WebThermo-mechanical fatigue reliability optimization of PBGA solder joints based on ANN-PSO [J]. ZHOU Ji-cheng, XIAO Xiao-qing, EN Yun-fei, 中南大学学报（英文版） . 2008 ,第005期 WebHowever, the thermo-mechanical reliability of the BGA solder joints challenges the device functionality amidst. Ball grid array (BGA) packages have increasing applications in …

Thermal Fatigue Prediction for Leadless Solder Joint of TFBGA

WebFatigue life prediction models have been investigated based on a diverse range of solder joints, all the models require some specific geometry and material related information to establish constitutive equations [].Some experts concentrate on the damage mechanisms and conditions, for example: electronic products may experience thermal cycle, power, … WebAbstract. This paper presents a fundamental investigation of the fatigue and thermal fatigue characteristics, with an emphasis on the microstructural development during fatigue, of … train like a jedi

Creep-Fatigue Behavior of Microelectronic Solder Joints

WebJun 1, 1990 · The combined effects of elastic and inelastic strains on solder joint reliability are investigated. Experimental data from high-cycle fatigue tests of solder are combined … Solder damage models take a physics-of-failure based approach by relating a physical parameter that is a critical measure of the damage mechanism process (i.e. inelastic strain range or dissipated strain energy density) to cycles to failure. The relationship between the physical parameter and cycles to failure typically takes on a power law or modified power law relationship with material dependent model constants. These model constants are fit from experimental test… Web1.Introduction. It is a common belief among electronic packaging professionals that differential thermal expansion between constituting members induces predominantly shear stress/strain in solder joints; and the magnitude of which can be lowered by increasing the shear compliance of solder joints; and this can be most effectively increased by … train like a pro