PT - JOURNAL ARTICLE AU - Frivaldsky, Michal AU - Spanik, Pavol AU - Morgos, Jan AU - Glapa, Norbert TI - Optimized Thermal Simulation Model of Multilayer Printed Circuit Board DP - 2018 Mar 31 TA - Communications - Scientific Letters of the University of Zilina PG - 78--81 VI - 20 IP - 1 AID - 10.26552/com.C.2018.1.78-81 IS - 13354205 AB - Very thin multi-layers of Cu and epoxy compound in PCB (printed circuit board) make difficult to design computational meshes in finite element method simulation programs. Number of degrees of freedom in simulated system rapidly increases - it significantly extends simulation computational time. In this paper we propose substitution of the PCB in axial and radial direction with the composite structure with equivalent physical parameters of multilayer PCB.