薄芯板尺寸稳定性控制

Dimensional stability control of ultrathin core

任意层互连板件制作过程中,板件变形导致盲孔底部连接盘偏是最常见的失效模式,特别第一次薄芯板压合,尺寸稳定性控制极有难度。本文通过研究板料、芯板配本及压合参数,分析其对拼板整体变形的影响,从而得出薄芯板尺寸稳定性控制的最佳方案。

During ALIVH PCB manufacturing process, the misregistration of target pad due to the PCB dimensional change is the most common failure modes. Especially, when the first pressing cycle, dimensional stability control of the ultrathin core is very difficult. By means of analyzing laminate material, core stack-up and press parameter, which affect the PCB dimensional stability, this article sheds light on the best method of dimensional stability control.