Open AccessFatigue Life Estimation of Solid-state Drive due to the Effect of Dummy Solder Ball under Forced Vibration
Author(s) -
이주엽,
장건희,
장진우
Publication year - 2015
Publication title -
han-guk soeum jindong gonghakoe nonmunjip/han'gug soeum jindong gonghaghoe nonmunjib
Language(s) - English
Resource type - Journals
eISSN - 2287-5476
pISSN - 1598-2785
DOI - 10.5050/ksnve.2015.25.3.176
Subject(s) - vibration , soldering , ball (mathematics) , materials science , solid state , metallurgy , engineering , mathematics , acoustics , physics , engineering physics , mathematical analysis
This research proposes a method to estimate the fatigue life of SSD(solid-state drive) due to the effect of dummy solder ball under forced vibration. A finite element model of the SSD was developed to simulate the forced vibration and a modal testing was performed to verify the developed finite element model. Fatigue life of the SSD under vibration was experimentally determined according to JEDEC standard in which the SSD was excited by a sinusoidal sweep vibration within the narrow frequency band around the first natural frequency until the SSD fails. Basquin’s equation was introduced to estimate the fatigue life of the SSD due to the effect of dummy solder balls. It shows that the dummy solder balls are effective elements of the SSD to increase the fatigue life of an SSD by increasing 700 times of the fatigue life of the given SSD