PhD Thesis Defense by Mercedes Saludes Tapia, predoctoral researcher at IMB-CNM (MESSI Group)
Supervisors:
- Dr. Mireia Bargalló González
- Dr. Enrique Alberto Miranda Castellano
Acting as tutor: Dr. Enrique Alberto Miranda Castellano
Panel of examiners:
- President: Dr. Cirera Hernández, Albert
- Secretary: Dr. Porti Pujal, Marc
- Vocal: Dr. Rodríguez Montañés, Rosa
- Substitute: Dr. Nafria Maqueda, Montserrat
- Substitute: Dr. Estradé Albiol, Sònia
University: Universitat Autònoma de Barcelona
PhD Programme in Electrical and Telecommunication Engineering
About the thesis
This thesis investigates HfO₂-based resistive switching devices through electrical/physical characterization, statistical analysis (including Weibull and clustering), and compact modeling. It evaluates how geometry, defects, and environment affect variability and degradation, revealing the physical origins of device dispersion. To reproduce these behaviors, the QMM and DMM models are adapted—incorporating stochastic effects and multi-filament interactions—and applied to CRS structures for logic-in-memory simulations. Overall, the work connects fabrication, physical degradation, and modeling to optimize the reliability and scalability of these memristive devices.