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Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
This paper presents the development of aperture-coupled patch antennas operating in industrial scientific and medical band at 60 GHz (57 GHZ to 64 GHz), with square and circular shapes, for on-chip application. The aperture-coupled antenna proposed is composed by a transmission feed line, an aperture and patch element built in aluminum with 10 micrometers of thickness lying on two layers of silicon...
This work proposes and describes in details a complete setup solution for testing of non-encapsulated electronic devices under mechanical stress. The equipment was implemented and calibrated to later use in electrical characterization of devices, such as MOSFETs and diodes under controlled mechanical stress. The semiconductor bending equipment allows the electrical characterization of devices using...
Analog to Information Converters (AIC) acquires a discrete representation of a signal from the analog domain in Compressed Sensing. One of the crucial point in the AIC design is the configuration of the measurement matrix. Depending of its characteristics, this matrix can degrade the AIC performance. In this paper we analyze the influence of the primitive polynomial choice to configure a Linear Feedback...
This paper described the development of an NFC tag-sensing platform integrated a neonatal incubator to measure the temperature of premature newborns (NB) by its mattress or pillow. The tag created uses the ISO/IEC 14443-B protocol to establish the communication, sending the current value of body temperature through its Pseudo-Unique Proximity Integrated Circuit Card Identifier (PUPI). As result, this...
A piezoelectric micro-cantilever energy harvester was designed for a standard industry process and its expected power generation capability was simulated using two different analytical models: a simplified one-dimensional model and a circuit equivalent model. The estimated power obtained was compared with the results of similar structures published by other authors, adopting a novel performance parameter...
Impedance spectroscopy is often applied to characterize solids and fluids since each substance presents its own and sometimes unique impedance spectra. In industrial applications, impedance spectroscopy has the potential to monitor many processes such as those occurring in chemical reactors or liquid transportation in pipelines. In this paper, we introduce a sensor being able to perform measurements...
An alternative electrical model for Ion-Sensitive Field-Effect Transistor (ISFET) sensors is presented in this work. The proposed model is worth to be employed in both DC and transient simulations where the behavior of the ISFET sensor coupled to its readout circuit can therefore be investigated. Whereas, previous models found in the literature could only be employed to perform DC simulations. The...
Determining the position of a target is the central issue in several engineering problems, from computer vision to sonar or radar systems. Echo-localization systems use the reflected sound waves to extract information from a specific target taking advantages of the sound or ultrasound frequency range. In contrast to traditional echo-localization systems, which use single-tone excitation, this paper...
An improved readout circuit interface for ion-sensitive field-effect transistor (ISFET) is proposed in this work. When compared with conventional topologies found on the literature, the proposed ISFET readout circuit presents at least two advantages. The first concerns the simplicity of the new circuity topology, and the second is the additional gain conferred to the sensor output signal. The performance...
This paper proposes a detailed evaluation of the impact of digital filters when applied to the Neutrinos Angra Experiment. The signals coming out from its front-end electronics are digitized and then sent to an FPGA where further processing might be carried out. In this context, this work proposes a set of peak amplitude estimators optimized to have minimum variance. Constrained optimization technique...
The active-pixel-sensor (APS) imagers operating in logarithmic mode yield high-dynamic-range images. However, this pixel exhibits a small output signal voltage swing. The double-log PMOS APS improves the signal swing in a factor higher than two compared with the conventional log APS. Fixed-pattern noise across the focal-plane array is particularly critical in the log mode, but can be reduced by double...
The literature presents many different active pixel sensor (APS) topologies operating in the high dynamic range logarithmic mode, as well as, different techniques to improve image quality by attenuating fixed-pattern noise (FPN). Together with the proposed solution, the advantages and disadvantages of each new solution are usually presented in their published reports. However, it is hard to find different...
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