Microelectronic Process
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Clock mesh optimization / Otimização de malhas de relógio
Clock meshes are a suitable clock network architecture for reliably distributing the clock signal under process and environmental variations. This property becomes very important in the deep sub-micron technology where variations play a main role. The clock mesh reliability is due to redundant paths connecting clock buffers to clock sinks, so that variations
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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2. Sistema para corrosão anisotropica profunda de sensores microeletromecanicos / Anisotropic etching system for micro electrical mechanical sensor
Integrated Silicon Sensors and Microelectromechanical Systems (MEMSs) have been developing drived mainly by the micro and nanoelectronic industry s continuous growth. As a result, MEMSs have been spreading out very quickly into commercial products. In fact, MEMSs have undertaken room in automotive market where pressure sensors as well as accelerometers have
Publicado em: 2009
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3. JustificaÃÃo de investimentos em tecnologias avanÃadas de manufatura: um framework para a avaliaÃÃo da opÃÃo de esperar, sob a Ãtica das opÃÃes reais
Evaluating capital investment projects for the adoption of advanced manufacturing technologies (AMT) is a critical task faced by manufacturing managers. Due to the normally high levels of risk and uncertainty involved, the traditional investment appraisal techniques are often insufficient and must be complemented by sophisticated evaluation methods. Since th
Publicado em: 2009
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4. Silício poroso funcionalizado com moléculas de azul de metileno para aplicações em sensores químicos. / Porous silicon functionalized with methylene blue molecules for chemical sensors applications.
O objetivo do presente trabalho é o desenvolvimento de nanocompósitos de silício poroso/azul de metileno (PS/MB) utilizando-se substratos de silício macroporoso e mesoporoso para sua aplicação no monitoramento de gases orgânicos. Foram estudados processos de formação de PS/MB usando PS macroporoso e controlando o pH da solução. Os resultados obtid
Publicado em: 2009
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5. Integrated passive inductors for radio frequency applications / Indutores integrados passivos para aplicações em radio frequencia
This work aims the design and implementation of integrated passive inductors based on CMOS and BiCMOS processes. The inductors are essential devices in radio frequency applications and are used in many RF circuits such as amplifiers and oscillators. The inductors performance is mainly limited by metal and substrate losses. Although various methods of improve
Publicado em: 2008
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6. Caracterização de filmes finos de óxido de silício depositados em um reator HD-PECVD a partir de TEOS a ultra baixa temperatura. / Characterization of silicon dioxide thin films deposited in a HD-PECVD reactor from TEOS at ultra low temperature.
This work reports on the results obtained from high-density plasma enhanced chemical vapor deposited silicon oxide films at ultra low temperature, i.e. 30°C, using TEOS vapor as the silicon source oxidized with assistance of argon. The objectives of this work are: first, understand the phenomena that conducts the chemical vapor deposition in high density re
Publicado em: 2007
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7. Fabricação e caracterização de Guia de Onda Polimerica a base de PMMA modificado por plasma de CHF3 / Polymeric optical waveguides fabricated by plasma fluorination process
Polymeric optical devices have been studied in communication and interconnection optics due to the intrinsic versatility of polymers molecular structure, that allows advantageous refractive index modeling for core and cladding, and also to their easy fabrication process or patterning capability. PMMA, polymethylmetacrylate, shows the best optical properties
Publicado em: 2007
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8. Construção e caracterização de fotodetetores metal-semicondutor-metal (MSM). / Construction and characterization of metal-semiconductor-metal (MSM) photodetectors.
The goal of this work was the fabrication of Metal-Semiconductor-Metal (MSM) photodetectors with the following characteristics: dark current of about 1 nA, responsivity of about 0.1 A/W and dark/photocurrent ratio of at least 10. These values ensure that the photodetectors have enough sensitivity to be used in integrated optic sensors. All materials used in
Publicado em: 2006
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9. Antimicrobial Resistance and Bacterial Identification Utilizing a Microelectronic Chip Array
Species-specific bacterial identification of clinical specimens is often limited to a few species due to the difficulty of performing multiplex reactions. In addition, discrimination of amplicons is time-consuming and laborious, consisting of gel electrophoresis, probe hybridization, or sequencing technology. In order to simplify the process of bacterial ide
American Society for Microbiology.
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10. Electric field directed nucleic acid hybridization on microchips.
Selection and adjustment of proper physical parameters enables rapid DNA transport, site selective concentration, and accelerated hybridization reactions to be carried out on active microelectronic arrays. These physical parameters include DC current, voltage, solution conductivity and buffer species. Generally, at any given current and voltage level, the tr