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Four-point bending cycling as alternative for Thermal cycling solder fatigue testing

Book Contribution - Book Chapter Conference Contribution

This paper deals with an alternative testing approach for quantifying the life time of board level solder joint reliability of components. This approach consists of applying a relative shear displacement between component and Printed Circuit Board (PCB) through cyclic board bending. During the cycling, the temperature is kept constant, preferably at elevated temperature in order to fasten the creep deformation of the solder joint. This is done in a four-point bending setup which allows to apply an equal loading on all components lying between the inner bars. The scope of the paper is, firstly, to evaluate if the four point bending testing generates the same fatigue fracture as in thermal cycling; secondly, that the measured life times can be also predicted through finite element simulations; and thirdly if the technique can finally fasten the cycling frequency to gain testing time.
Book: 2016 17TH INTERNATIONAL CONFERENCE ON THERMAL, MECHANICAL AND MULTI-PHYSICS SIMULATION AND EXPERIMENTS IN MICROELECTRONICS AND MICROSYSTEMS (EUROSIME)
Pages: 1 - 5
ISBN:9781509021062
Publication year:2016
BOF-keylabel:yes
IOF-keylabel:yes
Authors from:Government, Private, Higher Education
Accessibility:Open