Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558817
A. Ciuciumis, I. Cernica
The paper presents indium tin oxide and cerium dioxide thin films obtained by sol-gel method and deposited on the different wood substrates. Films deposition was performed by immersion of the substrates into coating solution and flow-coating process. Investigation of the surface chemistry and morphology of the wood substrates before and after deposition were obtained by means of atomic force microscopy and optical microscopy. The sol-gel deposit on the wood substrates lowered the rates of water and water vapour sorption (absorption and/or adsorption)
{"title":"Synthesis and characterization of indium tin oxide and cerium dioxide thin films by sol-gel method","authors":"A. Ciuciumis, I. Cernica","doi":"10.1109/SMICND.2005.1558817","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558817","url":null,"abstract":"The paper presents indium tin oxide and cerium dioxide thin films obtained by sol-gel method and deposited on the different wood substrates. Films deposition was performed by immersion of the substrates into coating solution and flow-coating process. Investigation of the surface chemistry and morphology of the wood substrates before and after deposition were obtained by means of atomic force microscopy and optical microscopy. The sol-gel deposit on the wood substrates lowered the rates of water and water vapour sorption (absorption and/or adsorption)","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"220 1","pages":"425-428 vol. 2"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89127374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558796
G. Brezeanu
As this year we celebrate a century since the discovery of Silicon Carbide, a short history of semiconductor material is presented in the first part of the paper. Design guidelines, based on simple analytical expressions, for ideal structures of high power SiC Schottky barrier diodes (SBD), are also included
{"title":"Silicon carbide (SiC): a short history. an analytical approach for SiC power device design","authors":"G. Brezeanu","doi":"10.1109/SMICND.2005.1558796","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558796","url":null,"abstract":"As this year we celebrate a century since the discovery of Silicon Carbide, a short history of semiconductor material is presented in the first part of the paper. Design guidelines, based on simple analytical expressions, for ideal structures of high power SiC Schottky barrier diodes (SBD), are also included","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"2013 1","pages":"345-348 vol. 2"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86485387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558752
C. Ravariu, A. Rusu, O. Nedelcu, F. Ravariu, F. Babarada, L. Dobrescu
The Silicon On Insulator technology has reached a new stage through the nanodevices way: Silicon On Nothing, where "Nothing" means a vacuum cavity underneath an ultrathin Si film. A mobile and thin semiconductor membrane results, by enlarging the cavity. In the empty space can be handled a bioliquid using a diffuser/nozzle micropump. The mobile Si membrane is bending by the substrate biasing and plays a double role: as actuator and detector. This paper presents a MEMS, based on a new work principle than traditional ISFETs, which detects the ionic analytes from a bioliquid and has its own actuator for the microfluidic handle.
{"title":"A MEMS dedicated to the bio-components detection, inspired from the SON architecture","authors":"C. Ravariu, A. Rusu, O. Nedelcu, F. Ravariu, F. Babarada, L. Dobrescu","doi":"10.1109/SMICND.2005.1558752","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558752","url":null,"abstract":"The Silicon On Insulator technology has reached a new stage through the nanodevices way: Silicon On Nothing, where \"Nothing\" means a vacuum cavity underneath an ultrathin Si film. A mobile and thin semiconductor membrane results, by enlarging the cavity. In the empty space can be handled a bioliquid using a diffuser/nozzle micropump. The mobile Si membrane is bending by the substrate biasing and plays a double role: as actuator and detector. This paper presents a MEMS, based on a new work principle than traditional ISFETs, which detects the ionic analytes from a bioliquid and has its own actuator for the microfluidic handle.","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"73 1","pages":"219-222 vol. 1"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83978349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558722
R. Marcelli, S. Catoni, L. Frenguelli
In this paper a new approach to obtain low losses coplanar waveguide (CPW) lines is described. A photolithographic process is performed by using SU-S thick negative photo-resist on low resistivity silicon to obtain CPW lines elevated with respect to the substrate to get the advantages from transmission line structures which are almost on-the-air.
{"title":"Low loss coplanar lines on low resistivity silicon SU-S thick negative photoresist","authors":"R. Marcelli, S. Catoni, L. Frenguelli","doi":"10.1109/SMICND.2005.1558722","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558722","url":null,"abstract":"In this paper a new approach to obtain low losses coplanar waveguide (CPW) lines is described. A photolithographic process is performed by using SU-S thick negative photo-resist on low resistivity silicon to obtain CPW lines elevated with respect to the substrate to get the advantages from transmission line structures which are almost on-the-air.","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"1 1","pages":"107-110 vol. 1"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90624654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558737
R. Rebigan, D. Esinenco, M. Kusko
In this paper we describe the preliminary experiments for a polymeric (bio)chemical sensor-integrated on silicon substrate, based on the far-field interferometric method. The basic structure of the sensor consists of a sandwich-waveguide polymeric structure. Several experimental studies have been performed in order to optimize the technological flow. We also have performed design studies in order to optimize the proposed structure.
{"title":"Polymeric waveguides with bio(chemical) sensing applications-design and preliminary experimental results","authors":"R. Rebigan, D. Esinenco, M. Kusko","doi":"10.1109/SMICND.2005.1558737","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558737","url":null,"abstract":"In this paper we describe the preliminary experiments for a polymeric (bio)chemical sensor-integrated on silicon substrate, based on the far-field interferometric method. The basic structure of the sensor consists of a sandwich-waveguide polymeric structure. Several experimental studies have been performed in order to optimize the technological flow. We also have performed design studies in order to optimize the proposed structure.","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"111 1","pages":"165-168 vol. 1"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77872863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558827
E. Franti, D. Tufis, S. Goschin, M. Dascalu, P. Milea, G. Stefan, T. Balan, C. Slav, R. Demco
This paper refers to the implementation of a virtual environment for the robot interfaces testing. This software environment is very useful because, comparing to the experiments with real robots, it allow the testing and evaluation of different types of interfaces and different working environments with diverse configurations. A very important facility of this interactive software environment is the fact that the designers of the robots sensors and interfaces are able to work in parallel to design test, optimize and realize different control devices for the robot
{"title":"Virtual environment for robots interfaces design and testing","authors":"E. Franti, D. Tufis, S. Goschin, M. Dascalu, P. Milea, G. Stefan, T. Balan, C. Slav, R. Demco","doi":"10.1109/SMICND.2005.1558827","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558827","url":null,"abstract":"This paper refers to the implementation of a virtual environment for the robot interfaces testing. This software environment is very useful because, comparing to the experiments with real robots, it allow the testing and evaluation of different types of interfaces and different working environments with diverse configurations. A very important facility of this interactive software environment is the fact that the designers of the robots sensors and interfaces are able to work in parallel to design test, optimize and realize different control devices for the robot","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"24 1","pages":"463-466 vol. 2"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85359531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558756
M. Simion, I. Kleps, T. Ignat, E. Condac, F. Craciunoiu, A. Angelescu, M. Miu, A. Bragaru, M. Costache, L. Savu
In this paper, we focus on the design, the experimental technology and characterization of a silicon microchip for rapid testing of DNA samples. For the identification it was used a polymerase chain-reaction PCR technique with biomolecules attached. In the last year, there have been a number of recent advances in the field of miniaturized reaction and separation systems, including the construction of fully integrated "lab-on-chip" systems. This paper describes a micro biochip realized on silicon wafers, using standard microfabrication techniques. The biochip is designed to be complex and versatile; it contains a microreactor for the biological material and on the backside of the chip there are heating resistances that would assure the temperature cycles for PCR reactions. The biologic material in the test reactors can be optically monitored because the reactor is covered with transparent glass. The reactor surface was functionalized in order to obtain reactive sites for binding DNA-oligonucleotides for "in vitro" DNA identification.
{"title":"Bioanalytical silicon micro-devices for DNA","authors":"M. Simion, I. Kleps, T. Ignat, E. Condac, F. Craciunoiu, A. Angelescu, M. Miu, A. Bragaru, M. Costache, L. Savu","doi":"10.1109/SMICND.2005.1558756","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558756","url":null,"abstract":"In this paper, we focus on the design, the experimental technology and characterization of a silicon microchip for rapid testing of DNA samples. For the identification it was used a polymerase chain-reaction PCR technique with biomolecules attached. In the last year, there have been a number of recent advances in the field of miniaturized reaction and separation systems, including the construction of fully integrated \"lab-on-chip\" systems. This paper describes a micro biochip realized on silicon wafers, using standard microfabrication techniques. The biochip is designed to be complex and versatile; it contains a microreactor for the biological material and on the backside of the chip there are heating resistances that would assure the temperature cycles for PCR reactions. The biologic material in the test reactors can be optically monitored because the reactor is covered with transparent glass. The reactor surface was functionalized in order to obtain reactive sites for binding DNA-oligonucleotides for \"in vitro\" DNA identification.","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"116 1","pages":"235-238 vol. 1"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87700344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558781
V. Kantser, Z. Dashevsky, D. Meglei, I. Bejenari
The electric field effect (EFE) in a coaxial cylindrical capacitor configuration was used to study the modification of transport and thermoelectric properties of semiconductor PbTe and Bi2Te3 glass coated microwires. The first results of experimental measurements of wire transport properties under EFE show the increasing or decreasing of the average Seebeck coefficient in dependence of gate potential polarity in accordance with the theoretical analysis
{"title":"Cylindrical thermoelectric microwires under radial electric field effect","authors":"V. Kantser, Z. Dashevsky, D. Meglei, I. Bejenari","doi":"10.1109/SMICND.2005.1558781","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558781","url":null,"abstract":"The electric field effect (EFE) in a coaxial cylindrical capacitor configuration was used to study the modification of transport and thermoelectric properties of semiconductor PbTe and Bi2Te3 glass coated microwires. The first results of experimental measurements of wire transport properties under EFE show the increasing or decreasing of the average Seebeck coefficient in dependence of gate potential polarity in accordance with the theoretical analysis","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"40 1","pages":"289-292 vol. 2"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88557232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558713
G. Zegrya, N. Bazhenov, K. Mynbaev, S. Pokutnyi
Advantages of semiconductor quantum dots (QDs) for study and diagnostics of biological systems are discussed A new method for amino acid diagnostics using semiconductor QDs is proposed. Interaction of isolated QDs with charged amino acids is studied in detail. It is shown that such interaction results in a shift of the QD luminescence spectra by several dozens of meV. This effect provides new possibilities for identification of biological objects using QDs.
{"title":"Application of semiconductor quantum dots for a study of biological systems","authors":"G. Zegrya, N. Bazhenov, K. Mynbaev, S. Pokutnyi","doi":"10.1109/SMICND.2005.1558713","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558713","url":null,"abstract":"Advantages of semiconductor quantum dots (QDs) for study and diagnostics of biological systems are discussed A new method for amino acid diagnostics using semiconductor QDs is proposed. Interaction of isolated QDs with charged amino acids is studied in detail. It is shown that such interaction results in a shift of the QD luminescence spectra by several dozens of meV. This effect provides new possibilities for identification of biological objects using QDs.","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"7 1","pages":"73-76 vol. 1"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87895306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2005-12-19DOI: 10.1109/SMICND.2005.1558799
G. Brezeanu, M. Badila, M. Brezeanu, F. Udrea, C. Boianceanu, I. Enache, F. Draghici, A. Visioreanu
A classical implementation of the field plate technique is the oxide ramp termination. This paper presents improvements of the efficiency of this termination for SiC Schottky barrier diodes, obtained by using high-k dielectrics. The effect of the relative dielectrics permittivity and ramp parameters are investigated for punch-through and non punch-through devices. Optimal structure termination parameters were identified
{"title":"Breakdown performances improvements of SiC diodes using high-k dielectrics","authors":"G. Brezeanu, M. Badila, M. Brezeanu, F. Udrea, C. Boianceanu, I. Enache, F. Draghici, A. Visioreanu","doi":"10.1109/SMICND.2005.1558799","DOIUrl":"https://doi.org/10.1109/SMICND.2005.1558799","url":null,"abstract":"A classical implementation of the field plate technique is the oxide ramp termination. This paper presents improvements of the efficiency of this termination for SiC Schottky barrier diodes, obtained by using high-k dielectrics. The effect of the relative dielectrics permittivity and ramp parameters are investigated for punch-through and non punch-through devices. Optimal structure termination parameters were identified","PeriodicalId":40779,"journal":{"name":"Teatro e Storia","volume":"17 1","pages":"357-360 vol. 2"},"PeriodicalIF":0.1,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88266522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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