Computer Simulations on the grain boundary grooving and cathode edge displacement in bamboo-like metallic interconnects

Date

2006-04-21

Author

Ogurtani, Tarik Omer
Akyildiz, Oncu

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

131
views

0
downloads

The process of grain boundary (GB) grooving and cathode edge displacement invoked by the surface drift-diffusion along the sidewalls in sandwich type thin film bamboo lines are simulated by introducing a new mathematical model. In the absence of the electric field, the computer studies on the triple junction kinetics show that it obeys the first order reaction kinetics at early transient stage, which is followed by the familiar time law as t(1/4), at the steady state regime. The applied electric field (EF) in constant current experiments modifies this time law drastically above the well-defined electron wind intensity (EWI) threshold, and puts an upper limit for the groove depth, which decreases monotonically with EWI. Below the threshold level, the capillary regime predominates, and EF has little effect on the general kinetics of GB grooving, other then the linear increase in total elapsed time with EWI.

Subject Keywords

Electromigration forces, Electric-field, Diffusion

URI

https://hdl.handle.net/11511/65596

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Linear and nonlinear intersubband optical absorptions in an asymmetric rectangular quantum well Karabulut, I.; Atav, U.; Safak, H.; Tomak, Mehmet (2007-02-01) The linear and nonlinear intersubband optical absorptions in AlxlGa1-xlAs/GaAs/AlxrGa1-xrAs asymmetric rectangular quantum well are studied within the framework of the density matrix formalism. We have calculated the electron energy levels and the envelope wave functions using the effective mass approach. In addition, we have obtained an expression for saturation intensity. It is shown that the parameters such as asymmetry and width of potential well not only shift the peak positions in absorption spectrum ...
Statistical analysis of second-order relations of 3D structures Kalkan, Sinan; Wörgötter, Florentin; Kruger, Norbert (2007-03-08) Algorithmic 3D reconstruction methods like stereopsis or structure from motion fail to extract depth at homogeneous image structures where the human visual system succeeds and is able to estimate depth. In this paper, using chromatic 3D range data, we analyze in which way depth in homogeneous structures is related to the depth at the bounding edges. For this, we first extract the local 3D structure of regularly sampled points, and then, analyze the coplanarity relation between these local 3D structures. ...
Numerical simulations of eutrophication processes in İzmir Bay with a coupled three dimensional eco-hydrodynamic model Yelekçi, Özge; Fach Salihoğlu, Bettina Andrea; Ibello, Valeria; Department of Physical Oceanography (2013) A three dimensional time-dependent coupled ecosystem model is applied to İzmir Bay for the first time. Delft3D modelling suite’s FLOW and ECO modules are adapted and tuned for the region. A reference model with a time frame of three years is produced that represents the current physical and biogeochemical status of the bay. Model skill assessment methods are used as a measure of model performance and to address the shortcomings of it. The hydrodynamics model is able to produce physical features in terms of ...
Magnetic and Structural Analysis of a Transverse Flux Claw Pole Linear Machine Keysan, Ozan; Mueller, Markus A. (2013-01-01) This paper details the design and testing of a novel transverse flux claw pole linear machine suitable for large superconducting generators. The machine utilises a modular claw pole transducer design with a stationary field winding which eliminates the need for cryogenic couplers and electrical brushes for a superconducting machine. The results from this prototype will enable a better understanding of the electromagnetic and mechanical structures before embarking on a more costly super-conducting design. Th...
Computational modeling of thermal and shrinkage-induced cracking in concrete Ghasabeh, Mehran; Göktepe, Serdar; Yaman, İsmail Özgür; Department of Civil Engineering (2021-3-3) This work is concerned with the computational modeling of thermal and shrinkage-induced cracking in concrete. Thermal and hygral gradients develop within concrete structures of varying sizes and aspect ratios due to the intrinsic physicochemical phenomena accompanied by adverse environmental effects. These spatio-temporal gradients invariably result in uneven volumetric deformations that can cause stress concentrations when the concrete is sufficiently rigid. Then, when the gained tensile strength is lower ...

Citation Formats

T. O. Ogurtani and O. Akyildiz, “Computer Simulations on the grain boundary grooving and cathode edge displacement in bamboo-like metallic interconnects,” 2006, vol. 914, p. 121, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65596.