Surface morphological evolution on single crystal films by strong anisotropic drift diffusion under capillary and electromigration forces

Download

index.pdf

Date

2006-08-15

Author

Ogurtani, Tarik Omer
Celik, Aytac

Metadata

Show full item record

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

Item Usage Stats

76
views

0
downloads

The morphological evolution of voids at unpassivated surfaces and the sidewalls of single crystal metallic films is investigated via computer simulations by using a mathematical model based on fundamental postulates of irreversible thermodynamics. The effect of drift-diffusion anisotropy on the development of surface morphological scenarios is explored under the action of electromigration (EM) and capillary forces, utilizing numerous combinations of the surface texture and the direction of the applied electric field. Analytical expressions for the interconnect catastrophic failure time due to the EM-induced transgranular wedge-shaped voids, the propagation velocity of surface solitary waves, and the incubation time of the regenerative oscillatory surface waves are deduced under the severe instability regimes, by inverse normalization procedures applied to the outputs of the extensive computer simulation experiments. (c) 2006 American Institute of Physics.

Subject Keywords

General Physics and Astronomy

URI

https://hdl.handle.net/11511/65473

Journal

JOURNAL OF APPLIED PHYSICS

DOI

https://doi.org/10.1063/1.2234800

Collections

Department of Metallurgical and Materials Engineering, Article

Suggestions

OpenMETU
Core

Grain boundary grooving induced by the anisotropic surface drift diffusion driven by the capillary and electromigration forces: Simulations Akyildiz, Oncu; Ogurtani, Tarik Omer (AIP Publishing, 2011-08-15) The morphological evolution kinetics of a bicrystal thin film induced by anisotropic surface drift diffusion and driven by the applied electrostatic field is investigated via self consistent dynamical computer simulations. The physico-mathematical model, which is based upon the irreversible thermodynamic treatment of surfaces and interfaces with singularities [T. O. Ogurtani, J. Chem. Phys. 124, 144706 (2006)], provided us with auto-control on the otherwise free-motion of the triple junction at the intersec...
Morphological evolution of voids by surface drift diffusion driven by capillary, electromigration, and thermal-stress gradients induced by steady-state heat flow in passivated metallic thin films and flip chip solder joints. I. Theory Ogurtani, Tarik Omer; Akyildiz, Oncu (AIP Publishing, 2008-07-15) The morphological evolution of intragranular voids induced by surface drift diffusion under the actions of capillary and electromigration (EM) forces and thermal-stress gradients (TSGs) associated with steady-state heat flow is investigated in passivated metallic thin films and flip chip solder joints via computer simulation using the front-tracking method. In the mesoscopic nonequilibrium thermodynamic formulation of the generalized driving forces for the thermal-stress-induced surface drift diffusion, not...
Morphological evolution of voids by surface drift diffusion driven by the capillary, electromigration, and thermal-stress gradient induced by the steady state heat flow in passivated metallic thin films and flip-chip solder joints. II. Applications Ogurtani, Tarik Omer; Akyildiz, Oncu (AIP Publishing, 2008-07-15) The void growth and drift motion induced by the combined actions of the phase transformation (evaporation and condensation) and surface drift diffusion driven by the capillary and electromigration forces and thermal-stress gradients are investigated in passivated metallic thin films and flip-chip solder joints via computer simulation using the front-tracking method. As far as the device reliability is concerned, the most critical configuration for solder joint failure occurs even when thermal stresses are l...
Defect-controlled transport properties of metallic atoms along carbon nanotube surfaces Barinov, Alexei; Toffoli, Hande; Fabris, Stefano; Gregoratti, Luca; Aballe, Lucia; Dudin, Pavel; Baroni, Stefano; Kiskinova, Maya (American Physical Society (APS), 2007-07-01) The diffusion mechanism of indium atoms along multiwalled carbon nanotubes is studied by means of photoemission spectromicroscopy and density functional theory calculations. The unusually high activation temperature for diffusion (approximate to 700 K), the complex C 1s and In 3d(5/2) spectra, and the calculated adsorption energies and diffusion barriers suggest that the indium transport is controlled by the concentration of defects in the C network and proceeds via hopping of indium adatoms between C vacan...
Theoretical investigation of charge accumulation layer on the Bi-induced InAs(111)-(2 x 2) surface Ozkaya, S.; Usanmaz, D.; ÇAKMAK, MELEK; Alkan, B.; Ellialtıoğlu, Süleyman Şinasi (AIP Publishing, 2014-04-28) Based on pseudopotential method and density functional theory, we have investigated the stability, atomic geometry, and detailed electronic structures for Bi adsorbates on the InAs(111)-(2 x 2) surface with three different sites: (i) T-4 (Bi trimer centered on T-4 site), (ii) H-3 (Bi trimer centered on H-3 site), and (iii) T-4-H-3 (which is formed by trimers with opposite orientations: one centered on a T-4 site and the other on a H-3). Our total energy calculations suggest that adsorption on the T-4-H-3 si...

Citation Formats

T. O. Ogurtani and A. Celik, “Surface morphological evolution on single crystal films by strong anisotropic drift diffusion under capillary and electromigration forces,” JOURNAL OF APPLIED PHYSICS, pp. 0–0, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65473.