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This paper presents a proposal of working method for the development of Virtual Instruments. The method is valid with the design of an open source graphical user interface and its implementation as a virtual instrument to acquire the variables of a prototype of an industrial process for stamping parts. The method is developed in four stages: analysis and modeling, design, construction and validation...
IoT (Internet of Things) devices tend to work intermittently, and the leakage power reduction in the sleeping state is essential. Although giving the reverse body bias to the back gate of transistors is an efficient technique to reduce the leakage power, it has not been commonly used dynamically because of the large timing overhead when a common CMOS process is used. However, recent SOI technologies...
Tip to Tip (T2T) of interconnect lines in advanced CMOS is quite important when downscaling the area of SRAM and logic standard cells. When T2T size is increasing we have less space for via placement. Additionally variability could impact the yield of the Dual Damascene (DD) structure because of via placement or alignment. As we continue to extend 193i lithography for patterning block using multi-patterning...
We develop a feedback control method for networked epidemic spreading processes. In contrast to most prior works which consider mean field, open-loop control schemes, the present work develops a novel framework for feedback control of epidemic processes which leverages incomplete observations of the stochastic epidemic process in order to control the exact dynamics of the epidemic outbreak. We develop...
The concentrated sulfuric acid is a necessary chemical for IC-Industry, especially in the wet process. The electronic grade concentrated sulfuric acid offered by major suppliers satisfies the requirements of the new technologies in metal ion impurities and insoluble particulate matters, but during the use of that offered by a core supplier in wet process, a new kind of particle contamination appeared...
This paper deals with the reduction of the ADM1 using the “state-variable association” method, to calibrate a simple model of microalgae anaerobic digestion (the MAD model). In simulation, we show that the behavior of the calibrated MAD model and of the ADM1 are identical. Using experimental data, the calibrated MAD model predicts well the real behavior of the digestion of a substrate composed of...
Unique defect related to the tighter process margins on STI HDP process was investigated. The root cause was Si surface damage due to smaller top width of HDP. The defect was improved by HDP deposition process optimization derived relationship between ion incident angle and sputtering rate during deposition process. It was elucidated that HDP process is important for not only gap filling capability...
We relate the time-limiting behavior of a network epidemics process to the spectral radius of the underlying network. The process we study is the scaled SIS network process, a continuous-time Markov process on a static network. Our analysis differs from previous work in that the scaled SIS process accounts for the possibility that a healthy individual has a nonzero probability of becoming infected...
This paper presents a industrial processes simulator compatible with PLC Siemens S7-1200 implemented in LabVIEW software, it consists of two industrial processes (mixer and control level), this system provides help on the practical learning of industrial automation by means of PLC, thanks to its ease of use and performance indicators and existing failures.
This paper addresses the self-interference (SI) cancellation in a full-duplex radio transceiver. In particular, we focus on shared-antenna based full-duplex transceivers where the self-interference coupling channel is always frequency-selective and can also be strongly time-varying depending on the antenna matching characteristics and reflections from the surroundings. A novel digitally-controlled...
In conventional control system, crowning growth process has little consideration on controlling the microscopic quality of silicon crystal ingot. Phenomena of diameter fluctuation is observed and analyzed. Based on the cause of diameter fluctuation, a model based predictive control approach is proposed. Generalized Predictive Control (GPC) algorithm is used in the temperature feedforward path of crystal...
In this paper, the computing procedure of controllers for processes modelled as nonlinear dynamical systems is detailed. The technique is based on optimal control, which allows to work with arbitrary constraints and non-quadratic cost-to-go functional. Simple conditions are required to the performance index, such as convexity and continuity. The proposed technique to solve the optimal control problem...
III-V MOSFETs are candidates for extension of the scaling roadmap beyond 10 nm. In the vertical direction, the requirements on gate-length scaling is less stringent and vertical III-V nanowire FETs are thus attractive for high density and low-power applications. While growth in the vertical direction allows flexibility in heterostructure combination and eases the path for integration on Si substrates,...
Advances in the Through Silicon Via (TSV) process have placed performance demands on gas delivery including higher levels of speed, precision, accuracy and repeatability of critical reactive gases, all driven by demands for high etch rate, increased uniformity, small scallops and better profile control. MKS pulse gas delivery mass flow controllers (Pulse MFCs) have been developed in order to solve...
Self-aligned spacer double patterning (SADP) scheme has been proposed as an alternative to litho-etch-litho-etch (LELE) scheme because if its superior control of the lines that are patterned by a uniform and conformal deposition of a spacer layer along sidewalls of the sacrificial patterning lines. However, it adds process complexity in the film stacks and extra challenges on both the linewidth and...
The utilization of dual power control in a directional solidification system (DSS) is shown to help grow higher quality multi-crystalline ingots, particularly high performance ingots with seeded growth. Since the power ratio to the top and the side heaters is tunable, this allows optimal control of the power profile and the solidification front throughout the entire casting process. A dual power controlled...
Abstract Remote Control Unit (RCU) is a Single Board Computer (SBC) for acquiring data from field sensors and controlling final control elements on the floor of the plant. Signal Integrity (SI) issue in designing fault tolerant processor based RCU is more challenging due to increase in the demand of high speed circuit. Other issues like power consumption, size, environmental effect and EMI/EMC are...
A PI controller is one of the most widespread controller types used in industry. If the structure and order of a controller is restricted (e.g. a PI controller as is the case in this paper), this may cause worse output variance as compared to the minimum variance (MV) benchmark. Finding the best achievable performance boundary for this controller is a challenging task as it leads to a non-convex optimization...
In this paper, We consider an uncertain Markov decision process (MDP) with a control cost and a linear temporal logic (LTL) control specification. We propose a reinforcement learning (RL) based method for design of an optimal control policy by which the controlled MDP satisfies the control specification with probability 1 and minimizes an expected discounted sum of the control costs. First, we construct...
The novelty in this paper is to develop a process control for the poly-silicon CVD reactor to achieve optimum productivity of Poly-silicon seed by controlling the process parameters. The production of ingot is done through Siemens process of decomposing Trichlorosilane by Chemical Vapor Deposition on slim tungsten rods. The hardware architecture proposed monitors and controls the systematic sequential...
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