148 Result(s)
within
English
Materials Science
Characterization and Evaluation of Materials
Wentao **a
-
Article
High-Resolution Transmission Electron Microscope Analysis of Tungsten Carbide Thin Films
Electron diffraction patterns and high-resolution transmission electron microscope (HREM) images show that the dominant phase in tungsten carbide thin films grown by plasma enhanced chemical vapor deposition i...
-
Article
Effect of interfacial interaction on morphology and mechanical properties of PP/POE/BaSO4 ternary composites
Ternary composites of Polypropylene (PP)/ethylene-octene copolymer (POE)/Barium Sulfate (BaSO4)(PP/POE/BaSO4) were prepared through a two-step process: BaSO4 master-batches were first prepared through blending of...
-
Article
Process Control of Epi-Layers for SiGe:C Hetero-Structure Bipolar Transistors
The SiGe:C hetero-structure bipolar transistor (HBT) has turned into a key technology for wireless communication. This paper describes the metrology tools for SiGe epitaxy process control. Two types of analysi...
-
Article
Surface Oxide Evolution on Al-Si Bond Wires
Al-Si wires are often used to make contact to bond-pads of semiconductor chips and devices. During operation in certain types of devices the wires typically reach relatively high temperatures. Under such circu...
-
Article
Oxide Reduction in Advanced Metal Stacks for Microelectronic Applications
Aluminum and copper are widely used for microelectronic interconnect applications. Interfacial oxides can cause device performance degradation and failure by significantly increasing electrical resistance. Int...
-
Article
Optical and Dielectric Properties of Eu- and Y-Polytantalate Thin Films
Due to their highly efficient photo-luminescent (PL) characteristics, the physical properties of rare-earth polytantalates, RETa7O19 (RE=Eu and Y) were further studied. AFM, SEM, HRTEM, x-ray reflectometry, spect...
-
Article
Structure Analysis of Co/Re Superlattice Grown on an Al2O3 (110) Substrate
The structure of a Re(5 nm)/(Co(2 nm)/Re(3 nm))19 sample grown via magnetron sputtering was thoroughly analyzed via x-ray reflectivity (XRR) and transmission electron microscopy (TEM). Cross-sectional TEM results...
-
Article
Growth of SiGe film by using a single-wafer rapid thermal processing UHV/CVD system
Ultra-high-vacuum chemical vapor deposition (UHV/CVD) system displays excellent performance for the growth of high-quality SiGe film. Investigations have shown that have shown that SiGe film grown by this syst...
-
Article
Composition determination of Si/Si1−xGex/Si by photoreflectance spectroscopy
UHVCVD-grown Si/Si1−xGex/Si heterostructure is investigated by photoreflectance spectroscopy (PR). The principle of PR in determining Ge content of a Si1−xGex epilayer is thoroughly described. The unambiguous E1 ...
-
Article
Towards 3D image-based nanocrystallography by means of transmission electron goniometry
It is well known that the crystallographic phase and morphology of many materials changes with the crystal size in the tens of nanometer range and that many nanocrystals possess structural defects in excess of...
-
Article
Uniform dome-shaped self-assembled Ge islands by UHV/CVD after boron pre-deposition
Effect of pre-deposited boron atoms on self-assembled growth of Ge islands on Si(100) substrate by UHV/CVD was investigated by atomic force microscopy (AFM). Proportion of dome-shaped Ge islands increases with...
-
Article
Synthesis, structure and nonlinear optical properties of a two-photon photopolymerization initiator
The target compound, Trans-4-(N-2-hydroxyethyl-N-ethyl amino)-4′-(diethyl amino)stilbene, has been synthesized and characterized. The one-photon fluorescence and its lifetimes, two-photon fluorescence and solvent...
-
Article
Preparation of Highly Dispersed Iron Oxide Nanoparticles in Amine-Modified SBA-15
Silica-supported iron oxide nanoparticles are prepared by precipitation within the pores of amine-functionalized SBA-15 silica. The loading of the iron oxide possible by this method is at least 11 wt%. STEM an...
-
Article
Mesocarbon microbeads supported PtSn catalysts for electrochemical oxidation of ethanol
Mesocarbon microbeads (MCMB) supported PtSn catalysts were prepared by alcohol reduction method and characterized by XRD, FESEM and EDX. XRD results show that the addition of Sn to Pt/MCMB extends the fcc latt...
-
Article
Preparation and characterization of LiFePO4/graphene-oxide composites
LiFePO4/graphene-oxide (GNO) composites were prepared by co-precipitation method. Their structure and morphology were investigated by X-ray diffraction, Fourier transform infrared spectra, field emission scanning...
-
Article
Application of FIB/SEM and TEM to Bit Failure Analyses in SRAM Arrays
Many microelectronic chips contain embedded memory arrays. A single SRAM bit-cell contains several transistors. Failure of any of the transistors makes the entire bit-cell inoperable. Dual-beam Focused Ion Bea...
-
Article
Properties of alkali-solubilized collagen solution crosslinked by N-hydroxysuccinimide activated adipic acid
The effect of N-hydroxysuccinimide activated adipic acid (NHS-AA) on the properties of alkali-solubilized collagen solutions was examined. The residual amino group content in crosslinked collagen, determined b...
-
Article
Processing highly porous SiC ceramics using poly(ether-co-octene) and hollow microsphere templates
-
Article
Template synthesis of braided gold nanowires with gemini surfactant–HAuCl4 aggregates
One-dimensional braided gold nanowires with 40–50 nm in width and several micrometers in length which were fabricated by using cationic gemini surfactant hexamethylene-1,6-bis (dodecyl dimethylammonium bromide...
-
Article
Numerical Simulations of Inclusion Behavior in Gas-Stirred Ladles
A computation fluid dynamics–population balance model (CFD–PBM) coupled model has been proposed to investigate the bubbly plume flow and inclusion behavior including growth, size distribution, and removal in g...
