Abstract:This study has investigated the solder joint reliability for 2000 pin class Flip-chip BGA (FC-BGA) mounted on PCB (printed circuit board), through the thermal cycle evaluation and FEM (Finite Ele ment Method) analysis. Owing to the stress of Z-axis direction, the fracture occurred at the solder ball under the chip area of FC-BGA. It is assumed that one key factor determining solder joint life is the initial deformation of FC-BGA after mounting on the PCB. Increasing the stiffness of FC-BGA en able to decrease … Show more
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