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Investigation of SiOxNy Thin Films with Photoluminescence, Raman, and Capacitance-Voltage MeasurementsChou, Shu-Ting 16 June 2003 (has links)
ABSTRACT
As MOSFET getting smaller, its silicon dioxide reaches physical limit. To continue its insulation and reasonable interface defects density, now, SiOxNy is the replace material to fill the transition term between SiO2 to high-k material. SiOxNy is made from silicon dioxide and silicon nitride in different scale. Due to the uncompleted of bonding, the device¡¦s reliability is dependent on defects. The discussion about defects will help us to change the growth conditions in process and avoid to produce these defects.
We use PL and Raman spectrum to study the defects in SiOxNy and compare them under different process conditions especially on the change of defects.
PL result on 6.2 nm film have a peak at 390 nm, and 40 nm film have peak at 535 nm. This mean that under these two process conditions the defect correspond to 3.18 eV is . The defect correspond to 2.37 eV is .
In this thesis, we report formulations of how to calculate the parameters of MOS structure, using SiON/p-Si MOS structure as calculated sample.
The carrier concentration were calculated and compared with the Hall results. The flat band voltage and threshold voltage were calculated and compared with measured C-V curves.
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Sion, Sous-le-Scex (VS) : ein spätantik-frühmittelalterlicher Bestattungsplatz : Gräber und Bauten /Antonini, Alessandra. January 2002 (has links)
Dissertation--Philosophische Fakultät--Universität Zürich, 2000. / Mention parallèle de titre ou de responsabilité : Résultats des recherches sur le site funéraire du Haut Moyen-Âge de Sion, Sous-le-Scex. Bibliogr. p. 255-266.
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Fluorinated Oxynitride Films Prepared by Temperature-Difference Deposition Method Using the Aqueous Solution of Hydrofluorosilicic Acid and Ammonium HydroxideShieh, Wu-Hung 11 July 2002 (has links)
The advantages of LPD method, low temperature process, low cost, conformal growth (good step coverage), selective growth and inexpensive deposition system make the method of LPD versatile in IC fabrication. LPD-SiOF is a potential method to replace traditional method of SiOF deposition. But, some drawbacks, including slightly low dielectric constant and poor performance of J-E relationship, still exist in LPD-SiOF process. In order to improve these shortcomings, with incorporating NH4OH into the LPD solution in this experiment, the SiOF:N film with high quality and low dielectric constant can be grown on Si by the TD-LPD method.
In this study, the growth rate can be controlled well within 90~550 Å/h corresponding to the NH4OH concentration range of 0.1~0.8 M at the temperature range of 23~40 ¢XC. As TD-LPD-SiOF:N film deposited with 0.8 M NH4OH incorporation, the refractive index for can be kept at a constant 1.431 and the P-etch rate can be kept between 18.3 and 19.2 Å/s during the deposition temperature changes.
The best experimental condition is found that incorporating 0.8 M NH4OH will get good results. If the concentration of 0.8 M is higher or lower than 0.8 M, the electrical characteristic will become poor.
A model for TD-LPD-SiOF:N deposition mechanism is proposed. From the analysis of SIMS depth profile, the deposited film can be suggested that it is a combination of N-less LPD-SiOF film and N-rich accumulated interfacial layer. The properties of N-rich accumulated layer at the interface show the least effective oxide charges and lowest leakage current density.
As the thickness of TD-LPD-SiOF:N film is 800 Å, the film has the best electrical characteristic. When the thickness is below or above 800 Å, all the properties become poor. TD-LPD-SiOF:N film deposited at 40 ¢XC with 0.8 M NH4OH incorporation with a thickness of 800 Å has the best physical, chemical, electrical properties. The F content for deposited film can reach 9.8 atom %. The dielectric constant can drop to about 3.07.
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Garin of Sion: (* c. 1065 – † 28 Aug 1150)Luther, Johannes 28 June 2024 (has links)
Möglicherweise in Pont-à-Mousson in Lothringen geboren, zog Garin von Sion um 1085 nach Molesme und beteiligte sich 1093/94 an der Gründung von Notre-Dame d’Aulps, wo er Anfang der 1110er Jahre Abt wurde. Unter dem Einfluss von Bernhard von Clairvaux wurde seine Abtei 1136 in die Zisterzienserbewegung überführt. In hohem Alter wurde er Bischof von Sion. Am 25. Mai 1148 nahm er an der Weihe der Kathedrale Saint-Maurice durch Papst Eugen III. teil. G. pflegte bis zu seinem Tod eine enge Verbindung zu seinem Kloster in Aulps. Er starb auf der Reise dorthin. G. wurde nicht heiliggesprochen, doch sein Grab in Aulps ist seit der zweiten Hälfte des 12. Jahrhunderts ein Pilgerziel. / Perhaps born in Pont-à-Mousson in Lorraine, G. entered Molesme around 1085 and participated in the foundation of Notre-Dame d’Aulps in 1093/94, where he became abbot in the early 1110s. Influenced by Bernard of Clairvaux, his abbey was transferred into the Cistercian movement in 1136. He became Bishop of Sion at a high age. On 25 May 1148, he attended Pope Eugene III’s consecration of the cathedral of Saint-Maurice. G. maintained close ties with his monastery in Aulps until his death. He died while travelling there. G. was not canonized, but his grave in Aulps has been a destination for pilgrims since the second half of the 12th c.
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Synthesis and characterization of magnetron sputtered thin films of the Ti-Al-Si-N(O) systemGodinho, Vanda v 18 February 2011 (has links)
The aim of this Thesis was on one side to contribute to a better understanding of the phases formed in the TiAlSiN(O) system and the influence of impurities on their properties. On the other side it was also aimed in the Thesis to individually study the phases forming the nanocomposite.
In each chapter the individual conclusions from that particular chapter are presented, a summary of the most relevant conclusions and achievements is listed below.
¡à Ti1-xAlxN(O) coatings
The optical properties of Ti1-xAlxN(O) coatings were investigated. By changing the Al content in the coatings the properties change from the metallic character of TiN to dielectric character of AlN allowing to obtain spectrally selective coatings. For high Al content the films show low infrared reflectance and high emittance resulting in low equilibrium temperature, characteristics suitable for example for satellite temperature control. While the low emittance and high absorptance of low Al content are adequate for solar absorbers.
The thermal stability of the low Al content coatings was investigated and the coatings are stable up to 400 ¨¬C without much change in the optical properties.
¡à SiyNz(O) coatings
The silicon oxynitride coatings proved to be themselves interesting for their optical properties, specially the refractive index. The control of the microstructure was the key factor to control the optical properties of the coatings. Low energetic conditions in pure nitrogen atmosphere lead to the formation of closed porosity (nanovoids). The Raman results proved the encapsulation of nitrogen in the pores.
Changing the N2 fraction in the gas mixture during deposition allows (at low power) to produce coatings with similar composition and mechanical properties presenting different refractive index by the introduction of the closed porosity.
The closed porosity in the coatings is stable in N2 and vacuum up to 900 ¨¬C.
Changing the target-substrate distance allows to produce coatings with different size of nanovoids.
The possibility to extend the deposition of porous (close porosity) coatings to other systems is demonstrated. Porous silicon coatings were deposited by this method.
¡à nc-Ti1-xAlxN/a-SiyNz(O) coatings
It was found from the XRD, SAED, EELS and XPS results, of coatings deposited under low energetic conditions, that the coatings are composed of a nanocrystalline cubic (Ti,Al)N phase embedded in an amorphous silicon oxynitride phase.
The presence of oxygen impurities was identified particularly in non biased samples and estimated to be around 10 at% as the upper limit in these particular samples. Oxygen seems to be outside the nitride nanocrystallites, and mainly bond to silicon, forming amorphous silicon oxynitride phases and confirmed to occupy preferentially nitrogen positions (confirmed by HAADF and EFTEM) at the column boundaries.
The application of substrate bias and substrate heating during deposition proved to be very efficient in reducing the oxygen incorporation in the coatings originating also denser coatings with improved mechanical properties.
The different energetic conditions (either kinetic or thermal) at which the coatings were exposed during growth and the consequently obtained structures express the need for growth models were the transitions between zones can be achieved by a combination of substrate bias and substrate temperature.
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The Electric Characteristics of Thin Oxynitride Films Prepared by Liquid Phase Deposition and Quality Improvement by Biasing during the GrowthLin, Shuo-Yen 04 July 2000 (has links)
ASTRACT
Using an aqueous solution of ammonia hydroxide aqua, hydrosilicofluoric acid and boric acid, an oxynitride film can be deposited. The deposition rate and refractive index increase with the mole concentration of ammonia hydroxide aqua. However, the refractive index decreases as the mole concentration of ammonia hydroxide aqua becomes too high. The leakage current density as a function of mole concentration of ammonia hydroxide aqua was studied. The best experimental condition is found that incorporating ammonia hydroxide aqua of 0.8M will get good results.
The SIMS depth profiles shows nitrogen and hydrogen concentration accumulate at SiON/Si interface. A deposition model is proposed and LPD-SiON can be suggested that it is a combination of N-less LPD-SiON film and N-rich accumulated layer at the interface. The best characteristics of LPD-SiON film are in the range of 110Å-thick to 210Å-thick. When the thickness scales down to 110Å, all the properties become poor.
Photo-LPD-SiON process is proposed as a reference of Photo-LPD-SiO2. By mercury lamp illumination, the performances of J-E relationship and C-V characteristic become better. Nitrogen atomic concentration can increase by photo-enhancement checked by analysis of SIMS depth profile and FTIR spectrum.
A novel technique of LPD process with applying a bias during the growth is proposed and it is called Bias-LPD-SiON. A model of Bias-LPD-SiON deposition mechanism is also proposed. On the negative bias substrate, high nitrogen atomic concentration can be attained. The J-E characteristic at positive bias of 0.1V and negative bias in a range of 0.1V to 1V are better than traditional LPD-SiON film. Then, the deposition rate of positive bias and negative bias LPD-SiON films at 0.1V can reach 32Å/min and 26Å/min, respectively. Therefore, high quality and high deposition rate can be prepared by Bias-LPD-SiON.
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Do exílio à missão: congregações religiosas femininas francesas no Brasil - século XIX / From exile to the mission: french female religious congregations in Brazil: 19th centuryColombo, Maria Alzira da Cruz 11 June 2018 (has links)
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Previous issue date: 2018-06-11 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The purpose of this article is to analyze the link between the political situation in France
during the 3rd Republic (1870-1914) and the progressive marginalization that the
pedagogical religious congregations have suffered and that eventually led to their
emigration to Brazil, from the 19th century on. My intention is to study not only the
historical context, but also the sociological, cultural and political background in France
in that period, that drove France to secularization, as a result of the Jules Ferry Laws in
1880. It’s also my intention to highlight the dissolution of religious schools in France
and, on the other hand, the possibility of emigration, which consequently brought
educational and cultural evolution to the feminine youth in Brazil during the Imperial
and Republican periods. Finally, I’ve focused my research in the particular case of the
congregation Our Lady of Sion as a paradigmatic example of the sister’s congregations
that left France during that period and founded colleges in many cities in the southeast
region of Brazil. This analysis shows the pioneering spirit of women from those
important missionary congregations / Este trabalho tem por objeto o estudo da correlação entre a situação política da França
da Terceira República (1870-1914) e a marginalização das congregações religiosas de
ensino, como sendo um fator fundamental para a emigração das religiosas francesas
para o Brasil, a partir dos meados do século XIX. Trata-se da investigação do contexto
sócio-cultural e político desse período na França, da análise das diversas escolhas das
religiosas francesas frente à proibição da atividade pedagógica, como decorrência da
aplicação das leis de laicização, a partir das Leis Jules Ferry de 1880. Destaca-se então,
num segundo nível de análise, a investigação das escolhas entre o fechamento das
escolas, da secularização, ou volta à vida civil, ou então da possibilidade do exílio. A
questão do exílio foi salientada, na medida em que, essa opção foi responsável pelas
conseqüências mais significativas sobre evolução educacional e cultural da juventude
feminina no final do Império e início da República no Brasil. Em um terceiro e último
nível de análise, o trabalho concentra-se num estudo da Congregação Notre Dame
deSion, como sendo representativa dessas congregações religiosas femininas francesas
que para cá vieram e em particular na trajetória histórica do Colégio Sion, tanto na
França, quanto em várias cidades do sudeste brasileiro, a partir de 1888. Essa análise
evidencia o pioneirismo dessas congregações missionárias e o papel pioneiro das
mulheres de vida consagrada
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Synthesis and characterization of magnetron sputtered thin films of the Ti-Al-Si-N(O) systemGodinho, Vanda 18 February 2011 (has links)
The aim of this Thesis was on one side to contribute to a better understanding of the phases formed in the TiAlSiN(O) system and the influence of impurities on their properties. On the other side it was also aimed in the Thesis to individually study the phases forming the nanocomposite. <p><p>In each chapter the individual conclusions from that particular chapter are presented, a summary of the most relevant conclusions and achievements is listed below. <p><p><p>¡à\ / Doctorat en Sciences de l'ingénieur / info:eu-repo/semantics/nonPublished
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A busca do saber linguistico nas primeiras escolas femininas católicas da cidade de São PauloSapaterra, Ana Paula 18 December 2007 (has links)
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Previous issue date: 2007-12-18 / Secretaria da Educação do Estado de São Paulo / The end of the nineteenth century brought many advances to São Paulo society, to
keep up with the progress the elite started to demand more refined education for their
daughters, so that they could no longer behave following the Portuguese colonial tradition
in fashion at the time- because it didn t combine with more urbanized society.
Thus, women should not only deal with the house and employees, she had to be
nice at meetings and therefore it has become necessary to learn how to read, write, talk about
music, painting and learn the rules of etiquette and everything that fits a lady in society. It
was necessary a new profile for women suitable for this new society, without compromising
their soul, moral and religion.
The model of education followed by these young women of society was French,
because it represented a good education without vocational, modern or feminists ideas.
This study is about the Portuguese language program taught at Colégio Nossa
Senhora de Sion between 1944 and 1947 in order to analyze the way Linguistics was taught
in that women s institution.
Besides the analysis of Portuguese material found at Sion, a historical, cultural and
social investigation from the end of 19th century to the 1st half of the 20th century was made,
aiming at understanding a woman s behavior, her role in the society and the reason for São
Paulo elite s choice of catholic institutions for their daughter s education, future ladies of
society.
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The História das Idéias Lingüistícas (the History of Linguistic Ideas) was chosen
as theoretical basis in order to support this dissertation, in such way that Linguistics and
History are interconnected in the course of this study / O final do século XIX trouxe muitos avanços para a sociedade paulista e,
por acompanhar esses progressos, a elite passou a exigir uma educação mais requintada para
suas filhas, pois não mais podiam elas se comportar de acordo com a tradição colonial
portuguesa em moda até então , isso não combinava mais com a sociedade urbanizada.
Assim, não caberia mais à mulher somente a função de dirigir a casa e os
empregados, era preciso que fosse agradável nas reuniões e para isso tornava-se necessário
aprender a ler, escrever, conversar, conhecer regras de etiqueta, música, pintura e tudo o que
coubesse a uma dama da sociedade. Era preciso moldar um novo perfil de mulher adequado a
essa nova sociedade, com uma educação voltada para o social sem que se comprometesse a
alma, a moral e a religiosidade.
O francês foi o modelo escolhido para a educação das jovens burguesas,
pois representava garantia de boa educação sem idéias profissionalizantes, modernas ou
feministas.
Ao delimitarmos o corpus, selecionamos os programas dos exames das
provas de Língua Portuguesa do Colégio Nossa Senhora de Sion, do Curso Pré-Normal, no
período que se estende de 1944 a 1947, a fim de verificar como os saberes lingüísticos eram
transmitidos nesta Instituição Confessional feminina.
Além da análise do material de português encontrado no Sion, fez-se um
levantamento histórico, cultural e social do final do século XIX, até a primeira metade do
século XX, com o objetivo de entender como se portava a mulher nesse período, que função
tinha na sociedade, e por que a escolha de Instituições Católicas pela elite paulista para o
ensino de suas filhas, futuras damas da sociedade.
Optou-se pela escolha da História das Idéias Lingüísticas (Auroux, Fávero,
Orlandi) como vertente teórica para subsidiar esta dissertação, proporcionando entendimento
em relação ao vernáculo, de modo que lingüística e história estão interligadas no decorrer
deste trabalho
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Modelos lineares generalizados e modelos de dispersão aplicados à modelagem de sinistros agrícolas / Generalized linear models and model dispersion applied to modelling agricultural claimsSousa, Keliny Martins de Melo 12 February 2010 (has links)
O presente trabalho tem por objetivo utilizar a abordagem dos modelos lineares generalizados e os modelos de dispersão no contexto do seguro agrícola. Os modelos lineares generalizados (MLG\'s) constituem uma extensão dos modelos lineares de regressão múltipla introduzida por Nelder e Wedderburn (1972), que inclui modelos cuja variável resposta pertence à família exponencial de distribuições. O MLG é formado por um componente aleatório, que possui distribuição pertencente à família exponencial, um componente sistemático, conectados por uma função de ligação. Jorgensen (1997) estende a utilização dos MLG para uma classe mais ampla de modelos probabilísticos, denominados modelos de dispersão. A estimação dos parâmetros foi baseada no método da máxima verossimilhança, e também, em função da amostra ser relativamente pequena, optou-se pelo método de bootstrap não-paramétrico. As duas abordagens foram aplicadas a dois conjuntos de dados de sinistros de 15 municípios do estado do Rio Grande do Sul. Os resultados mostraram que a precipitação acumulada tem influência na ocorrência de sinistros. Entretanto, na modelagem do montante do sinistro não foi encontrada nenhuma variável significativa. Usando o método de bootstrap, foi encontrada influência das variáveis precipitação acumulada e a temperatura média no numero de sinistros / The main objective of this work is to use the generalized linear models and dispersion models in the agricultural insurance context. The Generalized Linear Model (GLM) are an extension of the multiple regression linear models presented by Nelder e Wedderburn (1972). This approach include situations in which the response variable can be included in exponencial the family. The GLM is composed of a randomized component, a sistematic component and the link functions. JÁrgensen (1997) extend the application of the GLM for a more general class of probability models, called dispersion models. Both approaches were applied in two insurance datasets for 15 citys in Rio Grande do Sul. The parameters estimation was based in the maximum likelihood method, in addition, because of the relatively small sample, the non-parametric Bootstrap method was used. This study show, using GLM, that only the accumulated rainfall was statistically significant . However, any of the covariates was significant when modelling the amount of claims. In the analysis using Bootstrap method the accumulated rainfall and average temperature were significant when modelling the number of insurance clains.
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