Materials Literature
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We study the formation and evolution of coherent islands on lattice mismatched epitaxially strained films. Faceted islands form in films with aniostropic surface tension. Under annealing, these islands ripen until a stable array is formed, with an island density which increases with film thickness. Under deposition, a…
Ab-initio correlation results for an idealized high Tc-compound are compared to density functional (DF) calculations for the same system. It is shown that and why the DF-charge distribution is wrong. The largest deficiency arises for the Cu-d(x2-y2)-occupation, originating from strong atomic correlations but mostly fr…
We report the synthesis and characterization of nanowire−nanoribbon junction arrays of ZnO, which were grown by thermal evaporation of the mixture of ZnO and SnO 2 powders at 1300 °C through a vapor−liquid−solid process. The Sn particles produced by the reduction of SnO 2 act as the catalyst; the structure is formed d…
KMgF/sub 3/ crystals doped with Ce/sup 3+/ have been investigated as a new material for dosimetry of ionizing radiation. Earlier researches have shown their thermoluminescence (TL) properties. The present work shows that this compound can also be read out by optical stimulation with powerful blue or yellow-green light…
The porous silicon (PS) layers on the front surface of n/sup +//p monocrystalline, textured silicon solar cells were investigated with the aim to improve the performance of standard screen-printed silicon solar cells. The application of the PS layer is very promising because simultaneous, antireflection coating and su…
The National Measurement Laboratory (NML) is responsible for the development, maintenance and dissemination of physical standards in Australia. This paper addresses some aspects of measurement traceability of high voltage equipment, itemising the reference systems maintained at NML, which are established through funda…
Reactive templated grain growth (RTGG) was used to obtain [001] fiber-textured (1-x)Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-(x)PbTiO/sub 3/ (x=0.3-0.35). The RTGG process involved the use of-oriented BaTiO/sub 3/ and SrTiO/sub 3/ template particles in a fine grained precursor PMN-32PT matrix during tape casting. A high deg…
In an effort to answer the global call for "green technology", On Semiconductor Philippines Inc., has evaluated and qualified molding encapsulants (green molding compounds, GMCs) which do not contain the conventional halogenated flame-retardant. In this study, the tested resin formulations which are based on biphenyl,…
A new environmentally friendly, self-extinguishing epoxy-resin compound with no flame-retardants (such as halogen derivatives) has been developed for integrated circuit (IC) packaging. This compound mainly consists of phenol-aralkyl-type epoxy resin and hardener both of which contain a multi-aromatic substituent, fuse…
The application of megasonic energy for particle removal has been shown to be a very effective, noncontact cleaning method. Equally as important to the cleaning of the wafer surface is the drying process. A very common method is a high speed spin dry but this is ineffective both from a particle reduction and water-mar…
We introduce several methods for symmetry detection and present results of their experimental evaluation on diatom images. The methods are based on distance lists, cyclic string matching, and gray level gradient direction histograms. From the experimental results it can be concluded that symmetry information is useful…
In this paper, we present data from three wafer level electromigration test techniques, isothermal, constant current, and standard wafer level electromigration accelerated test (SWEAT), and compare various aspects of the data. The isothermal method keeps the test line at a constant temperature by monitoring line resis…
This paper deals with partial discharge (PD) measurement technique on the range of high frequency by capacitive sensor for the power cable system. This sensor is installed inside of cable joints and terminations without affecting the insulation design. The sensitivity of the sensor depending on the installation condit…
The Standard Wafer Level Electromigration Accelerated Test (SWEAT) is one of a few highly accelerated stress tests of metal-line test structures that are used to monitor electromigration resistance. Earlier works and our own examinations have shown that when the JEDEC standard SWEAT method is used, unexpectedly large…
An asymmetric copper(I) dimer Cu(1)2(pip)2 [pip = (2-picolyliminomethyl)pyrrole anion] with both two-coordinate and four-coordinate copper(I) sites was synthesized and studied by X-ray diffraction and DFT calculations.
Black oxide is a conversion coating applied to a copper surface to improve the interface adhesion with polymeric adhesives and moulding compounds. State-of-the-art analytical instruments, including SEM, TEM, XPS, AFM, XRD, goniometry, dynamic SIMS and RBS were employed to characterize the coated surface and interfaces…
Using a lumped capacitance circuit model simulated under the Electromagnetic Transient for DC (EMTDC) program, waveforms of the Whitehead equivalent void model are generated and analyzed. Type of discharge varies within a void and is not readily known due to the uncertainty in the parameters. This paper attempts a mod…
We have measured some of the dielectric, elastic, and piezoelectric constants of several types of PZT piezoelectric ceramics, manufactured by EDO Corporation, as a function of applied electric field and mechanical stress. Both the high frequency impedance resonance method and the low frequency response of the material…
We present hard x-ray scattering studies of the charge and orbital ordering in ${\mathrm{Nd}}_{1/2}{\mathrm{Sr}}_{1/2}{\mathrm{MnO}}_{3}$ together with magnetization and thermal expansion measurements as a function of temperature and magnetic field. Superstructure reflections corresponding to the orbital ordering belo…
Density-functional theory is used to investigate the phase behavior of colloidal binary hard-platelet and hard-rod fluids near a single hard wall or confined in a slit pore. The Zwanzig model, in which the orientations of the particles of rectangular shape are restricted to three orthogonal orientations, is analyzed b…