Résultat de la recherche
13 recherche sur le tag
'النمذجة' 
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Interroger des sources externesAnalyse et classification des maladies cardiaques et respiratoires en utilisant les operateurs et les systemes d’ordre fractionnaire. / Imene Assadi ép Bensouici
Titre : Analyse et classification des maladies cardiaques et respiratoires en utilisant les operateurs et les systemes d’ordre fractionnaire. Type de document : texte imprimé Auteurs : Imene Assadi ép Bensouici, Auteur ; Abdelfatah Charef, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 136 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles. Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Appareil FOT Arythmies cardiaques Classification Complexe QRS Impédance
respiratoire Maladies respiratoires Modélisation Signal ECG Système d'ordre fractionnaire Cardiac Arrhythmias ECG signal FOT device Fractional order system Modeling QRS Complex Respiratory diseases Respiratory impedance اشارة تخطیط القلب ECG أمراض الجھاز التنفسي أمراض القلب التصنیف جھاز FOT نظام
ذات درجة ناطقة النمذجة المركب QRS ممانعة التنفسIndex. décimale : 621 Electronique Résumé : The work realized in this thesis presents processing and analysis techniques of the electrocardiographic signal (ECG) as well as the respiratory signal for the classification and discrimination of cardiac and respiratory diseases based on fractional order operators and systems. First, the frequency content of the complex QRS of the ECG modeling by a fractional order linear system was presented. After that, classification and discrimination
methods of cardiac arrhythmias have been developed using the proposed complex QRS frequency content fractional order model’s parameters as pertinent parameters. A particular attention is paid to normal beats, premature ectopic (PVC) and right and left branch blocks (RBBB and LBBB). Some classification experiments have been presented using the MIT / BIH database. Then, the respiratory impedance modeling and the respiratory diseases
classification using fractional order operators and systems have been also presented. The respiratory impedance model parameters have been used by a classification algorithm for the healthy subjects, asthmatic and chronic obstructive pulmonary disease (COPD) patient’s discrimination. The classification method was validated using data collected by the forced oscillation technique (FOT) at Ghent University Hospital, Belgium. The obtained results for the frequency content of the QRS and the respiratory impedance modeling and the cardiac and
respiratory diseases discrimination were very satisfactory.
Diplôme : Doctorat En ligne : ../theses/electronique/ASS7200.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10763 Analyse et classification des maladies cardiaques et respiratoires en utilisant les operateurs et les systemes d’ordre fractionnaire. [texte imprimé] / Imene Assadi ép Bensouici, Auteur ; Abdelfatah Charef, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 136 f. ; 30 cm.
2 copies imprimées disponibles.
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Appareil FOT Arythmies cardiaques Classification Complexe QRS Impédance
respiratoire Maladies respiratoires Modélisation Signal ECG Système d'ordre fractionnaire Cardiac Arrhythmias ECG signal FOT device Fractional order system Modeling QRS Complex Respiratory diseases Respiratory impedance اشارة تخطیط القلب ECG أمراض الجھاز التنفسي أمراض القلب التصنیف جھاز FOT نظام
ذات درجة ناطقة النمذجة المركب QRS ممانعة التنفسIndex. décimale : 621 Electronique Résumé : The work realized in this thesis presents processing and analysis techniques of the electrocardiographic signal (ECG) as well as the respiratory signal for the classification and discrimination of cardiac and respiratory diseases based on fractional order operators and systems. First, the frequency content of the complex QRS of the ECG modeling by a fractional order linear system was presented. After that, classification and discrimination
methods of cardiac arrhythmias have been developed using the proposed complex QRS frequency content fractional order model’s parameters as pertinent parameters. A particular attention is paid to normal beats, premature ectopic (PVC) and right and left branch blocks (RBBB and LBBB). Some classification experiments have been presented using the MIT / BIH database. Then, the respiratory impedance modeling and the respiratory diseases
classification using fractional order operators and systems have been also presented. The respiratory impedance model parameters have been used by a classification algorithm for the healthy subjects, asthmatic and chronic obstructive pulmonary disease (COPD) patient’s discrimination. The classification method was validated using data collected by the forced oscillation technique (FOT) at Ghent University Hospital, Belgium. The obtained results for the frequency content of the QRS and the respiratory impedance modeling and the cardiac and
respiratory diseases discrimination were very satisfactory.
Diplôme : Doctorat En ligne : ../theses/electronique/ASS7200.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10763 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ASS/7200 ASS/7200 Thèse Bibliothèque principale Thèses Disponible
Titre : Apport des systèmes d’information géographique dans l’étude du foncier agricole : Cas de la région D’oued Zenati Nord Est Algérien Type de document : texte imprimé Auteurs : Latifa Boulahia, Auteur ; Djamel Raham, Directeur de thèse ; Carlo Prévil, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 283 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Aménagement du TerritoireTags : Développement agricole et rural mutations foncier agricole modélisation systèmes d’information géographiques (SIG) Agricultural and rural development changes agricultural land modeling geographical information systems (GIS) التنمية الزراعية و الريفية التغيرات العقار النمذجة نظم المعلومات الجغرافية Index. décimale : 711 (Aménagement du territoire) Résumé : This study is intended as a contribution to domestic research on the rural world in Algeria, which is marginalized and comes in second position compared to the urban. Despite the efforts made since independence to the present day, there is still a great deal of deficiency in finding solutions. What programs are being used and where we have come in terms of agricultural and rural development through the land gateway is the main focus of this research.
This work deals with a fact of a fundamental question related to Algerian land whose question over time could not be conducted in a linear and homogeneous way. The multiple mutations and upheavals experienced by space following the triple pre-colonial, colonial and postcolonial legacy have made land use difficult in all its dimensions and facets. It constitutes a scientific identification that can shed light on the notion of agricultural land in Algeria through the case study of the Oued Zénati region. The latter will be treated in connection with new computer technologies, to achieve quality cartographic modeling with the use of geographical information systems
(GIS).
Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/BOU7291.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10906 Apport des systèmes d’information géographique dans l’étude du foncier agricole : Cas de la région D’oued Zenati Nord Est Algérien [texte imprimé] / Latifa Boulahia, Auteur ; Djamel Raham, Directeur de thèse ; Carlo Prévil, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 283 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Aménagement du TerritoireTags : Développement agricole et rural mutations foncier agricole modélisation systèmes d’information géographiques (SIG) Agricultural and rural development changes agricultural land modeling geographical information systems (GIS) التنمية الزراعية و الريفية التغيرات العقار النمذجة نظم المعلومات الجغرافية Index. décimale : 711 (Aménagement du territoire) Résumé : This study is intended as a contribution to domestic research on the rural world in Algeria, which is marginalized and comes in second position compared to the urban. Despite the efforts made since independence to the present day, there is still a great deal of deficiency in finding solutions. What programs are being used and where we have come in terms of agricultural and rural development through the land gateway is the main focus of this research.
This work deals with a fact of a fundamental question related to Algerian land whose question over time could not be conducted in a linear and homogeneous way. The multiple mutations and upheavals experienced by space following the triple pre-colonial, colonial and postcolonial legacy have made land use difficult in all its dimensions and facets. It constitutes a scientific identification that can shed light on the notion of agricultural land in Algeria through the case study of the Oued Zénati region. The latter will be treated in connection with new computer technologies, to achieve quality cartographic modeling with the use of geographical information systems
(GIS).
Diplôme : Doctorat en sciences En ligne : ../theses/amenagement/BOU7291.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10906 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/7291 BOU/7291 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution au développement d’une méthode temporelle pour la modélisation des structures hyperfréquences. Type de document : texte imprimé Auteurs : Rostom Khalef, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse Mention d'édition : 24/11/2019 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 137 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Electronique: Télécommunications méthodes sans maillage méthode CN-RPIM condition CFL méthode FDTD inconditionnellement stable méthode RPIM la méthode RBF modélisation meshless methods CN-RPIM method CFL condition FDTD method unconditionally stable RPIM method RBF method modeling طرق شبكية طريقةCN-RPIM شرط الاستقرارCFL طريقة FDTD ثبات غير مشروط طريقة RPIMِ طريقة RBF النمذجة Index. décimale : 621 Electronique Résumé :
Numerical simulation has become a central tool in the modeling of many microwave structures that sometimes suffer from discontinuities, which are difficult to model by conventional techniques, as required by powerful design and modeling methods. In addition, because of the increase in frequencies, it has become necessary to predict temporal responses to instantly evaluate the performance of these structures over broad frequency bands.
Due to the restrictions imposed on traditional numerical methods due to its dependence on meshes, meshless methods have become an indispensable scientific tool in electromagnetic modeling because they have freed the difficulties of the classical methods discretization grid. The approximation of the Maxwell equations on the one hand and they are based essentially on the basic functions according to their mathematical formulations on the other hand, which distinguishes them from low computation costs compared with other conventional techniques. However, to obtain convergence and obtain accurate results, the meshless methods suffer from a Courant-Friedrichs-Lewy (CFL) stability problem that limits the time step must be satisfied in practical simulations. Consequently, the computation time can be prohibitive for the fine electromagnetic modeling which requires their integration with the unconditionally stable implicit schemes. In this context, on the one hand, many algorithms have been proposed to solve the
Maxwell differential equations in the time domain for the simulation of some microwave structures which are: the meshless method based on the basis radial functions (RBF) and meshless radial point interpolation (RPIM) method. On the other hand, presentation of a new unconditionally stable two-dimensional radial point interpolation (RPIM) meshless method based on the Crank-Nicolson (CN) scheme. The implicit scheme of CN in the proposed algorithm is
applied to only one of Maxwell's equations. This leads to solving the time-domain second-order vector wave equation. Therefore a single electromagnetic field is explicitly updated at each iteration. The CFL requirement in the proposed CN-RPIM wave equation method does not limit the time step due to its implicit formulation. To value the proposed CN-RPIM method, numerical examples are used to validate and demonstrate efficiency and accuracy.
The numerical results are compared with those obtained by the explicit RPIM method and the FDTD method.
Note de contenu : Liste des Publications.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/KHA7592.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11428 Contribution au développement d’une méthode temporelle pour la modélisation des structures hyperfréquences. [texte imprimé] / Rostom Khalef, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse . - 24/11/2019 . - جامعة الإخوة منتوري قسنطينة, 2019 . - 137 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Electronique: Télécommunications méthodes sans maillage méthode CN-RPIM condition CFL méthode FDTD inconditionnellement stable méthode RPIM la méthode RBF modélisation meshless methods CN-RPIM method CFL condition FDTD method unconditionally stable RPIM method RBF method modeling طرق شبكية طريقةCN-RPIM شرط الاستقرارCFL طريقة FDTD ثبات غير مشروط طريقة RPIMِ طريقة RBF النمذجة Index. décimale : 621 Electronique Résumé :
Numerical simulation has become a central tool in the modeling of many microwave structures that sometimes suffer from discontinuities, which are difficult to model by conventional techniques, as required by powerful design and modeling methods. In addition, because of the increase in frequencies, it has become necessary to predict temporal responses to instantly evaluate the performance of these structures over broad frequency bands.
Due to the restrictions imposed on traditional numerical methods due to its dependence on meshes, meshless methods have become an indispensable scientific tool in electromagnetic modeling because they have freed the difficulties of the classical methods discretization grid. The approximation of the Maxwell equations on the one hand and they are based essentially on the basic functions according to their mathematical formulations on the other hand, which distinguishes them from low computation costs compared with other conventional techniques. However, to obtain convergence and obtain accurate results, the meshless methods suffer from a Courant-Friedrichs-Lewy (CFL) stability problem that limits the time step must be satisfied in practical simulations. Consequently, the computation time can be prohibitive for the fine electromagnetic modeling which requires their integration with the unconditionally stable implicit schemes. In this context, on the one hand, many algorithms have been proposed to solve the
Maxwell differential equations in the time domain for the simulation of some microwave structures which are: the meshless method based on the basis radial functions (RBF) and meshless radial point interpolation (RPIM) method. On the other hand, presentation of a new unconditionally stable two-dimensional radial point interpolation (RPIM) meshless method based on the Crank-Nicolson (CN) scheme. The implicit scheme of CN in the proposed algorithm is
applied to only one of Maxwell's equations. This leads to solving the time-domain second-order vector wave equation. Therefore a single electromagnetic field is explicitly updated at each iteration. The CFL requirement in the proposed CN-RPIM wave equation method does not limit the time step due to its implicit formulation. To value the proposed CN-RPIM method, numerical examples are used to validate and demonstrate efficiency and accuracy.
The numerical results are compared with those obtained by the explicit RPIM method and the FDTD method.
Note de contenu : Liste des Publications.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/KHA7592.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11428 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité KHA75992 KHA75992 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à l’élaboration d’un modèle electromagnétique de supports de transmission non-uniformes Type de document : texte imprimé Auteurs : Larbi Benkhaoua, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 96 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : équations des télégraphistes lignes de transmissions non-uniformes méthodes d’interpolation de point méthodes sans maillage modélisation Telegrapher’s Equations Nonuniform Transmission Lines Point
Interpolation Methods Meshless Methods modeling معادلات خطوط النقل خطوط النقل الكهربائية الغير موحدة طرق الحساب بدون شبكة النمذجةIndex. décimale : 621 Electronique Résumé : With the development of telecommunications and the need for miniaturizing microwave circuits and components, the uniform transmission lines were replaced by non uniform transmission lines (LTNUs) in many applications. With the presence of discontinuities uneasy to model by traditional methods, these lines require powerful technique of design and modeling, especially for arbitrary shapes. In addition, due to the increase in the operation frequencies, it became necessary to predict the transient responses to directly estimate the performances of the microwave circuits over ultra wide frequency bands.
On the other hand, the Meshless methods form a generic group of scientific computing
schemes which was developed since the years 1970s to eliminate the drawbacks of a fixed discretization grid for the approximation of the problem equations.
These methods have the advantages of arbitrary nodal distribution and conformal modeling of R.L.C.G parameters of NUTLs which require less computing costs than the traditional numerical methods.
In this context we implemented the MATLAB codes for the analysis and the simulation
of arbitrary non-uniform transmission lines in the time domain by three Meshless methods :
the polynomial point interpolation method (PIM), the meshless method based on radial
basis functions (RBF-MLM), and the radial point interpolation method (RPIM).
To illustrate the superiority of these methods, such as the irregular discretiszation and the fast convergence rate, results comparisons for two distinct samples were held between the PIM, the RBF-MLM, the RPIM, the FDTD method, and the wavelet expansion method.
These tests allow us to conclude that the RPIM converges quickly and provides the best
compromise between the accuracy and the computing time.Diplôme : Doctorat En ligne : ../theses/electronique/BEN6874.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10190 Contribution à l’élaboration d’un modèle electromagnétique de supports de transmission non-uniformes [texte imprimé] / Larbi Benkhaoua, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2016 . - 96 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : équations des télégraphistes lignes de transmissions non-uniformes méthodes d’interpolation de point méthodes sans maillage modélisation Telegrapher’s Equations Nonuniform Transmission Lines Point
Interpolation Methods Meshless Methods modeling معادلات خطوط النقل خطوط النقل الكهربائية الغير موحدة طرق الحساب بدون شبكة النمذجةIndex. décimale : 621 Electronique Résumé : With the development of telecommunications and the need for miniaturizing microwave circuits and components, the uniform transmission lines were replaced by non uniform transmission lines (LTNUs) in many applications. With the presence of discontinuities uneasy to model by traditional methods, these lines require powerful technique of design and modeling, especially for arbitrary shapes. In addition, due to the increase in the operation frequencies, it became necessary to predict the transient responses to directly estimate the performances of the microwave circuits over ultra wide frequency bands.
On the other hand, the Meshless methods form a generic group of scientific computing
schemes which was developed since the years 1970s to eliminate the drawbacks of a fixed discretization grid for the approximation of the problem equations.
These methods have the advantages of arbitrary nodal distribution and conformal modeling of R.L.C.G parameters of NUTLs which require less computing costs than the traditional numerical methods.
In this context we implemented the MATLAB codes for the analysis and the simulation
of arbitrary non-uniform transmission lines in the time domain by three Meshless methods :
the polynomial point interpolation method (PIM), the meshless method based on radial
basis functions (RBF-MLM), and the radial point interpolation method (RPIM).
To illustrate the superiority of these methods, such as the irregular discretiszation and the fast convergence rate, results comparisons for two distinct samples were held between the PIM, the RBF-MLM, the RPIM, the FDTD method, and the wavelet expansion method.
These tests allow us to conclude that the RPIM converges quickly and provides the best
compromise between the accuracy and the computing time.Diplôme : Doctorat En ligne : ../theses/electronique/BEN6874.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10190 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BEN/6874 BEN/6874 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à la modélisation et à l’optimisation des effets d’auto- échauffement dans les TBHs Si/SiGe. Type de document : texte imprimé Auteurs : Nousra Kherief, Auteur ; Saida Latreche, Auteur Mention d'édition : 31/10/2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Importance : 128 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Electronique :Micro-Nanoélectronique et Photonique Modélisation SILVACO-Tcad Transistor Bipolaire à Hétérojonction modèle DDM modèle de bilan énergétique isotherme EB le modèle de bilan énergétique non-isotherme NEB Auto- échauffement Modeling Heterojunction Bipolar Transistor DDM model Energy balance model EB Non-isothermal Energy Balance model NEB Self-heating النمذجة المقحل ثنائي القطب ذو الوصلة غير متجانسة نموذج DDMنموذج توازن الطاقة متساوي
الحرارة EBنموذج توازن الطاقة غير متساوي الحرارة التسخين الذاتيIndex. décimale : 621 Electronique Résumé :
The subject of this thesis is the 2D numerical modeling of an SiGe HBT (Heterojunction Bipolar Transistor) using the SILVACO-TCAD software. A simulation of the technological process was first adapted and carried out, and then we were interested in the electrical simulation. For this, we considered three electrical models: the DDM model (Drift Diffusion Model), the isothermal Energy Balance model (EB) and the Non-isothermal Energy Balance model (NEB). Due to the carrier’s overshoot and the non-isothermal effects present in the considered HBT, the NEB model was retained. In addition, the HBT SiGe produced in advanced technologies uses the Superficial and Deep Trenches Isolation (STI and DTI) as isolation between the different devices existing on the same chip. We have studied their impacts on the self-heating phenomenon and the static and dynamic performance of TBH SiGe. The results obtained showed that the self-heating phenomenon is accentuated in this case. In order to improve the electrical and thermal performance of the device, we were interested in analyzing other technological variants.Thus,we start by observing the beneficial effect of the ‘scaling’and the type of Si or SOI (Silicon On Insulate) substrate on the performances of the SiGe heterojunction bipolar transistor. Their effect is very significant on the improvement of electrical performances but an increase of the lattice temperature of the device is also observed. A technological solution to reduce this self-heating phenomenon is ""multi-emitter"" or multi-finger technology. An analysis of this solution was carried out and optimized and its benefit proven.
Diplôme : Doctorat En ligne : ../theses/electronique/KHE7838.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11670 Contribution à la modélisation et à l’optimisation des effets d’auto- échauffement dans les TBHs Si/SiGe. [texte imprimé] / Nousra Kherief, Auteur ; Saida Latreche, Auteur . - 31/10/2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 128 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Electronique :Micro-Nanoélectronique et Photonique Modélisation SILVACO-Tcad Transistor Bipolaire à Hétérojonction modèle DDM modèle de bilan énergétique isotherme EB le modèle de bilan énergétique non-isotherme NEB Auto- échauffement Modeling Heterojunction Bipolar Transistor DDM model Energy balance model EB Non-isothermal Energy Balance model NEB Self-heating النمذجة المقحل ثنائي القطب ذو الوصلة غير متجانسة نموذج DDMنموذج توازن الطاقة متساوي
الحرارة EBنموذج توازن الطاقة غير متساوي الحرارة التسخين الذاتيIndex. décimale : 621 Electronique Résumé :
The subject of this thesis is the 2D numerical modeling of an SiGe HBT (Heterojunction Bipolar Transistor) using the SILVACO-TCAD software. A simulation of the technological process was first adapted and carried out, and then we were interested in the electrical simulation. For this, we considered three electrical models: the DDM model (Drift Diffusion Model), the isothermal Energy Balance model (EB) and the Non-isothermal Energy Balance model (NEB). Due to the carrier’s overshoot and the non-isothermal effects present in the considered HBT, the NEB model was retained. In addition, the HBT SiGe produced in advanced technologies uses the Superficial and Deep Trenches Isolation (STI and DTI) as isolation between the different devices existing on the same chip. We have studied their impacts on the self-heating phenomenon and the static and dynamic performance of TBH SiGe. The results obtained showed that the self-heating phenomenon is accentuated in this case. In order to improve the electrical and thermal performance of the device, we were interested in analyzing other technological variants.Thus,we start by observing the beneficial effect of the ‘scaling’and the type of Si or SOI (Silicon On Insulate) substrate on the performances of the SiGe heterojunction bipolar transistor. Their effect is very significant on the improvement of electrical performances but an increase of the lattice temperature of the device is also observed. A technological solution to reduce this self-heating phenomenon is ""multi-emitter"" or multi-finger technology. An analysis of this solution was carried out and optimized and its benefit proven.
Diplôme : Doctorat En ligne : ../theses/electronique/KHE7838.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11670 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité KHE/7838 KHE/7838 Thèse Bibliothèque principale Thèses Disponible
Permalink
PermalinkPermalinkPermalinkPermalinkPermalinkPermalink
Permalink
