The PCB size is getting reduced and the operating parahe PCB size is getting reduced and the operating parameter of densely populated boards are keep on increasing which poses thermal effects in the Boards and substrates. It eventually affects performance of the interconnects. The Increase in component density in a reduced size of PCB and the corresponding increase in power causes excessive heat which lowers the overall electrical performance and reliability. Caliber Interconnects uses different thermal analysis tools to foresee the factor affecting interconnect performance and proposes cost effective solutions to overcome deep thermal effects by analyzing thermal boundary conditions and power dissipation.