In the present study, temperature drift analysis of metal-oxide-semiconductor field-effect transistor (MOSFET) is carried out using silicon nitride/SiO 2 as dielectric film. An n-channel depletion-mode MOSFET was fabricated with silicon nitride ion-sensitive field-effect transistor (ISFET) on the same wafer. The study presents the fabrication, simulation and characterisation of MOSFET. The gate of the ISFET is stacked with silicon nitride/SiO 2 sensing membrane that was deposited using low pressure chemical vapour deposition. Output and transfer characteristics of on-chip fabricated Al gate MOSFET were obtained in order to study the fabricated ISFET behaviour to be used as pH sensor. Silicon nitride is preferred over SiO 2 sensing film/dielectric (in case of MOSFET) which has better sensitivity and low drift. Process and device simulations were performed using Silvaco® TCAD tool.
Cloud Computing is the highly emerging area in the computer world now a days by which the web applications are delivering the computing services through internet on demand. Cloud computing making business applications more mobile, which is of a great concern and making the cloud computing more popular and necessity for the large business organization to grow more rapidly. So, it is necessary to know that how to choose a cloud by which the clients will get the better computing services than the others. There are many web application metrics which are available to calculate the performance of the web applications and their dynamic nature, but to know about the performance of clouds, cloud metric is required which makes the cloud performance measurement a reality . Cloud metric deals with the dynamic nature of the cloud. There is no metric available which can calculate the performance of cloud. A cloud metric is required for evaluating the cloud quality for recognizing the best cloud. In this paper there is an effort to develop metrics which can measure the performance of a cloud by keeping the dynamic nature of cloud in mind. This paper covers measures on which a cloud's performance can depend. Each of the measure depends on some factors and that factors are also mentioned in the paper below.
Impedance matching of the power source with the external load is one of the imperative parameters of any electronic system for the optimized power transfer from the power source to the load. Mismatch in impedance of power source and the external load may cause a drastic reduction in the power transfer due to reflections. In this paper, a systematic experimental study of load matching between energy harvester and load resistance has been presented. The experimental results showed output voltage without external load condition is 68.46 V with the output current of 14.59 µA, consequently instantaneous power of 0.937 mW. Under the optimum load of 4 MΩ, the output power reduced to 0.248 mW. A rigorous experimental study has been carried out under the frequency and force of 4.5 Hz and 2.8 N, respectively. The triboelectric energy harvester device has also been demonstrated for the potential applications of the self-sustained system.
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