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A novel micromachined thermopile IR detector module with filter and detector cointegrated by wafer level Au-Au vacuum bonding is presented in this paper. Filter is directly bonded on the IR detector to miniaturize the detector module, as well as reduce the packaging cost. Because the gas convection will be eliminated in vacuum, a better thermal isolation can be achieved for the vacuum packaged IR...
A native alumina thin film existing on aluminium and its evolution in thermosonic gold wire bonding were characterized using high resolution transmission electron microscopy (HR TEM). It has been found that the partly fracture of this alumina film by the ultrasonic vibration allows the interdiffusion at the Au/Al interface, such that the intermetallic compounds (IMCs) are formed. The IMCs are identified...
The EC BONSAI Project intends to develop multifunctional nanoparticles with tailored optical and/or magnetic properties for visualizing complex cellular structures (in tissues and organs), receptors, tumor cells and masses. In this framework, here we will report on recent advances on the preparation of luminescent silicon nanoparticles, magnetic iron oxide nanoparticles and Au nanorods for bio-imaging...
Homoepitaxial growth of Au on Bi-covered Au(111) was studied at room temperature using reflection high-energy electron diffraction (RHEED) and Auger electron spectroscopy (AES). From observations of RHEED it is found that the Au(111) (23×1) reconstruction structure changes to a (1×1) by about 0.16–0.5ML deposition of Bi and to a (2√3×2√3)R30° by about 1.0ML deposition of Bi, respectively. The surface...
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