Molecular Dynamics Study of the Role of the Free Surface on Block Copolymer Thin Film Morphology and Alignment

ACS Nano ◽  
2011 ◽  
Vol 5 (4) ◽  
pp. 2895-2907 ◽  
Author(s):  
Christopher Forrey ◽  
Kevin G. Yager ◽  
Samuel P. Broadaway
Keyword(s):  
Thin Film ◽  
Molecular Dynamics ◽  
Free Surface ◽  
Block Copolymer ◽  
Film Morphology

On the role of tin underlays for the prevention of thermal grooving in thin gold films

1986 ◽  
Vol 44 ◽  
pp. 732-733
Author(s):  
Jin Young Kim ◽  
R. E. Hummel ◽  
R. T. DeHoff
Keyword(s):  
Thin Film ◽  
Free Surface ◽  
Grain Boundary ◽  
Beneficial Effect ◽  
Failure Mechanism ◽  
Failure Mechanisms ◽  
Distinct Advantage ◽  
Gold Films ◽  
Gold Thin Film

Gold thin film metallizations in microelectronic circuits have a distinct advantage over those consisting of aluminum because they are less susceptible to electromigration. When electromigration is no longer the principal failure mechanism, other failure mechanisms caused by d.c. stressing might become important. In gold thin-film metallizations, grain boundary grooving is the principal failure mechanism.Previous studies have shown that grain boundary grooving in gold films can be prevented by an indium underlay between the substrate and gold. The beneficial effect of the In/Au composite film is mainly due to roughening of the surface of the gold films, redistribution of indium on the gold films and formation of In2O3 on the free surface and along the grain boundaries of the gold films during air annealing.

Competitive Motions of Grain-Boundary and Free Surface in Selecting Thin Film Morphology

1996 ◽  
Vol 441 ◽  
Author(s):  
B. Sun ◽  
Z. Suo ◽  
W. Yang
Keyword(s):  
Thin Film ◽  
Free Energy ◽  
Free Surface ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Analytic Solutions ◽  
Film Morphology ◽  
Polycrystalline Thin Film ◽  
Continuous Film

AbstractDuring annealing of a polycrystalline thin film, grain-boundaries and film surfaces move. If the grain-boundaries move faster, the grains having the lowest free energy grow at the expense of others, resulting in a continuous film with large grains. If the film surfaces move faster, they groove along their junctions with the grain-boundaries, breaking the film to islands. This paper describes analytic solutions for steady surface motions, and discusses the morphology selection.

Hydrogen sensors: Role of palladium thin film morphology

2007 ◽  
Vol 120 (2) ◽  
pp. 439-446 ◽  
Author(s):  
J. RaviPrakash ◽  
A.H. McDaniel ◽  
M. Horn ◽  
L. Pilione ◽  
P. Sunal ◽  
...  
Keyword(s):  
Thin Film ◽  
Film Morphology ◽  
Hydrogen Sensors

Response of Block Copolymer Thin-Film Morphology to Line-Width Roughness on a Chemoepitaxial Template

2014 ◽  
Vol 47 (14) ◽  
pp. 4824-4829 ◽  
Author(s):  
Paul N. Patrone ◽  
Gregg M. Gallatin
Keyword(s):  
Thin Film ◽  
Block Copolymer ◽  
Line Width ◽  
Film Morphology

Modeling of Size Effects in Diffusion Driven Processes at Nanoscale - Large Atomic and Mesoscale Methods

2017 ◽  
Vol 12 ◽  
pp. 38-73
Author(s):  
Tomasz Wejrzanowski ◽  
Krzysztof Jan Kurzydlowski
Keyword(s):  
Molecular Dynamics ◽  
Monte Carlo ◽  
Free Surface ◽  
Size Effects ◽  
Experimental Studies ◽  
High Energy ◽  
Intergranular Phase ◽  
Wide Range ◽  
Microstructure Effect

The results of the studies presented here are devoted to understanding of microstructure effect on the processes and properties driven by diffusion. The role of various interfaces (intergranular, phase, free surface), as the high-energy defects, is underlined and investigated with special attention. The methodology relevant to analyses of the microstructural processes is first briefly presented. The capability and limitations of classical molecular dynamics, mesoscale Monte Carlo and cellular automaton techniques are described. Two examples of the diffusion driven processes analyzed at various length and time scale are shown: namely, grain growth in nanometallic materials and melting of thin embedded films. The modeling results are also accompanied with experimental studies. Thanks to application of numerical methods, models of relevant processes were proposed, which enabled to provide quantitative relationships between microstructure and the process kinetics. Such relationships can be later used for design of optimized materials for wide range of applications.

scholarly journals Role of Polymorphism and Thin-Film Morphology in Organic Semiconductors Processed by Solution Shearing

ACS Omega ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 2329-2339 ◽  
Author(s):  
Sergi Riera-Galindo ◽  
Adrián Tamayo ◽  
Marta Mas-Torrent
Keyword(s):  
Thin Film ◽  
Organic Semiconductors ◽  
Film Morphology

Thin Film Morphology of Block Copolymer Blends with Tunable Supramolecular Interactions for Lithographic Applications

2010 ◽  
Vol 43 (6) ◽  
pp. 2880-2889 ◽  
Author(s):  
Chuanbing Tang ◽  
Su-mi Hur ◽  
Brian C. Stahl ◽  
Kulandaivelu Sivanandan ◽  
Michael Dimitriou ◽  
...  
Keyword(s):  
Thin Film ◽  
Block Copolymer ◽  
Supramolecular Interactions ◽  
Film Morphology ◽  
Copolymer Blends
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