Microelectronic Processes
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Sensores e biossensores baseados em transistores de efeito de campo utilizando filmes automontados nanoestruturados / Sensors and biosensors based on field-effect transistors using nanostructured self-assembled films
Separative extended gate field-effect transistor (SEGFET) device is an alternative to the conventional ion-sensitive field-effect transistor (ISFET). The great advantage of SEGFET refers to its easy processing, i.e., it is limited under only manipulation of the gate electrode, avoiding the conventional microelectronic processes. In this way, ion sensors and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/11/2011
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2. Fabrication and characterization of tellurite and germanate waveguides for optoelectronics applications. / Produção e caracterização de guias de onda de telureto e germanato para aplicações em optoeletrônica.
The objective of this work is the production and characterization of GeO2-PbO and TeO2-ZnO waveguides. The waveguides were produced using thin films and glasses by means of different procedures. The films were produced using the RF magnetron sputtering method and characterized by a variety of techniques. In particular, scanning electron microscopy was essent
Publicado em: 2010
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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. Context modeling using ontologies. / Modelagem de contexto utilizando ontologias.
Advances in microelectronic processes have allowed smaller devices with more computation and communication power. Pervasive environment contains different devices like electronic sensor, actuators and mobile devices which interact with the person naturally after the context is known. The device and information diversity introduce an interoperability problem.
Publicado em: 2008
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5. Estudos da corrosão anisotrópica do silício frente soluções de KOH e sais metálicos. / Monocristalin silicon anisotropic etching study in KOH solution with metallic salts.
In the past few years it has been a huge evolution in industrial area of MEMS, and this one is characterized by the development of the processes of microelectronic to reduce cost and to integrate different systems that become very trustful in different applications. It is being done a work in silicon anisotropic etching in Potassium hydroxide (KOH) added wit
Publicado em: 2008
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6. 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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7. 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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8. Sensores eletroquímicos para detecção de íons e medida de pH baseados em filmes de silício poroso. / Electrochemical sensors to ions detection and pH measure based on porous silicon films.
O presente trabalho foi realizado com o objetivo de contribuir para o desenvolvimento tecnológico de sensores eletroquímicos utilizados na detecção de íons, especificamente, de íons de hidrogênio (H+). Na primeira parte do trabalho é descrito e discutido o estado da arte de sensores eletroquímicos de H+, principalmente de dispositivos sensíveis a �
Publicado em: 2007
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9. Evidence for adverse reproductive outcomes among women microelectronic assembly workers.
Microelectronics assembly entails complex processes where several potentially fetotoxic chemical compounds are used extensively. This study was undertaken to assess the potential adverse reproductive outcomes among former women workers in a microelectronics assembly plant in New Mexico with respect to a comparable population from the same geographical region