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摘要:
A standard board-level drop/impact test has been modeled as a beam system, and the proposed model was used to analyze the peeling stress in solder joints under static and dynamic loadings. The analyses have shown that the maximum peeling stress is located at the most outer side of the PCB. The maximum peeling stress obtained from static analysis is higher than that from the dynamic analysis. The stiffness ratio between the package and the PCB has significant influence on the peeling stress in solder joints, and the peeling stress tends to reach its maximum as the PCB and the package have identical bending stiffness.
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来源 :
Journal of Beijing University of Technology
ISSN: 0254-0037
年份: 2008
期: SUPPL.
卷: 34
页码: 47-51