PCB hole copper
Hole copper is the hole with metallization requirements, by electroplating the hole with a layer of copper, so that the two sides of the hole can be conducted, the layer of copper in the hole is called hole copper.
PCB hole copper fracture reason
1. Local copper thickness caused by bubbles or sundries in the hole is not enough, and copper fracture in the hole after high temperature;The solution is to keep potions in the hole unblocked;
2. Copper plating itself adhesion is not enough, resulting in high temperature fracture;The solution is to keep the light agent in control when electroplating.
3. Hole wall glass fiber pull caused by the hole copper rough, fracture after high temperature;The solution is to optimize drilling parameters to ensure qualified hole thickness.
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Post time: Sep-05-2019