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Flexible printed circuit (FPC) is extensively used in portable electronic products because of its excellent flexibility and twistability. Compared with rigid boards, FPC usually experiences much larger deformation in its usages. However, most available packaging-components at the moment are rigid, FPC-contained products may cause failures under accidental mechanical conditions, such as drop, bending...
In this paper, a wrist device conception was selected to study the reliability of flexible devices by drop test simulation. In the conception device, all of the components cannot be made flexible immediately. Some of them are still rigid, such as the ball grid array (BGA), the connector, and some other big components like the vibrator. The reliability of the device, where such rigid components are...
Flexible display module reliability were investigated herein with experiments, such as bending, twisting and ball drop. The pretests of all the three experiments were carried out firstly to primarily understand the flexibility and mechanical behavior of the display. Based on the pretest results, the corresponding fatigue test setup method and process were put forward. Then, the fatigue tests were...
With the miniaturization of mobile electronic devices, the flexible electronics are being used more and more in the industry, such as the flexible printed circuit (FPC) and flexible displays (Ptchelintsev, 2006). With the products becoming flexible and bendable, the reliability could become a serious issue in some cases if not designed properly. Examples of such concerns are bending and impact reliability...
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