RT info:eu-repo/semantics/article T1 Thermomechanical Optimization of Three-Dimensional Low Heat Generation Microelectronic Packaging Using the Boundary Element Method A1 Vallepuga Espinosa, José A1 Cifuentes Rodríguez, Jaime A1 Gutiérrez Posada, Víctor A1 Ubero Martínez, Iván A2 Mecanica de los Medios Continuos y Teoria de Estructuras K1 Electrotecnia K1 Ingeniería de sistemas K1 Boundary element method K1 Elastic contact problem K1 Thermoelastic contact problem K1 Microelectronic packaging K1 Variable thermal contact resistance K1 Thermal interface material K1 3307.90 Microelectrónica K1 1207.02 Sistemas de Control AB [EN] This paper presents a simulation based on the boundary element method for the optimization of the thermomechanical behavior of three-dimensional microchip-dissipator packaging when the heat generation produced is medium-low. Starting from a basic architecture studied in the literature, different modifications affecting both elastic boundary conditions and the contact interface between the microprocessor and the heatsink are included and studied in order to improve heat dissipation. A nonlinear interface material is included at the interface of both solids. Thus, a thermal contact conductance as a function of the normal contact traction is simulated. Finally, all these improvements in both contact interface and boundary conditions are applied to study the maximum heat generation that this kind of architecture can efficiently dissipate, so that the microchip will not be damaged due to thermal deformations. PB MDPI LK https://hdl.handle.net/10612/19200 UL https://hdl.handle.net/10612/19200 NO Vallepuga-Espinosa, J., Cifuentes-Rodríguez, J., Gutiérrez-Posada, V., & Ubero-Martínez, I. (2022). Thermomechanical Optimization of Three-Dimensional Low Heat Generation Microelectronic Packaging Using the Boundary Element Method. Mathematics, 10(11), 1913. https://doi.org/10.3390/MATH10111913 DS BULERIA. Repositorio Institucional de la Universidad de León RD 13-may-2024