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For power module, the reliability evaluation of thermal fatigue life by power cycling has been prioritized as an important concern. Since in power cycling produces there exists non-uniform temperature distribution in the power module, coupled thermal-structure analysis is required to evaluate thermal fatigue mechanism. The thermal expansion difference between a Si chip and a substrate causes thermal...
Interconnect technology is the key to the reliability of electronic devices. Electronic components are soldered to a printed circuit board (PCB). Major failure mode is thermal fatigue of solder joints since there is a big difference in the coefficient of thermal expansion (CTE) between soldered components. Underfill resin is used to improve the interconnect reliability. Resin can relief stresses in...
Interconnect technology is the key to the reliability of electronic devices. Electronic components are soldered to a printed circuit board (PCB). Major failure mode is thermal fatigue of solder joints since there is a big difference in the coefficient of thermal expansion (CTE) between soldered components. Underfill resin is used to improve the interconnect reliability. Resin can relief stresses in...
For power electronics devices, the reliability of thermal fatigue induced by power cycling has been prioritized as an important concern. Since power cycling produces non-uniform temperature distribution in the device, coupled thermal- structure analysis is required to evaluate thermal fatigue mechanism. The thermal expansion difference between a package and a substrate causes thermal fatigue. Many...
Recently, the electronic device equipments using a lot of semiconductors are widespread to all industrial fields. Solder joints are used to mount the electronic chips, such as ceramic resistors and capacitors, on the printed-circuit boards in almost all electronic devices. However, since in many cases the thermal expansion coefficients of electronic parts and PCBs have mismatch, cyclic thermal stress...
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