Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Electromigration (EM) in solder joints under high current density has become a critical reliability issue for the future high density microelectronic packaging. A practical method of atomic density integral (ADI) for predicting solder bump electromigration reliability is proposed in this paper. The driving forces elec…
This research work was carried out on the production of rice bran/poly (lactic acid) (PLA) composites. The composition during the batch molding process included rice bran, PLA, glycerol, and magnesium stearate (mold released agent). Afterwards, the composition was molded by bio-compression at temperature of 170°C for…
The interaction effect between electromigration (EM) and microstructure evolution in Cu/Sn-58Bi/Cu solder interconnect with asymmetric configuration along current direction was studied by cellular automaton (CA) modeling embedded with finite element (FE) simulation, with a comparison to in-situ scanning electron micro…
The 2D problem of the excitation of a multiturn cylindrical wire helix filled with a metamaterial by electric- and magnetic-current filaments is considered. High-Q resonances in the low-frequency region are found and investigated. It is shown that, depending on the values of the constitutive and geometric parameters o…
The germanium-distribution profile is investigated in a Si/SiO 2 /Si structure after the implantation of 74 Ge into SiO 2 dielectric layer, bonding with the Si device layer, and high-temperature annealing. The anomalously high transport and accumulation of 74 Ge atoms near the SiO 2 /Si interface far from the bonded b…
The electrical and luminescent properties of zinc oxide films grown by CVD on sapphire substrates with different carrier gases are investigated. It is found that hydrogen, oxygen, and ammonia used as a carrier gas in the growth process insignificantly influence the defect structure and impurity content in the crystal.…
This paper reports on the electrical properties of LiPO3glass over a wide range of frequencies (10 Hz – 2 MHz) and temperatures (290 K – 627 K). The temperature dependence of a.c. conductivity is studied at different frequencies. The d.c. conductivity is due to the hopping of lithium ions. A theoretical model and math…
Rapid pressureless low temperature sintering of Ag nanoparticles for bonding is achieved. Organic shells adsorbing on the surface of Ag nanoparticles to stabilize them are thinned to be a sparse protecting layer. Numerous coherent twin boundaries formed in sintered Ag nanoparticles with a grain size of 21 nm induce ul…
Magnesium salt flame retardant is an additive flame retardant with environmental protection performance, which has been successfully applied in various industries because of its many advantages. In this paper, the chemical precipitation method is used to prepare magnesium salt flame retardants with different alkali so…
Nd3+-sensitized quenching-shield sandwich structure upconversion nanoparticles are designed by J. Yao, Y. Ma, Y. Zhao, and co-workers on page 2831. The transition layer in this unique structure is essential to eliminate the photon-quenching effect caused by Nd3+-doping, and simultaneously bridge the energy transfer fr…
The architecture of a polymer solar cell plays a crucial role on its stability because some of the materials used to build the device can suffer from degradation when exposed to air and/or oxygen. In this work we made a comparative study between the standard and the inverted polymer solar cells based on the bulk-heter…
We fabricated a carbon nanotube (CNT) via structure on a 300-mm wafer. We investigated the CNT chemical-mechanical polishing (CNT-CMP) behavior in an actual via pattern structure and clarified the technical issues of the CNT-CMP process. We developed a fabrication process of CNT via structures using selective CNT grow…
A simple compact device for prompt evaluation of the maximum electron energy has been developed. ЦВИД-01-1 and ЦВИД-3 color film indicators were used as detectors of electrons. The results of ARSA accelerator experiments were compared to those obtained using a semicircular magnetic spectrometer. The difference in the…
Using methods of X-ray fluorescence analysis (XRFA), the Rutherford backscattering of ions (RBS) and spectral X-ray microanalysis (SXRM) in combination with scanning electron microscopy (SEM), we study the elemental composition and structure of contaminants on the surface of a metallic panel with samples of different…
Organic-inorganic hybrid methyl ammonium lead halide perovskites have large absorption coefficient and high carrier mobility, which lead to their applications in photovoltaic devices. Recently, solar cells based on perovskite absorber have achieved the record solar-to-electrical power conversion efficiency as high as…
Slow strain rate tension tests were carried out in order to investigate effect on new corrosion inhibitor to stress corrosion cracking of prestressed steel wire in simulated concrete pore solution. Indeed, the results suggest that C4H13N3 can form adsorption film on the metal surface, prevent chloride ion erosion. Mea…
In this paper, a novel erase method combining Fowler-Nordheim (FN) and two-sided band to band hot hole (BBHH) erase schemes is proposed and applied in a Silicon-oxide-Nitride-Oxide-Nitride (SONOS) device with 4.5 nm thick bottom oxide, which can hardly be erased by FN tunneling. Results show that the new erase mechani…
In the present work alkaline iron oxide nanoparticles are synthesized by a novel solvo thermal approach and characterized exhaustively by various complementary techniques. Field emission scanning electron microscopy (FESEM) studies reveal that the size of nanoparticles is in the range of 31.5 nm to 96.9 nm. Energy-dis…
Tensile strength of some natural fibers such as hemp is higher than that of steel. To determine tensile properties of hemp fiber, a fiber or bundle is tensile tested with universal testing machine that is controlled by personal computer. This paper presents a small tensile testing equipment that is controlled by Raspb…
The Raman scattering spectroscopy method is used to study the interaction of phonons and free charge carriers in doped semiconductor nanostructures (superlattices). In doped superlattices based on polar semiconductors, the collective vibrational modes of free charge carriers (plasmons) shield the long-range Coulomb in…