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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Design of 2.4 GHz and 5 GHz RFIC front-end components in CMOS and SiGe HBT technologies

Kodkani, Rahul M. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains x, 113 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 108-113).
52

Operation of silicon-germanium heterojunction bipolar transistors on

Bellini, Marco. January 2009 (has links)
Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Cressler, John D.; Committee Member: Papapolymerou, John; Committee Member: Ralph, Stephen; Committee Member: Shen, Shyh-Chiang; Committee Member: Zhou, Hao Min.
53

Stress engineering for polarization control in silicon-on-insulator waveguides and its applications in novel passive polarization splitters/filters /

Ye, Winnie Ning. January 1900 (has links)
Thesis (Ph.D.) - Carleton University, 2007. / Includes bibliographical references (p. 194-201). Also available in electronic format on the Internet.
54

Complementary metal oxide semiconductor compatible silicon-on-insulator optical rib waveguides with local oxidation of silicon isolation /

Rowe, Lynda, January 1900 (has links)
Thesis (M.App.Sc.) - Carleton University, 2007. / Includes bibliographical references (p. 82-92). Also available in electronic format on the Internet.
55

Free-carrier effects in polycrystalline silicon-on-insulator photonic devices /

Ogah, Oshoriamhe F. January 2010 (has links)
Typescript. Includes bibliographical references.
56

Advanced CMP processes for special substrates and for device manufacturing in MEMS applications /

Kulawski, Martin. January 1900 (has links) (PDF)
Thesis (doctoral)--VTT Micronova, 2006. / Includes bibliographical references. Also available on the World Wide Web.
57

Estudo de diodos PIN multicamadas atuando como célula fotovoltaica /

Silva, Fábio Alex da January 2020 (has links)
Orientador: Maria Glória Caño de Andrade / Resumo: Este trabalho é baseado no estudo do comportamento de um diodo PIN de multicamadas utilizado como célula solar. Esse estudo é desenvolvido por meio de simulações em ambiente virtual, validada a partir de dados experimentais, e tem como foco principal o comportamento da geração de corrente pelo dispositivo, tanto na interação entre o dispositivo e uma determinada faixa do espectro luminoso, como na influência que as alterações nas dimensões dessa célula solar podem trazer na tensão gerada. O diodo PIN proposto encontra-se em uma lâmina SOI (Silicon On Insulator) com uma potencial aplicação destinada para a alimentação de circuitos que necessitam de ultrabaixa potência (ULP – Ultra Low Power), tais como sensores de campo para monitoramento e circuitos subcutâneos para monitoramento médico. É construído por uma camada dupla com diferentes semicondutores (silício e germânio) e, através de alterações em sua estrutura (mudança dos materiais e das dimensões), será verificado o comportamento dos principais parâmetros de uma célula solar, tais como fator de forma (FF), corrente fotogerada, tensão de circuito aberto, corrente de curto-circuito, tensão e corrente de trabalho e potência gerada pelo dispositivo. Adicionalmente, é também analisado o comportamento de penetração e absorção do espectro luminoso na célula solar e a existência de alterações nos parâmetros medidos quando há alteração na posição das camadas de semicondutores, com a finalidade de demonstrar que o incremento de uma... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: This work is based on the study of multilayer PIN diode used as a solar cell. This study was developed through simulations in a virtual environment with the main focus of the generation current by the device so much in the interaction between the device and a range of the light spectrum as well as in the influence the changes in the dimensions of the solar cell may bring in the voltage generated. It is composed of a double layer with different semiconductors (silicon and germanium), and though changes in its structure (materials and dimensions change), it will be verified the behavior of main parameters of a solar cell, such as Fill Factor (FF), photogenerated current, open-circuit voltage, short circuit current, work voltage and work current and the generated power will by the device. Additionally, it was also verified the behavior of the penetration and absorption of the light spectrum in the solar cell, and the existence of changes in the measured parameters when there is a change of position in the semiconductor layers, to demonstrate that the increase of a germanium layer may bring to the device concerning entirely silicon device. The results obtained indicate that there was an increase in the photogeneration when the germanium layer is positioned above the silicon layer. This way, this work demonstrates that small changes in the construction and the thickness of the lateral PIN diode used as a solar cell provide an increase in efficiency of more than 136% when comparing... (Complete abstract click electronic access below) / Mestre
58

COMPLEMENTARY ORTHOGONAL STACKED METAL OXIDE SEMICONDUCTOR: A NOVEL NANOSCALE COMPLEMENTRAY METAL OXIDE SEMICONDUCTOR ARCHTECTURE

Al-Ahmadi, Ahmad Aziz 12 September 2006 (has links)
No description available.
59

Silicon-germanium BiCMOS and silicon-on-insulator CMOS analog circuits for extreme environment applications

England, Troy Daniel 22 May 2014 (has links)
Extreme environments pose major obstacles for electronics in the form of extremely wide temperature ranges and hazardous radiation. The most common mitigation procedures involve extensive shielding and temperature control or complete displacement from the environment with high costs in weight, power, volume, and performance. There has been a shift away from these solutions and towards distributed, in-environment electronic systems. However, for this methodology to be viable, the requirements of heavy radiation shielding and temperature control have to be lessened or eliminated. This work gained new understanding of the best practices in analog circuit design for extreme environments. Major accomplishments included the over-temperature -180 C to +120 C and radiation validation of the SiGe Remote Electronics Unit, a first of its kind, 16 channel, sensor interface for unshielded operation in the Lunar environment, the design of two wide-temperature (-180 C to +120 C), total-ionizing-dose hardened, wireline transceivers for the Lunar environment, the low-frequency-noise characterization of a second-generation BiCMOS process from 300 K down to 90 K, the explanation of the physical mechanisms behind the single-event transient response of cascode structures in a 45 nm, SOI, radio-frequency, CMOS technology, the analysis of the single-event transient response of differential structures in a 32 nm, SOI, RF, CMOS technology, and the prediction of scaling trends of single-event effects in SOI CMOS technologies.
60

24 GHz integrated differential antennas in digital bulk silicon /

Shamim, Atif, January 1900 (has links)
Thesis (M. App. Sc.)--Carleton University, 2004. / Includes bibliographical references (p. 110-113). Also available in electronic format on the Internet.

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