A. Djurišić, A. Rakić, R. Tmušić, E. Li, M. Majewski
{"title":"Optical constants of Hg/sub x/Cd/sub 1-x/Te alloys","authors":"A. Djurišić, A. Rakić, R. Tmušić, E. Li, M. Majewski","doi":"10.1109/ICMEL.2000.840565","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.840565","url":null,"abstract":"Optical constants of Hg/sub x/Cd/sub 1-x/Te alloys are modeled for the first time over the spectral range from 1.5 eV to 6.0 eV for all compositions 0/spl les/x/spl les/1. The employed model is the modified Adachi's model, which utilizes variable line broadening instead of the conventional Lorentzian one. The model takes into account transitions at critical points E/sub 0/, E/sub 0/+/spl Delta//sub 0/, E/sub 1/, E/sub 1/+/spl Delta//sub 1/, E/sub 0/', E/sub 2/(X), and E/sub 2/(/spl Sigma/), as well as excitonic effects at the lowest four critical points. Model parameters are determined using a global optimization routine, namely an acceptance-probability-controlled simulated annealing algorithm. Excellent agreement with the experimental data is obtained in the entire investigated energy and composition ranges.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115600972","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}
{"title":"Temperature monitoring of electronic circuits based on analytical thermal model","authors":"M. Janicki, A. Napieralski","doi":"10.1109/ICMEL.2000.838758","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.838758","url":null,"abstract":"This paper presents a method of integrated circuit temperature monitoring based on an analytical thermal model. First, a thermal model of a real power integrated circuit is created. Then, power dissipated in transistors is estimated from noisy temperature sensor measurements. The quality of estimate is enhanced owing to the use of the QR-RLS adaptive algorithm.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126180023","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}
{"title":"Rise-time effects in ggnMOSt under TLP stress","authors":"G. Boselli, A. Mouthaan, F. Kuper","doi":"10.1109/ICMEL.2000.840588","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.840588","url":null,"abstract":"In this paper the main mechanisms that lead the turn on of the parasitic bipolar transistor of a grounded gate nMOS transistor (ggnMOS) under TLP stress have been analyzed in detail in the sub-nanoseconds range by means of a mixed-mode simulator. We showed that the breakdown voltage of the ggnMOS measured in static conditions would underestimate the maximum voltage across the protection structure obtained by TLP stress, depending on the rise-time of the applied pulse.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130867287","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}
O. Borkovskaya, N. Dmitruk, R. Konakova, S. Mamykin, V.V. Milenin, E. Soloviev, M. Tagaev, D.I. Voitsikhovskiy
{"title":"Effect of /spl gamma/-irradiation on the electrophysical parameters of metal/GaAs barrier structures with textured interfaces","authors":"O. Borkovskaya, N. Dmitruk, R. Konakova, S. Mamykin, V.V. Milenin, E. Soloviev, M. Tagaev, D.I. Voitsikhovskiy","doi":"10.1109/ICMEL.2000.840591","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.840591","url":null,"abstract":"We investigated (i) morphology of the GaAs surface with a quasigrating-type microrelief and (ii) current flow mechanism in the Au/GaAs barrier structures formed on the above textured surface. Both Atomic Force Microscopy (AFM) and measurements of electrical (I-V and C-V) characteristics were used. We have found both semiconductor and interface parameters, as well as studied how they depend on /sup 60/Co /spl gamma/-irradiation in the 10/sup 3//spl divide/10/sup 7/ Gy dose range. The parameters measured were shown to be tolerant to such irradiation doses.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132463639","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}
{"title":"Peculiarities of Si films etching in CF/sub 4/ parent gas","authors":"Y. Grigoryev, A. Gorobchuk","doi":"10.1109/ICMEL.2000.840576","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.840576","url":null,"abstract":"The peculiarities of heat-mass transfer in a radial flow reactor are discussed. Flow structure, temperature of gas mixture and reactive species concentration distribution were studied as a functions of gas flow rate and wafer temperature. The simulations of the reactor incorporated the modeling of the hydrodynamical and molecular transport processes in the etching chamber. The authors considered two-, three- and four-component chemical kinetics. The electron density distribution corresponded to a \"diffusion-dominated\" discharge. In ther analysis of the calculation data, it was shown that the significant radial gradients of gas temperature appeared and reduced the etching uniformity of the wafer. The distribution of reactive species concentration and etching rate depends on the choice of chemical kinetic model. To choose the kinetic model of the plasma reactor it is necessary to carry out a comparison of calculation data with experimental results.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130952719","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}
{"title":"Transmission line modelling by ladder networks","authors":"G. Ferri","doi":"10.1109/ICMEL.2000.838800","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.838800","url":null,"abstract":"The modelling of a transmission line has been considered by the use of passive networks. From the electrical point of view, a ladder network (a repetition of infinite elementary cells of equal type) is proved to be a first-order approximation of the line. Two different approaches have been followed: the first one utilizes the determined voltages in the network, the second one the recursive equations of the line. Among the ladder networks, the \"half-T\" type, one of the most commonly used, is proved to be a good model for the line simulation only in the case of loading impedance equal to the \"characteristic\" one.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131598750","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}
{"title":"MOS structure threshold voltage model by rigorously considering quantum mechanical effect","authors":"Yutao Ma, Zhijian Li, Litian Liu, Z. Yu","doi":"10.1109/ICMEL.2000.840561","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.840561","url":null,"abstract":"Quantum Mechanical Effects (QME) on deep-submicron MOSFET characteristics are analyzed from first-principle theory. The single subband occupation approximation often used in earlier works is proved to be invalid, based on rigorous consideration of subband structure and carrier distribution. The concepts of surface layer quantum effective density of states (SQEDOS) and the surface layer classical effective density of states (SCEDOS) are proposed through which a Vth shift model due to QME is derived. The model reveals the physical nature of the influence of QME on the Vth shift and gives consistent results with experiments.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129256306","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}
{"title":"Diagnostics of large-area solar cells by local irradiation","authors":"J. Radil, V. Benda","doi":"10.1109/ICMEL.2000.840556","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.840556","url":null,"abstract":"This paper presents a method for determining of local defects, which bring down efficiency and reliability of solar cells, using local irradiation of the surface of large-area solar cells. The method can give information about position and extent of local defects. Photovoltaic voltage generated by local irradiation is decreased in the area of local defects and so local defects can be determined.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131094769","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}
{"title":"A MATLAB toolbox for analysis of continuous-time filters","authors":"M. Lutovac, D. Tosic, B. Evans","doi":"10.1109/ICMEL.2000.838797","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.838797","url":null,"abstract":"We present an original framework for advanced continuous-time filter design. Within this framework we have written MATLAB toolboxes for drawing filter circuit schematics, computation and visualization of the filter design parameters and the design space, and continuous-time filter design and analysis. The toolboxes are easy to use, mouse driven, and user friendly to an unexperienced filter designer or practicing engineer.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115750187","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}
R. Konakova, V. V. Milenin, D. I. Voitsikhovskiy, E. Soloviev, M. Tagaev, G. Beketov, G. N. Kashin, N. S. Boltovets, N. Goncharuk, V. E. Chaika, V. A. Krivutsa
{"title":"Ohmic contacts for microwave diodes","authors":"R. Konakova, V. V. Milenin, D. I. Voitsikhovskiy, E. Soloviev, M. Tagaev, G. Beketov, G. N. Kashin, N. S. Boltovets, N. Goncharuk, V. E. Chaika, V. A. Krivutsa","doi":"10.1109/ICMEL.2000.838736","DOIUrl":"https://doi.org/10.1109/ICMEL.2000.838736","url":null,"abstract":"Au-TiN-n/sup +/-Si and Au-Ti-Pd/sub 2/Si-n/sup +/-Si ohmic contacts were fabricated using thermal and magnetron evaporation onto n/sup +/-silicon substrates with various concentrations of free electrons. Diode test structures with such contacts were fabricated using photolithography. The effect of thermal annealing and /sup 60/Co /spl gamma/-irradiation on the I-V curves and stability of both contacts and test structures was investigated. The data obtained were compared to the results of mathematical simulation of both tight contacts and those with a SiO/sub 2/ interlayer. The calculations and experiments demonstrated that such tight low-resistance contacts with Schottky barrier based on palladium silicides are tolerant to short-term thermal annealing up to 600/spl deg/C and to /spl gamma/-irradiation in the 10/sup 2/ to 3/spl times/10/sup 5/ Gy total dose range.","PeriodicalId":215956,"journal":{"name":"2000 22nd International Conference on Microelectronics. Proceedings (Cat. No.00TH8400)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124312442","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}