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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2007.tde-27072007-175354
Document
Author
Full name
Fernanda de Sá Teixeira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2007
Supervisor
Committee
Mansano, Ronaldo Domingues (President)
Added, Nemitala
Salvadori, Maria Cecilia Barbosa da Silveira
Title in Portuguese
Anisotropia de resistividade elétrica em filmes finos nanoestruturados.
Keywords in Portuguese
Deposição por plasma
Litografia
Materiais nanoestruturados
Microfabricação
Microscopia de força atômica
Microscopia eletrônica de varredura
Nanofabricação
Nanolitografia
Novos materiais
Plasma (microeletrônica)
Resistividade elétrica
Abstract in Portuguese
O objetivo principal deste trabalho foi desenvolver um dispositivo de filme fino com anisotropia de resistividade elétrica. A idéia foi usar um efeito quântico presente em filmes muito finos de materiais condutores ou semicondutores com morfologia anisotrópica na superfície. A morfologia foi um perfil unidirecional quase-senoidal. As resistividades foram determinadas medindo-se as resistências elétricas destes materiais em direções ortogonais, levando-se em conta a geometria da amostra e suas dimensões. O material condutor usado foi Polimetilmetacrilato (PMMA) com ouro implantado na superfície. A profundidade média de implantação foi 2,7 nm. Na fabricação do dispositivo foi utilizada micro e nanolitografia, caracterização por Microscopia Eletrônica de Varredura e Microscopia de Força Atômica e implantação de ouro por MePIIID (Metal Plasma Immersion Ion Implantation and Deposition).
Title in English
Electrical resistivity anisotropy in nanostructured thin films.
Keywords in English
Atomic force microscopy
Electrical resistivity
Litography
Microfabrication
Nanofabrication
Nanolithography
Nanostructured materials
New Materials
Plasma (microeletronics)
Plasma deposition
Scanning electron microscopy
Abstract in English
The main purpose of this work was to develop a thin film device with electrical anisotropic resistivity. The idea was to use a quantum effect which is present in very thin films of conductor or semiconductor materials with anisotropic morphology on the surface. The morphology was a sinusoidal-like unidirectional profile. The resistivities were determined measuring the electrical resistances of theses materials in orthogonal directions, taking in account the sample geometry and dimensions. The conductive material used was Polymethylmethacrylate (PMMA) with gold implanted on the surface. The average implanted depth was 2.7 nm. In the device fabrication were used micro and nanolithography, characterization by Scanning Electron Microscopy and Atomic Force Microscopy and gold implantation by MePIIID (Metal Plasma Immersion Ion Implantation and Deposition).
 
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MPSIedrev.doc (75.50 Kbytes)
Publishing Date
2007-08-24
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • M. Cattani, et al. A near sinusoidal surface morphology created by scan-induced contact AFM nanolitography on PMMA Polymer. In 5th Materials Research Society Meeting and V Encontro da SBPmat, Costão do Santinho, 2006. 5th Materials Research Society Meeting and V Encontro da SBPmat., 2006. Resumo.
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