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Le Journal De Physique Colloques最新文献

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Strained Si1-xGex/Si Dots and Wires Grown by Selective Epitaxy 选择性外延生长的应变Si1-xGex/Si点和线
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995503
L. Vescan, R. Loo, A. Souifi, C. Dieker, S. Wickenhauser
{"title":"Strained Si1-xGex/Si Dots and Wires Grown by Selective Epitaxy","authors":"L. Vescan, R. Loo, A. Souifi, C. Dieker, S. Wickenhauser","doi":"10.1051/JPHYSCOL:1995503","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995503","url":null,"abstract":"Selective epitaxial growth of Si 1-x Ge x was studied with the aim to fabricate quantum wires and dots. The selective deposition was performed by low pressure chemical vapor deposition with dichlorosilane and germane as precursors, at 0.1 Torr and 700°C in a radiation heated, cold wall, high vacuum, quartz reactor. Dislocation free strained dots and wires could be grown much thicker than the critical thickness for unpatterned area, because the critical thickness by formation of misfit dislocations increases when the window dimension is reduced. For x up to 20% it was found that for 10x10 μm 2 dots the critical thickness increases by more than 4 times. The tendency of facet formation was exploited to realize laterally confined multiple quantum well dots and wires with sizes down to 50 nm. Besides the emission from the (100) quantum well layers excitonic emissions from quantum well layers from flat {110} facets and from islands in the (100) and {311} facets were detected. All dots and wires luminesce stronly down to the lowest achieved dimension of 50 nm, the integral intensity exceeding that from the substrate.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74216914","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}
引用次数: 1
Remote PECVD : a Route to Controllable Plasma Deposition 远程PECVD:可控等离子体沉积的途径
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995568
S. Alexandrov
{"title":"Remote PECVD : a Route to Controllable Plasma Deposition","authors":"S. Alexandrov","doi":"10.1051/JPHYSCOL:1995568","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995568","url":null,"abstract":"Some aspects of RF remote plasma enhanced CVD including the main features of the technique, possibilities of overcoming disadvantages typical for conventional plasma processes, and possible directions to improve the remote plasma method are discussed.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74689525","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}
引用次数: 5
Development of TiN-Si3N4 Nano Composite Coatings for Wear Resistance Applications TiN-Si3N4纳米复合耐磨涂层的研制
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995599
A. G. Dias, J. Breda, P. Moretto, J. Ordelman
{"title":"Development of TiN-Si3N4 Nano Composite Coatings for Wear Resistance Applications","authors":"A. G. Dias, J. Breda, P. Moretto, J. Ordelman","doi":"10.1051/JPHYSCOL:1995599","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995599","url":null,"abstract":"The engineering of conventional TiN coatings to attain hardness of the order of ultrahard coatings (e.g. c-BN) by a controlled incorporation of silicon atoms in the titanium nitride lattice leading to the formation of a TiN-Si 3 N 4 composite material is discussed. An a-priori thermodynamic approach complemented by thermochemical equilibrium calculations was used to evaluate convenient precursors and processing parameters for the production of this novel coating material. The multiphase nature of preliminary test samples deposited by PACVD is confirmed by X-ray diffraction, IR spectroscopy and EPMA analysis. The films are made up of TiN nanocrystallites embedded in an amorphous Si 3 N 4 tissue with small amounts of free Si, as predicted by previous Ti-Si-N phase diagram calculations.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78848040","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}
引用次数: 6
Vapour Growth of Micro-Coiled Ceramic Fibers and their Properties 微卷曲陶瓷纤维的气相生长及其性能
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:19955125
S. Motojima, I. Hasegawa, H. Iwanaga
{"title":"Vapour Growth of Micro-Coiled Ceramic Fibers and their Properties","authors":"S. Motojima, I. Hasegawa, H. Iwanaga","doi":"10.1051/JPHYSCOL:19955125","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:19955125","url":null,"abstract":"Micro-coiled fibers of carbon, SiC, Si 3 N 4 , TiC, ZrC and HfC were prepared by a metal-impurity activated chemical vapor deposition or vapour phase metallizing of the coiled carbon fibers. The growth conditions, morphology, growth mechanism and some properties were examined. The double-coiled carbon fibers were prepared using acetylene as a carbon source and various powders or plates of transition metals, metal carbides, MoS 2 , Ti 2 O 3 , and Ni single crystal plate as a catalyst at 650-850°C. The triple-coiled SiC fibers were prepared using coked rice husks and/or SiO as a Si-source and Ni, Cr or Fe as a catalyst at 1400-1500°C. The double-coiled TiC fibers were prepared by the PC1 3 activated CVD process on a graphite substrate using a Pt+Si or Pd+Si mixed catalyst at 1050-1250°C.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78911439","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}
引用次数: 0
Morphology and Film Growth in CVD Reactions CVD反应的形态和膜生长
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995501
V. Hlavácek, J. Thiart, D. Orlicki
{"title":"Morphology and Film Growth in CVD Reactions","authors":"V. Hlavácek, J. Thiart, D. Orlicki","doi":"10.1051/JPHYSCOL:1995501","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995501","url":null,"abstract":"The paper reports on three major aspects of CVD reactor simulation: 1) Modeling of transport phenomena in conventional CVD and their effect on the film growth; 2) Modeling of plasma enhanced CVD and deposition of thin films; 3) Modeling of film growth and analysis of stability and morphology case studies. Case studies involve deposition of boron on W wire, deposition of Si-H and morphology development for a typical CVD reaction. Numerical methods of simulation are discussed in detail for each category mentioned above.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76862796","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}
引用次数: 6
Optical Properties of CVD-Deposited Dielectric Films for Microelectronic Devices 微电子器件用cvd沉积介质薄膜的光学特性
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:19955100
A. Sassella, A. Borghesi, S. Rojas, L. Zanotti
{"title":"Optical Properties of CVD-Deposited Dielectric Films for Microelectronic Devices","authors":"A. Sassella, A. Borghesi, S. Rojas, L. Zanotti","doi":"10.1051/JPHYSCOL:19955100","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:19955100","url":null,"abstract":"Optical characterization of dielectric films used in integrated circuit device manufacturing can give information on their optical behavior as well as on their structural properties and composition. The results obtained on several undoped and doped silicon oxides, silicon oxynitrides, and silicon nitrides usually employed for microelectronic applications both in the ultraviolet-visible and infrared spectral ranges are illustrated.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90947621","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}
引用次数: 7
Deposition and Properties of Thin PECVD Carbon Films After Rapid Thermal Annealing 快速热退火后PECVD薄碳膜的沉积与性能研究
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995573
G. Beshkov, D. Dimitrov, S. Georgiev, T. Dimitrova
{"title":"Deposition and Properties of Thin PECVD Carbon Films After Rapid Thermal Annealing","authors":"G. Beshkov, D. Dimitrov, S. Georgiev, T. Dimitrova","doi":"10.1051/JPHYSCOL:1995573","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995573","url":null,"abstract":"In this work the properties of PECVD-carbon films before and after Rapid Thermal Annealing (RTA) are presented. The thickness of the investigated films is in the range 50 - 6000A. The layers are annealed at 1400°C for different times of 1s to 3 min in vacuum 5 x 10 -5 Torr. Raman investigation has been performed before and after annealing.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84227051","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}
引用次数: 0
Kinetic Modeling of the Gas Phase Decomposition of Germane by Computational Chemistry Techniques 计算化学技术对日耳曼气相分解的动力学模拟
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995505
M. Hierlemann, H. Simka, K. Jensen, M. Utz
{"title":"Kinetic Modeling of the Gas Phase Decomposition of Germane by Computational Chemistry Techniques","authors":"M. Hierlemann, H. Simka, K. Jensen, M. Utz","doi":"10.1051/JPHYSCOL:1995505","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995505","url":null,"abstract":"Very limited experimental data are available on thermal decomposition of germane in the gas phase. Recent developments in theoretical quantum chemistry techniques such as ab initio Hartree-Fock and density functional methods have made accurate determination of molecular properties possible. Systematic development of a detailed gas-phase decomposition mechanism for germane using ab initio molecular orbital calculations is described in this work. A decomposition pathway for germane and higher germanes is proposed and the relevant reaction rates are calculated using transition state theory combined with unimolecular and chemical activation treatments. The decomposition model is implemented into a realistic thermal-fluid simulation.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82084574","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}
引用次数: 3
Modeling of Mass Transport and Gas Kinetics of the Reactive Sputtering Process 反应溅射过程的质量传递和气体动力学建模
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995502
S. Berg, Claes Nender
{"title":"Modeling of Mass Transport and Gas Kinetics of the Reactive Sputtering Process","authors":"S. Berg, Claes Nender","doi":"10.1051/JPHYSCOL:1995502","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995502","url":null,"abstract":"Modeling of reactive sputter deposition processes is a very important tool for fast and inventive process development. A short review with some new results is given for a set of previously presented reactive sputtering models that has been successfull in describing and predicting the processes. Examples are given for each case of reactive sputtering with one target and one reactive gas, reactive compound- and co-sputtering as well as reactive sputtering using two reactive gases. The importance of process control in order to control the inherent instabilities and composition, is emphasized.","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79865369","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}
引用次数: 5
Properties of Thin Epitaxial Aerosol MOCVD CeO2 Films Grown on (1102) Sapphire (1102)蓝宝石外延气溶胶MOCVD CeO2薄膜的性能
Le Journal De Physique Colloques Pub Date : 1995-06-01 DOI: 10.1051/JPHYSCOL:1995562
K. Fröhlich, J. Šouc, D. Machajdík, A. Kobzev, F. Weiss, J. Sénateur, K. Dahmen
{"title":"Properties of Thin Epitaxial Aerosol MOCVD CeO2 Films Grown on (1102) Sapphire","authors":"K. Fröhlich, J. Šouc, D. Machajdík, A. Kobzev, F. Weiss, J. Sénateur, K. Dahmen","doi":"10.1051/JPHYSCOL:1995562","DOIUrl":"https://doi.org/10.1051/JPHYSCOL:1995562","url":null,"abstract":"We have examined the properties of thin epitaxial CeO 2 films prepared by aerosol MOCVD. The films were deposited on (1102) sapphire at deposition temperatures between 500 °C and 900°C. The best properties were observed for the film grown at high deposition temperatures. The films have thickness ∼ 0.2 μm and the full width at half maximum of the rocking curve 0.3° - 0.4°. The minimal yield measured by backscattering spectrometry in the channeling mode was 5.5%, confirming high preferred orientation of the deposited films. The epitaxial character of the CeO 2 films was revealed by the measurement of the φ-scan. The aerosol MOCVD CeO 2 films were found to be suitable as a buffer layer for a preparation of superconducting high-T c films. YBa 2 Cu 3 O 1 superconducting films deposited on the CeO 2 /(1102) sapphire exhibit superconducting transition temperature T 0(R=0) = 86 K","PeriodicalId":17944,"journal":{"name":"Le Journal De Physique Colloques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76584274","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}
引用次数: 3
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