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Research at the Integrated Circuits Laboratory encompasses modeling, characterization and design of RF, analog and digital integrated circuits with a strong emphasis on transistor level CMOS design. Our group was a pioneer in the development of switched-capacitor and continuous-time circuits fully compatible with digital technology, and charge-based compact MOSFET models(ACM2).
Current research in analog circuits focuses on modular, programmable circuits for ultra-low-voltage and low-power applications, including energy harvesting, power management, integrated sensors and implantable devices.
News: (June 6, 2024) Prof. Carlos Galup-Montoro lectured a remote short course of 4 hours entitled "Ultra-low-power CMOS circuit design with very low supply voltage" to RESMIQ members at Montréal, Canada. (May 19-22, 2024) We are glad to announce that the Integrated Circuits laboratory had a significant presence at the IEEE International Symposium on Circuits and Systems 2024 (ISCAS 2024) held in Singapore. Our team delivered four presentations at the conference: Professor Carlos Galup-Montoro presented the paper "A design-oriented single-piece short-channel MOSFET model" in the special session "Inversion Coefficient & Ratio-based (gm/ID, gm/Cg) Design Methodologies". This special session in ISCAS 2024 was organized by Prof. Carlos Galup and Prof. Sylvain Bourdel, Professor at the Institut Polytechnique de Grenoble (Grenoble INP) in France, within the framework of the CAPES/STIC-AMSUD project. Ph.D. candidates Deni Germano Alves Neto and Gabriel Maranhão presented a live demonstration of the ACM2 MOSFET model using open-source tools. They also presented their thesis work in the Ph.D. forum, which led to Gabriel being rewarded with the ISCAS Predoctoral Achievement Grant. 
 (May 11-19, 2024) Within the scope of the STIC-AmSud cooperation, Prof. Fabian Leonardo Cabrera Riano visited the TIMA laboratory in France from May 11 to 19, 2024. During his visit he gave two lectures, "Design of CMOS frequency synthesizers" and " Wireless power transfer to miniaturized implants" for an audience of professors and students of the Institut Polytechnique de Grenoble (Grenoble INP). (February 28, 2024) Prof. Carlos Galup Montoro delivered a keynote entitled "Charge-based transistor models facilitate the IC design process and the designer education" at the IEEE LASCAS Conference, Punta del Este, Uruguay. (July 24 - August 11, 2023) Professor Mario Raffo, from PUC (Pontificia Universidad Católica) - Peru visited LCI from July 24 to August 11, 2023, for a training in the use of Electronic Design Automation tools for the project "Compact MOSFET model for instruction and design of wireless autonomous chips in advanced processes." This visit is related to the cooperation agreement "STIC-AmSud", between PUC - Peru, Udelar - Uruguay, UFSC - Brazil, and UGA - France. (July 06-14, 2023) Within the scope of the STIC-AmSud cooperation, Prof. Márcio Cherem Schneider visited Grenoble from July 06 to 14, 2023. During his visit he lectured a short course entitled "The 5-DC-parameter Advanced Compact MOSFET (ACM) model" for professors and students of the Université Grenoble Alpes. During his sojourn, Prof. Schneider took the opportunity to discuss the research of two PhD candidates. (June 28, 2023) A proud moment for our Integrated Circuits Laboratory. We are excited to receive the best paper award at the 21st IEEE Interregional NEWCAS 2023 Conference for our paper entitled "A 5-DC-Parameter MOSFET Model for Circuit Simulation in QucsStudio and Spectre". The paper presents a minimalist MOSFET model for circuit simulation with only five DC parameters written in Verilog-A. The simulation of some basic circuits using the proposed 5-DC-parameter MOSFET model matches the simulation using the BSIM/UTSOI models for the benefit of a much more straightforward set of DC parameters. THE ACM-5PM can be used in open-source or commercial circuit simulators due to the universality of the Verilog-A language. Kudos to Deni Germano Alves Neto, Cristina Missel Adornes, Gabriel Maranhão, Mohamed Khalil Bouchoucha, Manuel J. Barragan, Andreia Cathelin, Márcio Cherem Schneider, Sylvain Bourdel and Carlos Galup-Montoro for this great work and collaboration. NewCAS Presentation  (Oct 27, 2021) The paper "Bridging the gap between design and simulation of low voltage CMOS circuits" was presented at IEEE Nordic Circuits and Systems Conference (NorCAS 2021) by Cristina Missel Adornes, one of the coauthors and who recently received the Master's degre in the same subject of the paper. The paper is also coauthored by Deni Germano Alves Neto, graduate student of the Integrated Circuits Laboratory, and professors M rcio Cherem Schneider and Carlos Galup-Montoro. (Apr 2, 2018) Sylvain Bourdel, Professor at the Institut Polytechnique de Grenoble (Grenoble INP), France, came to UFSC, from September 2017 to February 2018, for a sabbatical journey to work at LCI on the design of RF circuits using the all-region compact MOSFET model. (Mar 14, 2016) Professors Carlos Galup-Montoro and Marcio Cherem Schneider served as Program Chairs of the VII IEEE Latin-American Symposium on Circuits and Systems (LASCAS 2016). LASCAS is the international symposium and flagship event of the IEEE Circuits and Systems Society in Latin America. Its seventh edition took place on Ingleses Beach, Florianopolis, Brazil, from February 28 to March 02. (Mar 14, 2016) Franco Maloberti, Professor of Microelectronics and Head of the Micro Integrated Systems Group, University of Pavia, Italy and President Elect of the IEEE Circuits and Systems Society, visited the Integrated Circuits Laboratory at UFSC. His professional expertise is in the design, analysis, and characterization of integrated circuits and analog digital applications, mainly in the areas of switched-capacitor circuits, data converters, interfaces for telecommunication and sensor systems, and CAD for analog and mixed A/D design. As part of the program of his visit to UFSC, he gave the lecture entitled the World of Analog Micro-Power, in which he outlined the increasing importance of low-power electronics. (Mar 14, 2016) Within the framework of the CAPES/CAPG 031/2014 program, Professor Adri n Faig n of the Faculty of Engineering, University of Buenos Aires (FI _UBA), Argentina, spent a 6-day period at the Federal University of Santa Catarina. Professor Faig n, a prominent researcher at the National Council of Science and Technology (CONICET), is also Director of the Device Physics-Microelectronics Laboratory at FI-UBA. During his stay at UFSC, he gave a seminar entitled MOS Dosimetry. His research focuses on instabilities and radiation effects on gate dielectrics, and MOS dosimetry. (Sep 01, 2015) Dr. Marcio Bender Machado, a Ph.D. student with the Integrated Circuits Laboratory from 2010 to 2014, was awarded a plate for the best Brazilian Ph.D. Thesis of 2014 in Microelectronics - Design, CAD and Test of Integrated Circuits. The thesis, entitled Ultra-low-voltage oscillators with application to energy harvesting circuits, was advised by professors Carlos Galup-Montoro and Marcio Cherem Schneider. The award was granted to Dr. Bender Machado at the opening ceremony of Chip in Bahia, held in Salvador, Brazil. The award is jointly offered by the Brazilian Microelectronics Society (SBMicro) and CEITEC. (Sep 05, 2014) The paper entitled 10 mV - 1V step-up converter for energy harvesting applications received the best paper award of the 27th Symposium on Integrated Circuits and Systems Design - SBCCI 2014 (Chip in Aracaju). The paper is coauthored by M rcio Bender Machado, who recently was granted the Ph.D. degree in the same subject of the awarded paper, professors M rcio Cherem Schneider and Carlos Galup-Montoro, in association with Professor Mohamad Sawan from the cole Polytechnique de Montr al. (Aug 19, 2014) Within the framework of the Brazilian Science without Borders program, Professor Mohamad Sawan of the Electrical Engineering Department/ Polytechnique Montreal, following a 50-day period as visiting professor in 2013, spent another 10-day period in 2014 at the Federal University of Santa Catarina. Professor Sawan is a prominent researcher who, among many honors and awards, is an IEEE Fellow for his contributions to implantable medical devices. During his stay at UFSC he gave a seminar entitled Biosensors and Prostheses for Neurorecording and Neurostimulation and was member of the juries of a PhD thesis defense and a PhD qualification exam. During his stay in Florianopolis, Professor Sawan also visited two companies for the exchange of technical information. (Apr 01, 2014) Dr. Carlos Saavedra, a Professor at Queen's University, Kingston, Canada, visited the Integrated Circuits Laboratory on March 31. Professor Saavedra is an Associate Editor of the IEEE Transactions on Microwave Theory and Techniques and a member of the Technical Program Committee of the IEEE International Microwave Symposium. While at UFSC, Professor Saavedra gave a lecture entitled Foundational Concepts for the Design of Mixer RFICs and interacted with some students on the design of RF circuits. (Sep 25, 2013) Dr. Wouter Serdijn, a professor affiliated with the Delft University of Technology, The Netherlands, visited the Integrated Circuits Laboratory on September 20. Within the framework of the Distinguished Lectures program of the IEEE Circuits and Systems society, Professor Wouter Serdijn, an IEEE Fellow, gave a lecture entitled. (Circuits and systems for wearable and implantable medical devices)
LCI/EEL/CTC/UFSC
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