bluuebunny/crossref_metadata_2025_split huggingface dataset:
Potentiostatic Electrodeposition of Au-Sn Alloys from a Non-Cyanide Bath for Soldering: Influence of Reagents Concentrations
Authors: Cardoso Juliana Lopes , Dos Santos Filho Sebastião Gomes 
Published: December 2020

This work presents an extensive study of a non-cyanide Au-Sn bath to obtain potentiostatically deposited Au-Sn alloys. In addition, Au-Sn bath speciation was studied through a program for chemical equilibrium simulation (CHEAQS Pro) and the electrochemical mechanisms were investigated using Cyclic Voltammetry (CV). Also, Rutherford Backscattering Spectroscopy (RBS) was used to determine the deposits characteristics and composition. Some recipes using different concentrations of ammonium citrate, SnCl2 and Na2SO3, and L-ascorbic acid presented the formation of colloidal gold during the electrodeposition processes. The incorporation of tin in the deposits obtained varied from 2 to 16 atomic % (at%).
Study of Nanofiber Formation by Injecting Polymeric Solutions Inside Intense Electric Fields Using Different Electrode Configurations
Authors: Furlan R. , Arroyo S. V. , Torres R. O. F. , Rosado J. A. M. , Da Silva A. N. R. 
Published: December 2020

Electrospinning has been considered a straightforward way of producing nanofibers. In this work we are analyzing non-conventional approaches of the electrospinning process to better understand and explore the effect of electrostatic interactions. The processes we are investigating include the insertion of polymer inside the electric field keeping the capillary for polymer injection at a floating potential. Also, we are investigating different electrode configurations including: same as electrospinning (with and without polarization of the capillary for polymer injection), parallel macro electrodes and, microelectrodes (with tip to tip alignment). Image analysis reveals the occurrence of instabilities/oscillations of the polymer flow (caused by redistribution of charges). Improvement of polymer flow directionality and fiber diameter reduction are observed in comparison with conventional electrospinning. Fiber orientation can be obtained using parallel macro electrodes and micro electrodes.
Energy Harvesting Circuit Using Variable Capacitor with Higher Performance
Authors: Florentino Helder R. , Galayko Dimitri , Freire Raimundo C. S. , Luciano Benedito A. , Florentino Caio 
Published: December 2020

The search for compact autonomous devices has been increasing in the microelectronics industry. These devices have the capacity to generate their own energy in order to be charged. One of the ways of harvesting environmental energy for charging such devices is by using mechanical vibrations through the use of variable capacitor. Taking this principle into account, this work presents a behavioral analysis of a system model of harvesting vibratory energy for low power, made up of a circuit which includes a variable capacitor. An architecture of a circuit which improves the relation concerning the amount of harvested energy/circuit area in relation to conventional architectures is also presented as well as a comparison between the circuit with the proposed architecture and the conventional circuit. In this way, it was verified that, under the same functioning conditions, the conventional circuit harvested a maximum power of 4,5 μW whereas the circuit with the new architecture harvested a 6,25 μW power.
Influence of Fin Shape and Temperature on Conventional and Strained MuGFETs’ Analog Parameters
Authors: Buhler Rudolf T. , Giacomini Renato , Martino João Antonio 
Published: December 2020

This work evaluates two important technological variations of Triple-Gate FETs: the use of strained silicon and the occurrence of non-rectangular body cross-section. The anaysis is focused on the electrical parameters for analog applications, and covers a temperature range from 150 K to 400 K. The comparison of the intrinsic voltage gain between the different trapezoidal fin shapes showed that the fin shape can have a major role in some analog parameters than the use of the strained silicon technology, helping to improve those parameters under certain circumstances. The highest intrinsic voltage gains were obtained for strained devices with top fin width larger than bottom at low temperature. Besides the intrinsic voltage gain, were also studied: the threshold voltage, subthreshold swing, drain induced barrier lowering, channel resistance, total harmonic distortion, transconductance, transconductance to drain current ratio, output conductance, Early voltage, drain voltage saturation and unity gain frequency.
Table of Contents and Foreword
Authors: Lubaszewski Marcelo , Pavanello Marcelo Antonio 
Published: December 2020

This issue of the Journal of Integrated Circuits and Systems (JICS) features a very broad content, including papers on multiple gate devices, sensors and silicon photodiodes. Six of these papers have been selected from the presentations given at SBMicro2011 (26th Symposium on Microelectronics Technology and Devices), which has been held in João Pessoa, Brazil in 2011. Among the contributions presented at Symposium, only a few best rated were selected by the JICS Editorial Board and have been invited to submit an extended version to the Journal. These papers have been reviewed by external experts and have been accepted for the special section on best SBMicro2011 papers. In addition to the best papers presented at the conference, spontaneous submissions passed through the usual reviewing process and have been accepted as regular papers. We would like to thank the authors for their effort in preparing these high quality papers, as well as the reviewers for their help on paper selection, which guarantees the scientific level of this issue.We sincerely hope that JICS readers will enjoy these contributions.Marcelo Lubaszewski - JICS Editor-in-chiefMarcelo Antonio Pavanello - JICS Co-Editor
SOI n- and pMuGFET devices with different TiN metal gate thickness and crystallographic orientation of the sidewalls
Authors: Rodrigues Michele , Galeti Milene , Collaert Nadine , Simoen Eddy , Claeys Cor , Martino João Antonio 
Published: December 2020

This work presents an analysis of SOI p- and nMuGFET devices with different TiN metal gate electrode thickness for rotated and standard structures.Thinner TiN metal gate allows achieving a higher intrinsic voltage gain in spite of the reduced variation observed of the gm/IDS characteristics. This effect can be attributed to the increased Early voltage values observed for thinner TiN metal gate. Even with the larger mobility of the rotated nMuGFET devices when compared with the standard ones, the larger output conductance degradation resulted in an almost similar intrinsic voltage gain. P-channel devices, when implemented on the rotated layout, offer a lower intrinsic voltage gain.The GIDL current was also analyzed on these devices, indicating to be larger in thinner metal gate and rotated configuration.
Relative-Air Humidity Sensing Element Based on Heat Transfer of a Single Micromachined Floating Polysilicon Resistor
Authors: Zambrozi Jr. Paulo , Fruett Fabiano 
Published: December 2020

An air-humidity sensing element based on heat transfer mechanisms (conduction and convection) is presented. The sensing element is a single floating resistor of doped polysilicon, which operates in two phases: thermal actuation and thermal sensing. As thermal actuation, a convenient biasing current is applied to the resistor leading its self-heating by Joule Effect. As thermal sensing, the resistor biasing current is reduced and its Thermal Time Constant (τ) during the cool-down process is measured. Characterization results show that τ is closely related to the air relative humidity (%RH). This sensor presents a maximum power consumption of 5 mW.
Table of Contents and Foreword
Authors: Pavanello Marcelo Antonio , Moraes Fernando Gehm 
Published: December 2020

In this issue of JICS some of the papers on this issue have been selected from the presented at SBCCI2012 (25th Symposium on Integrated Circuits and Systems Design), which has been held in Brasília, Brazil, in 2012. Also selected contributions from SPL2012 (VIII Southern Programmable Logic Conference) have been included. Among the contributions presented at these conferences, only a few best rated were selected by the JICS Editorial Board and have been invited to submit an extended version to the Journal. These extended papers have passed through the usual reviewing process before acceptance. In addition to the best papers presented at the mentioned conferences, spontaneous submissions passed through the usual reviewing process and have been accepted as regular papers. We would like to thank the authors for their effort in preparing these high quality papers, as well as the reviewers for their valuable contribution on paper evaluation and selection, which guarantees the scientific level of this issue. We sincerely hope that JICS readers will enjoy these contributions. We also would like to thank the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for the financial support for this JICS Issue.Marcelo Antonio Pavanello - JICS Editor-in-chief Fernando Gehm Moraes - JICS Co-Editor
Design Of An Improved And Robust Asynchronous Wrapper (Aw) For FPGA Applications
Authors: Oliveira Duarte L. , Faria Lester A. , Lussari Eduardo 
Published: December 2020

Contemporary digital systems must be based on the “System-on-Chip – SoC” concept. An interesting style for SoC design is the GALS paradigm (Globally Asynchronous, Locally Synchronous), which can be used to implement circuits in FPGAs (Field Programmable Gate Arrays). However the implementation of asynchronous interfaces (asynchronous wrapper – AW) constitutes a major drawback for this kind of devices. Although there is a typical AW design style, which is based on asynchronous controllers providing communication between modules (called ports), port controllers are subject to essentialhazard when implemented in FPGAs. In this context, this paper proposes a new asynchronous GALS wrapper architecture, suitable for implementations in any kind of FPGAs. The proposed port controllers showed to be essential-hazard-free, not needing any special cares in implementation concerning to LUTs choice. Additional advantages of the proposed architecture are: total autonomy that synchronous modules achieve when interacting with the asynchronous wrapper; the ports can be synthesized in the direct mapping style (so without knowledge of asynchronous logic synthesis); and the ports interact with environment in Ib/Ob Mode, not needing a timing analysis. Simulation results show the applicability of the proposed architecture and lead to its practical implementations in FPGAs.
Selective and Anisotropic Dry Etching of Ge over Si
Authors: Castro Marcelo S. B. , Barnola Sebastien , Glück Barbara 
Published: December 2020

Inductively coupled plasma (ICP) etching of Ge with high selectivity over Si and anisotropic etched profiles using CF4, HBr, SF6, and Cl2 reactive gases has been studied. Because pressure and biased power should be the most important parameters to drive selectivity and etch profile, they were varied from 4 to 50 mTorr and from 0 to 50 W, respectively, so as to investigate their influence on process. Total gas flow (100 sccm) and source power (350 W) were initially held constant. Selectivity greater than 100:1 of Ge over Si was achieved using 100 % Cl2 etch gas at 50 mTorr and zero bias power but the profile of the etched features was isotropic. With the addition of N2 to the feed gas (Cl2) the profile became more anisotropic. A three steps ICP etch process was developed with a final Ge/Si etch selectivity of 5:1 and anisotropic profiles.
Drain Current and Short Channel Effects Modeling in Junctionless Nanowire Transistors
Authors: Trevisoli Renan D. , Doria Rodrigo T. , De Souza Michelly , Pavanello Marcelo Antonio 
Published: December 2020

Junctionless nanowire transistors (JNTs) are considered promising for the sub-20 nm era, since they provide a great scalability without the need for rigorously controlled doping techniques. In this work, the modeling of triple-gate JNTs is addressed, focusing on the short-channel effects. Analytical expressions for the subthreshold slope, threshold voltage roll-off and drain induced barrier lowering are presented. The model is validated using tridimensional numerical simulations.
Table of Contents and Foreword
Authors: Pavanello Marcelo Antonio , Kastensmidt Fernanda 
Published: December 2020

In this issue of JICS some of the papers on this issue have been selected from the presented at SBCCI2013 (26th Symposium on Integrated Circuits and Systems Design), which has been held in Curitiba, Brazil, in 2013. Among the contributions presented at this conference, only a few best rated were selected by the JICS Editorial Board and have been invited to submit an extended version to the Journal. These extended papers have passed through the usual reviewing process before acceptance. In addition to the best papers presented at the mentioned conference, spontaneous submissions passed through the usual reviewing process and have been accepted as regular papers. We would like to thank the authors for their effort in preparing these high quality papers, as well as the reviewers for their valuable contribution on paper evaluation and selection, which guarantees the scientific level of this issue. We sincerely hope that JICS readers will enjoy these contributions.Marcelo Antonio Pavanello - JICS Editor-in-chief Fernanda Kastensmidt - JICS Co-Editor
Reliability Analysis of 0.5μm CMOS Operational Amplifiers under TID Effects
Authors: Cardoso Guilherme S. , Balen Tiago R. , Lubaszewski Marcelo S. , Gonçalez Odair L. 
Published: December 2020

Analog integrated circuits operating in radiation environments. In previous irradiation experiments performed on a switched-capacitor filter, implemented in a programmable analog array, it was observed a sudden recovery of the device performance during the irradiation, while increasing the accumulated dose. In some cases the considered performance parameters (such as the total harmonic distortion) may even be enhanced if compared to the pre-irradiation measurements, in specific accumulated dose intervals. This behavior is associated to partial inactivity windows in the internal components of the device. Spice simulations considering two complementary architectures of a simple CMOS Operational Amplifier (OpAmp) are performed, aiming to understand the origins of this effect. Results indicate that shifts on the operating point of the amplifier building blocks are responsible for the degradation and recovery of the OpAmp performance. Results also show that specific architectures, as well as, application constraints (such as the external feedback and the input signal amplitude and frequency) may result in different robustness levels related to the linear applications of the OpAmps in radiation environments.
Drop of Thermal Contact Resistance between Multi-Layer Graphene and Metals by Laser Annealing
Authors: Ermakov Victor A. , Vaz Alfredo R. , Alaferdov Andrei V. , Moshkalev Stanislav A. 
Published: December 2020

Significant drop of thermal contact resistance between a graphene flake and metal electrodes was shown as a result of laser annealing. The improvement of thermal contacts of initially rough metal electrodes is attributed to local melting of the metal surface caused by laser heating followed by increasing of real metal-graphene contact area.
Love Wave Sensor Based on Thin Film Molecularly Imprinted Polymer: Study of VOCs adsorption
Authors: Hallil H. , Omar Aouled N. , Plano B. , Delépée R. , Agrofoglio L. , Dejous C. , Rebière D. 
Published: December 2020

The overall objective of this work is to develop and to validate a quantitative, non-invasive diagnosis tool to monitor the efficiency of colorectal cancer chemotherapy. This paper deals with the validation of a molecularly imprinted polymer (MIP) thin film’s coating process, allowing high sensitivity of the resulting microsensor. After description of the Love wave sensor and of the MIP coating process, the functionality of the resulting device is proved with electrical characterization. Deep characterization of the thin film - morphology and print effect - is proposed, based on dynamical responses observed under exposure to different vapors. Results point out a good reproducibility of polymeric films. MIP layers increased responses of sensors to vapors by a factor 3 to 4 compared to bare devices or to devices coated with non-imprinted polymer (NIP). For example, exposure to 4000mg/m3 (2126ppm) of ethanol in nitrogen induced a frequency shift of -1.4/-0.4kHz with MIP/NIP-coated sensor, respectively.
Strategi Jepang Dalam Mereformasi Administrasi : Literature Review
Authors: Seno Ramadhani Haryo 
Published: December 2020

Focus of this research is to describe administrative reform process in one country, by finding the strategies of administrative reform in transforming and developing administration system in Japan. Descriptive qualitative analysis by study literature and examining secondary data as a data collection method use in this research. The result show that there are three strategies successful of administrative reform: (1) reorganizations; (2) deregulations; and (3) decentralization. The conclusion of this research that are government must used its power to achieve the stated reform goals. The Japanese government has the courage non-populist policies by dissolving state ministries, recruiting civil servants, undertaking privatization, and gradually a bureaucratic culture that tends not to be innovative. Every change in Japan is preceded by an institutional order that is responsible for a particular problem and is ad-hoc (temporary). This shows that how Japan is controlled for certain problems by having targets that must be resolved. Realizing that political support is inevitable and even a necessity in implementing administrative reform in Japan.
FREUDIAN TRIPARTITE ON DETECTIVE FICTION: THE TOKYO ZODIAC MURDERS
Authors: Amelia Dina , Daud Jepri 
Published: December 2020

Sigmund Freud’s theory of psychoanalysis developed in the 1940s as mentioned in Barry (2002) was applied to unravel the unconscious psyche of a fictional character in the novel Tokyo Zodiac Murders by Soji Shimada. Tokiko, the villain in the story has been experiencing abusive treatment from her father, stepmother, and stepsisters. The traumas she has received during her life has led to her decision to commit a well-prepared murder that could not be solved for decades. The qualitative method helps to identify and elaborate every component of the unconscious psyche of the villain, especially the Id, Ego, and Super-Ego in the story. The findings show that Tokiko’s Ego keeps her alive and survive to plan revenge on her family. Meanwhile, her Super-Ego fails to restrain herself from feeding her desire to conduct the vicious murder. Therefore, Tokiko’s Id is responsible for her action which is triggered by her devastating experiences. Her character remains committed and faithful to herself.
Blood transfusion practices in a tertiary care hospital in Nepal
Authors: Shrestha Amar Narayan , Aryal Barun Babu , Poudel Ayusha , Poudel Shraddha , Shrestha Shreya , Adhikari Anurag , Chhetri Prakrit 
Published: December 2020

Background: Blood transfusion is an integral part of patient management. Good transfusion practice guided by standard protocols is considered ideal for optimal use of resources and manpower. Cross-match requests disproportionate to the actual requirement causes overestimation of blood usage and potential wastage. This study aims to determine the crossmatch, transfusion, and utilization rates for blood using transfusion index, and cross-match to transfusion ratio in the various departments of the hospital for the evaluation of transfusion practices.
Materials and Methods: A retrospective study was conducted using the records from the hospital blood bank for 12 months to obtain transfusion and cross-match records from various clinical units. Transfusion requests, units cross-matched, and completed transfusions were used to calculate the cross-match to transfusion ratio, and transfusion index for each department.
Results: A total of 5156 units of blood were cross-matched for 3437 transfusion requests, out of which 3752 were transfused, giving a mean cross-match to transfusion ratio of 1.37. The non-usage of blood was 27.2% and the transfusion index stood at 1.09. The cross-match to transfusion ratio for the individual clinical units ranged from 1.75 (Surgery) to 1.14 (Medicine).
Conclusions: The cross-match to transfusion ratio and transfusion index were within recommended ranges, showing good utilization and low blood wastage. The establishment of a blood ordering protocol via a multidisciplinary approach should be considered to further optimize blood transfusion practices.
Analyser les formules pragmatiques de la conversation : problèmes de méthodes dans une perspective lexicographique
Authors: Grossmann Francis , Krzyżanowska Anna 
Published: December 2020

Through some examples, the paper illustrates the lexicographic approach implemented in the Polonium PRAGMALEX project, which aims to provide a pragma-semantic description of conversational formulas in French with their equivalent in Polish and Italian, highlighting their pragmaticvalues. The sociolinguistic or cultural factors that determine their use in the discourse are also made more explicit.
Ça roule ! — un pragmatème à décortiquer. Une étude contrastive franco-italienne
Authors: Wylecioł Ryszard , Adamczyk Karolina 
Published: December 2020

The aim of this paper is to present, after a short introduction to what pragmateme, or pragmatic phraseologism, is and how we understand it as a fixed expressive phrase with affective and emotive load, the results of the Polonium project entitled “Pragmatemes in contrast: from linguistic modeling to lexicographic coding”. In particular, we want to divulgate information concerning analysis of the French pragmateme Ça roule ! and its Italian corresponding phrase A posto!. Furthermore, equivalents of both pragmatemes are also investigated. However, as we consider cognitive linguistics tools as those which may give greater response to what the meaning of pragmatemes is, we broaden the project results with analysis of the trajector-landmark relation and of conceptual metaphors, that are the basis of the imagery for the aforementioned linguistic elements. In this way, we may also try to discern similarities and discrepancies in how close but still different cultures depict the same scene in similar speech events.