Maria Theresa G. de Leon

Maria Theresa G. de Leon is a Professor at the UP EEE Institute. Her main research interests are analog/RF integrated circuit design and testing, energy harvesting, microelectromechanical systems, and device microfabrication. She received her BS and MS degrees from the University of the Philippines, Diliman and her PhD degree from the University of Southampton, United Kingdom. Her PhD research focused on improving the efficiency of solar thermoelectric generators by employing solar concentration.

Contact Information

  • Email: theresa.de.leon@eee.upd.edu.phremovethis
  • Phone: +63 2 8981 8500 local 3380

Education

Research Interests

  • Microelectromechanical systems
  • Energy harvesting
  • Microfabrication techniques
  • RF and analog integrated circuits
  • On-wafer device characterization

Research Projects

  • Project Staff. PreXDeTEch TB: Low-Cost TB Microarray-AI Detection Technology Diagnosis of MDR and Pre-XDR Tubercolosis; funded by DOST-PCHRD and US-NIH (January 2024 – present)
  • Project Staff. Semi-Transparent Enhanced Alternative Lightweight Technology Harvester Photovoltaic Cell Prototype (STEALTH); funded by UPERDFI (September 2023 – present)
  • Project Leader. Center for Integrated Circuits and Devices Research (CIDR) Project 2: Model-Driven Co-Design of MEMS-Based Sensors and Interface Circuits; funded by DOST (August 2022 – present)
  • Project Staff. UP Center for Air Quality Research in Urban Environments (CARE) Project 1; funded by DOST (May 2022 – present)
  • Project Leader. Vibrational Energy Harvesters for Resilient Sensor Nodes (VERSe); funded by CHED-PCARI (June 2018 – Dec 2021); established the UP Diliman Microfabrication Facility
  • Project Staff. Smart Plant Production in Controlled Environments (SPICE) Project 2: Sensor-Based Monitoring and Analytics for Smart Hydroponics; funded by DOST-PCIEERD (January 2018 – September 2021)
  • Project Staff. Resilient Sensory Swarms for Smart Energy and Environmental Monitoring (RESE2NSE); funded by CHED-PCARI (January 2016 – October 2020)
  • Project Leader. The Smartwire Program (Project 2): Integrated Energy Harvesting, Storage, and Regulation for the Smartwire Sensor Node; funded by DOST-PCIEERD (April 2015 – December 2016)
  • Program Leader. Chip Design Program for ERDT’s Semiconductor and Electronics Track (RF CMOS IC Design project); funded by ERDT through the DOST-GIA (September 2008 –January 2010)
  • Proponent. Testing and Characterization of Fabricated Operational Amplifiers Implemented in a 0.25 μm CMOS Process; funded by UPERDFI under the FRIA grant (November 2006 – May 2008)
  • Proponent. Characterization of a RF CMOS Low-Noise Amplifier Implemented in a 0.25-um CMOS Process; funded by UPERDFI under the FRIA grant (November 2005 – September 2006)
  • Project Leader. Modeling of MOSFET Transistor Behavior at Radio Frequencies; funded by DOST-PCASTRD (October 2004 – October 2005)

Select Publications

More publications listed here.

  • R. Pangilinan, L. Pengson, C. Aquino. M. Vasquez, M. de Leon, “Plasma-based Deposition Techniques of ZnO Thin Films for MEMS-based Piezoelectric Accelerometers,” International Symposium of the Vacuum Society of the Philippines (ISVSP) 2024, January 17-19, 2024, Baguio City. (invited talk)
  • A. Ontoria, R. Pangilinan, L. Montefalcon, M. Vasquez, M. de Leon, “Preparation of Antimony Telluride and Bismuth Telluride Films via Oblique Angle Deposition,” International Symposium of the Vacuum Society of the Philippines (ISVSP) 2024, January 17-19, 2024, Baguio City.
  • S. Mindoro, J. Cabuyadao, A. Leynes, M. Ralota, Z. Sanchez, J. Hizon,  M. Rosales, and M. de Leon, “A CMOS Power Management Unit with Undervoltage Lockout Circuit as Startup for Piezoelectric Energy Harvesting Applications,” International System-on-Chip Design Conference (ISOCC) 2021, October 6-9, 2021, Korea (presented virtually)
  • Arce, Em Jen;  de Leon, Maria Theresa; Rosales, Marc; Yamaguchi, Tomihiro; and Vasquez, Magdaleno Jr, “Synthesis of Nanostructured Zinc Oxide Films,” 18th International Conference on Thin Films, November 22-26, 2020, Virtual conference.
  • J. Manzano, M. Vasquez, M. Rosales, and M. de Leon, “Numerical Modeling of Surface Roughness Effects on the Natural Frequency of a Silicon Cantilever“, International Conference on Energy Harvesting, Storage, and Transfer (EHST’20), November 15-17, 2020, Virtual conference.
  • Grech, David; Tarazona, Antulio; de Leon, Maria Theresa; Kiang, Kian; Zekonyte, Jurgita; Wood, Robert; and Chong, Harold, “A Quasi-Concertina Force Displacement MEMS Probe for Measuring Biomechanical Properties,” Sensors and Actuators A: Physical, vol. 275, 1 June 2018, pp 67-74..
  • Grech, David; Tarazona, Antulio; de Leon, Maria Theresa; Kiang, Kian; Zekonyte, Jurgita; Wood, Robert; and Chong, Harold, “Large Gauge Factor of Hot Wire Chemical Vapour Deposition In-Situ Boron Doped Polycrystalline Silicon,” Materials Research Express (2016), vol. 3 no. 4.
  • de Leon, Maria Theresa; Tarazona, Antulio; Chong, Harold; Kraft, Michael, “Design, Modeling, Fabrication, and Evaluation of Thermoelectric Generators with Hot-Wire Chemical Vapor Deposited Polysilicon as Thermoelement Material,” Journal of Electronic Materials, 2014, vol. 43 issue 11, pp 4070-4081.
  • de Leon, Maria Theresa; Chong, Harold; Kraft, Michael, “Solar Thermoelectric Generators Fabricated on a Silicon-on-Insulator Substrate,” Journal of Micromechanics and Microengineering, vol. 24 (2014) 085011.
  • de Leon, Maria Theresa; Chong, Harold; Kraft, Michael, “Design and Modelling of SOI-Based Solar Thermoelectric Generators,” Procedia Engineering 47(2012): 76-79.
  • de Leon, Maria Theresa; Taatizadeh, Pouyah; Kraft, Michael, “Improving the Efficiency of Thermoelectric Generators by Using Solar Heat Concentrators,” Proceedings of the 21st Micromechanics and Microsystems Europe Workshop, 26-29 September 2010, Enschede, The Netherlands.
  • dela Cruz, Sherlyn; delos Reyes, Mark Gerard; Alvarez, Anastacia; de Leon, Maria Theresa; Roque, Christian, “Design and Implementation of Passive RF-DC Converters for RF Power Harvesting Systems,” TENCON 2010 – 2010 IEEE Region 10 Conference, 21-24 November 2010, Fukuoka City, Japan.
  • Alunan, Lendl; de Leon, Maria Theresa; Roque, Christian, “System-Level Simulation and Analysis of a WiMAX Direct-Conversion Receiver in 90nm CMOS,” TENCON 2010 – 2010 IEEE Region 10 Conference , 21-24 Nov. 2010, Fukuoka City, Japan.
  • Gomez, Frederick; de Leon, Maria Theresa, Roque, Christian, “Active Balun Circuits for WiMAX Receiver Front-End,” TENCON 2010 – 2010 IEEE Region 10 Conference, 21-24 Nov. 2010, Fukuoka City, Japan.
  • Almazan, Sherwin; de Leon, Maria Theresa, “A 3rd Order Butterworth Gm-C Filter for WiMAX Receivers in a 90nm CMOS Process,” Proceedings of the 12th International Conference on Computer Modeling and Simulation, 2010, Cambridge, United Kingdom.
  • Lorenzo, Michael Angelo; de Leon, Maria Theresa, “Comparison of LNA Topologies for WiMAX Applications in a Standard 90nm CMOS Process,” Proceedings of the 12th International Conference on Computer Modeling and Simulation, 2010, Cambridge, United Kingdom.

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