marco Antônio Silveira, Jacobus Swart Main research topics The main goals of this project are the research and development of (a) systems-on-chip and sensor networks, (b) design/test methodology and EDA tools for low-power and fault tolerant analog, RF, and digital integrated circuits, (c) micro- and nano-electromechanical, photo- and optoelectronic devices as well as integration and packaging processes for MEMS and NEMS, (d) materials and processes for the fabrication of micro- and nano- integrated devices and circuits. Summary of achievements and perspectives In Wireless Sensor Networks (WSN) area, the INCT provided resources for the acquisition of sensor nodes capable of wireless communication for field experiment and considering power consumption reduction techniques. Wireless sensor networks for precision agriculture, fsugarcane culture conditions monitoring, fruit transportation conditions monitoring and ambient monitoring using frog vocalization recording and endangered species image recording are developed. In Integrated Circuits and IP Design area, an important result was the interaction between laboratories and the Design Houses from CI-Brazil program, providing a gateway between the private sector needs and the academy. In Electronic Design Automation (EDA) area, the visibility of EDA within researchers and students is desired. One action will be the realization of a Brazilian CadAthlon, a competition on EDA. The area of Semiconductor Devices has already provided to the NAMITEC network various sensors with different kinds of characteristics, such as pressure, gas and pH sensors, establishing a technologic base for the INCT. Besides two PhD thesis and thirteen master dissertations obtained in the project first year, two microfabrication courses were ministered and one patent of a prototype of ISFET (Ion Sensitive Field-Effect Transistor) was required. In Materials and Fabrication Techniques area, a new class of gas sensor has been developed, based on multi-wall carbon nanotubes, decorated with a variety of metal and oxide particles. The sensor uses self-heating by Joule effect, which can heat nanotubes and particles up to 400-500C, this way increasing strongly the sensitivity to gases, but with a very low power consumption (microwatts). Test with similar sensors based on ultrathin graphite films (“graphenes”) are in progress.

Main publications C. Fischer, J. Menezes, S. Moshkalev, A. Vaz, C. Verissimo, J. Swart, Fabrication of high-aspect ratio silicon nanopillars and nanocones using deep reactive ion etching. J. Vac. Sci. Technol. B, 27, 2732, 2009. I. Muller, R.M. Brito, C.E. Pereira, V. Brusamarello. Load Cells in Force Sense Analysis – Theory and a Novel Application. IEEE Instrumentation & Measurement Magazine, p. 15-19, fev. 2010. M. Behar; R. Fadanelli; I, Abril; R. Garcia-Molina; C. Denton; L. Nagamine; N. Arista. Energy Loss of Proton, Particle, and Electron Beams in Hafnium Dioxide Films. Physical Review. A, v. 80, 2009. R. Freire, S. Catunda, A. Luciano. Applications of Thermoresistive Sensors Using the Electric Equivalence Principle. IEEE Transactions on Instrumentation and Measurement, v. 58, p. 1823-1830, 2009. R. Gelamo, F.Rouxinol, C.Verissimo, A.Vaz, M.de Moraes, S.Moshkalev, Low-temperature gas and pressure sensor based on carbon nanotubes decorated with Ti nanoparticles. Chem.Phys.Lett., 482, 302, 2009. Contacts Jacobus W. Swart (coordenador) +55 19 3746-6001 jacobus.swart@cti.gov.br http://namitec.cti.gov.br

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livroinct2010  

Carlos Alberto Aragão de Carvalho Filho Presidente do CNPq 1

livroinct2010  

Carlos Alberto Aragão de Carvalho Filho Presidente do CNPq 1

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