Mantenimiento área industrial

This paper presents high performance hydrogen-terminated diamond MOSFETs fabricated on a (111)-oriented single-crystal diamond substrate. The diamond surface was passivated by a high-quality Al2O3 grown by ALD at 350°C as well as a secondary passivation layer Si3N4 deposited by PECVD. After passivation, a low ohmic contact resistance $R_{c}$ of $0.5 Omega cdot $ mm was […]

Circuit design requires fast and scalable models which are compatible to modern electronic design automation tools. For this task typically analytical compact models are preferred. However, for emerging device concepts with altered conduction mechanisms like reconfigurable FETs, tunnel FETs or feedback FETs compact models are often not yet ready for circuit simulation environments. Table models

A new pixel circuit consisting of eleven n-type IGZO transistors (TFTs) and four capacitors is proposed and applied for micro light emitting diode (MLED) displays. The circuit is driven by pulse hybrid modulation (PHM), combining pulse amplitude modulation (PAM) and pulse width modulation (PWM). In purpose, high grayscales are achieved by PAM mode and low

In this paper, we propose a new active-matrix organic light-emitting diode (AMOLED) pixel circuit using amorphous indium-gallium-zinc oxide (a-IGZO) thin film transistors (TFTs). The proposed pixel circuit consists of seven TFTs and two capacitors, compensating for both threshold voltage (VTH) and mobility variations. The simulation results show that the proposed pixel circuit can successfully compensate

This article proposed the novel approach of multimodel image matching based on the feature integration of multidirectional phase superposition and weighted moment diagrams to handle the matching problem of large contrast differences, lots of noises, and nonlinear radiometric distortion between an image pair. There are three steps for this method. First, the presented method extracted

In recent years, geosynchronous synthetic aperture radar (GEO SAR) has attracted many scientists to carry out relevant research. Its research is in-depth and gradually maturing. However, conventional GEO SAR has the problems of great influence by the Earth’s rotation, complex timing design, uneven flight speed in the whole orbit, nonorthogonal range, and azimuth resolution, which

This article develops and examines techniques to enable coherent change detection (CCD) for short-range, high-resolution drone-borne synthetic aperture radar (SAR) systems operating at high frequencies. The potential of using high frequencies at short ranges for fine-resolution imagery and sensitivity to temporal change detection is highlighted, as are the challenges in terms of sensitivity to SAR

Differential synthetic aperture radar tomography (D-TomoSAR) uses multiple SAR acquisitions at different times to form an elevation-time 2-D synthetic aperture, enabling recovery of the target’s 3-D structure and deformation velocity. However, the imaging performance of D-TomoSAR is influenced by the spatial-temporal baseline distribution, which is one of the crucial factors. Due to the difference in

Surface reflectance is an important data product in imaging spectroscopy for obtaining surface information. The complex retrieval of surface reflectance, however, critically relies on accurate knowledge of atmospheric absorption and scattering, and the compensation of these effects. Furthermore, illumination and observation geometry in combination with surface reflectance anisotropy determine dynamics in retrieved surface reflectance not

NASA’s (National Aeronautics and Space Administration) ICESat-2 with a Photon Counting LiDAR (Light Detection And Ranging) Sensor sensitively detects signal photons at high speed with an advanced detection system called the Advanced Topographic Laser Altimeter System (ATLAS). However, the sensor also extracts a large amount of background photon noise coming from the atmosphere, ground, sun,