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This paper introduces a new high voltage double partial SOI (DPSOI) with variable-k (permittivity) dielectric for improving breakdown voltage. The mechanism of breakdown is that the length of vertical ionization integral increases significantly, because of the two symmetrical windows results it by folding effect and the additional electric field produced from variable-k dielectric buried layer modulates...
Low-density Polyethylene (LDPE) was modified by using simultaneously 2 additives. Each additive had a specific attribute. Silicon was used. Using TEM with EELS, it was proved first that the passivated version constituted a double core consisting of Si surrounded by a nanometric layer of amorphous Silica (SiO2). Thus Si brought the possibility of an enlarged dielectric storage capacity with a barrier...
Pentacene organic thin-film transistor (OTFT) using Pd as gate electrode is proposed, with high-k LaZrO as gate dielectric. The Pd film is prepared by e-beam evaporation and then the LaZrO film is deposited by reactive sputtering in Ar/O2 ambience followed by an annealing in N2 at 400 °C. The OTFT achieves an obvious increase in carrier mobility (to 1.02 cm2/V·s), as compared with its counterpart...
This paper presents an efficient and accurate methodology for the layered media Green's function evaluation in fully 3D electromagnetic scenarios such as of IC packages and printed circuit boards.
There is no doubt that component embedding technology becomes more visible in handheld applications like smart phones and wearables. Embedding technology is pushing the miniaturization which is a must for the next big wave of Wearable Electronics and Internet of Things (IoT). The technology is going to System in Package and the question today is how far you can go in miniaturization and how much of...
An unconventional technique for fabricating single-crystal silicon microstructures is employed as a means of achieving high-efficiency terahertz resonators. The resonators are arranged in a homogeneous array, which is designed to operate as an artificial magnetic conductor with potential for applications in compact terahertz antennas. Experimental validation confirms zero phase change of the electric...
We describe the microstructuring of a silicon surface to act as a spatially tunable dielectric layer. As an example, we show FDTD simulations and fabrication results of it used as an antireflective layer optimized for the terahertz region.
A mechanical study of silicon interposer bow reduction, from wafer level manufacturing to large die stacking including analytical modeling, is presented in this paper. Indeed, understanding and reducing the warpage of a dissymmetrical substrate is fundamental for assembly yield and interconnects reliability. The target here is a bow less than 50 µm for a 650 mm2 Si-interposer.
Transformer bushing is an outlet device which leads the internal high-voltage to the outside of transformer. It is not only an important part of power transformer, but also is very important power transmission equipment. The effective condition assessment for transformer bushing, to guide the operation and maintenance of bushing and reduce the failure probability, have an important theoretical and...
This paper presents the design exploration of a basic cascode circuit (CAS) targeted to increase the intrinsic gain Aν of a graphene field-effect-transistor (GFET) by decreasing its output conductance go. First, the parameters of a large-signal compact-model, based on drift-diffusion carrier transport, are fit to measurements carried on 2 CVD GFETs, fabricated independently by different research groups...
Resonant dielectric nanostructures has recently emerged as a new direction in nanophotonics, which may solve the major problems of plasmonics related to high losses, low magnetic response and CMOS incompatibility. In this talk I will review the recent progress in this rapidly developing field and demonstrate recent results from our team showing application of resonant dielectric nanostructures to...
High refractive index dielectric nanoparticles are promising as a complementary nanophotonics platform due to low absorption losses and the co-existence of magnetic and electric resonances when compared with plasmonic nanostructures. Here we demonstrate that finely designed asymmetric dimer configurations of silicon nanoparticles can switch the direction of scattered electromagnetic field depending...
We demonstrate experimentally electrical tuning of dielectric metasurface, consisting of silicon disks infiltrated with nematic liquid crystals. In particular, we show that by switching a control voltage on and off we can achieve 100% amplitude modulation and approximately π phase shift. This is for the first time to our knowledge demonstration of electrical tuning of dielectric metasurfaces thus...
Interplay of magnetic and electric dipole moments of a single dielectric nanoparticle completely governs its scattering properties in the optical range. The amplitudes and phases of the induced dipoles can be altered by varying permittivity of the nanoparticle via generation of electron-hole plasma. In this work, we show ultrafast operation time of a silicon nanoantenna controlled by electron-hole...
The electron transport in silicon at low and very low energy (10 eV–2 keV) is investigated with a Monte Carlo code. The elastic scattering with nuclei is described by Mott's model of partial waves, whereas the inelastic collisions with electrons are described by the complex dielectric function theory. The code has been validated by means of comparison with electron emission yields (EEY) and energy...
Optical elements and devices based on metallic metasurface, with periodic micronano structures sitting on a substrate, have advantages such as ultra-thinness, broadband response and large extending angles. However, the relatively low efficiency is still a big problem and would hold back their practical applications. Though high performance metasurface devices such as hologram with 80% optical efficiency...
In the display devices, it is highly required to make vivid color and have broad viewing angle without losing color information [1]. Recently, nanostructured color reflectors have been widely studied based on the plasmonic resonances of metal nanoparticles and nano-antennas [2]. However, plasmonic structure has trouble with intrinsic metallic absorption loss. Very recently, it has been reported that...
We describe a technique for realizing high-efficiency dielectric resonator antennas composed of intrinsic silicon in the terahertz range. These dielectric resonator antennas are deployed in both uniform and nonuniform array configurations, for the manipulation of terahertz radiation. The uniform array configuration is analyzed in terms of quality factor, and is subsequently employed as a highly efficient...
Silicon particles hosting Mie resonances are used to design all-dielectric optical antennas that feature the ability to enhance the decay rates of quantum emitters, to detect individual molecules and to tailor the chirality of light emission.
This paper presents a simple, low-cost, and high efficiency dielectric resonator antenna operating at 70 GHz. The proposed antenna is implemented based on a newly developed Silicon-On-Glass (SOG) technology. The maximum achieved gain is 8.8 dBi with the side-lobe level of 9.1 dB. The simulated radiation efficiency of the antenna is larger than 96%.
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