The cross-sectiontest and dye&pry test are adopted to study the failure mechanism of CSP lead-free solder interconnection.
采用剖样实验和染色实验对无铅焊料微互连的失效机理进行分析。
2
The method using interference rib is introduced, which simulate the wind vibration of round cross-section rod via the test, and gain some effect to reduce the vibration.
Freezing and thawing test shows that the figuration and cross-section of cement-based materials (paste, mortar and concrete) are different after they damage because of their different pore structures.