Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Microbeams"”.
-
Thermomechanical behavior of single crystal silicon microbeams under bending at elevated temperatures
Understanding the deformation mechanisms of materials at high temperature at the micro/nanoscale became important with the increasing miniaturization of electronic and mechanical devices. Silicon is the most commonly used material in these devices. Bulk silicon is brittle at room temperature, but …
-
Determination of three dimensional trace element distributions by the use of monochromatic x-ray microbeams
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1986.
-
Charge Collection Studies on Integrated Circuit Test Structures using Heavy-Ion Microbeams and MEDICI Simulation Calculations
… structures were experimentally studied, using microbeams produced at Sandia National Laboratories. A new technique, Diffusion Time Resolved IBICC, is first proposed in this work to measure the average arrival time of the diffused charge, which can be related to the first moment (or the average …
-
Investigation of the Mechanical Behavior of Microbeam-Based MEMS Devices
An investigation into the responses of microbeams to electric actuations is presented. Attention is focused mainly on the use of microbeams in two important MEMS-based devices: capacitive microswitches and resonant microsensors. Nonlinear models are developed to simulate the behavior of the …
-
Modeling and Simulation of Microelectromechanical Systems in Multi-Physics Fields
… and novel RF MEMS switches employing resonant microbeams. We first study microbeams excited near their fundamental natural frequencies (primary-resonance excitation). We investigate the dynamic pull-in instability and formulate safety criteria for the design of MEMS sensors and RF filters. We …
-
CHARACTERISATION OF THE MECHANICAL BEHAVIOUR OF NETWORKS AND WOVEN FABRICS WITH A DISCRETE HOMOGENIZATION MODEL
… The fibres in the network have been treated like microbeams, having both extensional and bending stiffness, with different types of connection, according to the pattern and detail of the network. The developed procedure was applied for obtaining the homogenized mechanical models for some types of …
-
Personalised Risk Assessment of Low-dose Radiation Effects on Spermatogenesis
… the technical combination of synchrotron X-ray microbeams and a unique ex vivo testes organ culture, we investigated tissue-level responses in non-uniform radiation fields, such as environmental radiation. Our data revealed the non-targeted effects, including the radiation-induced bystander …