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With more reliability requirement increasing in the IC packaging for mobile product, the industry has been searching for a more cost-effective and time-effective way to achieve the evaluation task. In light of the long cycle time of thermal cycle testing, we investigated the mechanical fatigue test instead of thermal cycle testing for shortening test time. The 4-point cyclic bending test is considered...
The benefits of using the low Ag solder in CSP package has been known in terms of the performance due to its intrinsic characteristic. In this study, SAC alloy dopanted D1 and D2 are selected to compare with the general solder alloy, SAC105, in terms of thermal fatigue fracture performance. The 0.5mm-pitch TFBGA packages on Halogen-free FR4 PCB treated with 150 C thermal aging at different period...
The major purpose of the mechanical stress screening is to screen out the products which have potential defects which lie in materials, design, process, and operation etc. If the screening is thorough before the products are shipped, the rate of the abnormal failure at the users' side can be eliminated or lowered significantly. The manufacturing lot which goes through appropriate screening will have...
In the study, instead of electrical resistance monitoring in JEDEC JESD22-B111 for mechanical shock testing of handheld electronics, a proprietary strain-controllable dynamic bending method is applied to verify the effects of lead free SnAgCu solder ball with different dopant on the board level reliability of green TFBGA package. The result shows the strain-controllable dynamic bending method can...
With more reliability requirement increasing in the IC packaging for mobile product, the industry has been searching for a more cost-effective and time-effective way to achieve the evaluation task. In light of the long cycle time of thermal cycle testing, we investigated the mechanical fatigue test instead of thermal cycle testing for shortening test time. The 4-point cyclic bending test is considered...
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