由于V-Cut在原来的大板材上切割凹槽，所以V-Cut的位置容易变形。 2.1 材料、结构、图形对板材 变形的影响分析 PCB板是通过压制芯板和预浸料以及外铜箔而形成的。芯板和铜箔在压制时被加热并变形。变形量取决于两种材料的热膨胀系数（CTE）。铜箔的热膨胀 ...

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At close: January 24 at 4:00:02 PM EST ...