基本上，其架构通常是有一层埠端重布层(I/O redistribution layer；RDL)、一层应力缓冲层(stress buffer layer)、一层 护层(passivation layer)及最后之植球或引脚部份。
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combined stress buffer layer 复合应力缓冲层
In order to reduce the expansion stress resulting from cement's expansion and prolong the life-span of porcelain insulator, a thin asphalt buffer layer is coated between the porcelain and the cement.
为了降低水泥膨胀所引起的膨胀应力，延长瓷绝缘子的使用寿命，在胶装时一般在瓷体和水泥之间涂一层沥青缓冲层。
Furthermore, the effect of solder ball layout and stress relax buffer layer material on the fatigue life of solder joints is studied.
最后探测锡球配置方式和缓冲层材料性质对于锡球疲劳寿命的影响，以获得高可靠度的封装结构。
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