Performance Modeling of a ZnO/Si Heterostructure-Based Photodetector Module
This article describes the properties of a photodetector module based on a photosensitive heterostructure with signal-shaping and amplifying stages, designed for the…
Optical pyrometry is one of the main non-contact methods for precise temperature measurement of semiconductor wafers for vapour-phase epitaxy from metal-organic compounds (MOCVD). The requirements for the photocell of the pyrometer are due to the peculiarity of the process. In the pyrometer, the silicon photodiode operates in a mode that is characterized by a small bias voltage value, high sensitivity to weak light radiation, and low noise level. The main temperatures used in vapour-phase epitaxy technology depend on the semiconductor material being grown and the process parameters. Typically, process temperatures range from 500 to 1200 °C. A study of the dynamic range of a silicon photodiode for use in optical pyrometry was conducted. It was established that the minimum value of the dark current and the maximum value of the spectral sensitivity are key to obtaining the desired characteristics, namely, sensitivity to thermal radiation at a temperature of 450 °C. The peculiarities of the manufacturing technology of the planar-diffusion structure of the photodiode to achieve the necessary characteristics that ensure the production of photodiode structures with improved parameters are also considered.
This article describes the properties of a photodetector module based on a photosensitive heterostructure with signal-shaping and amplifying stages, designed for the…
This paper presents the possibility of employing an ionic polymer–metal composite (IPMC) actuator for coplanar waveguide fed antenna reconfiguration. Proposed antenna…
To calculate the parameters of the Marx generator, such as the voltage at the generator output, the values of the circuit elements and, if necessary, the number of…
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