HDI: Abbreviation for high Density interconnection, high-density interconnection, non-mechanical drilling, micro-blind ho
1. Storage environment and transportation: This is the link between the circuit board factory and the patch factory. Gene
The materials used by enterprises in the production of circuit boards contain many harmful substances, and many harmful s
1. Report the results of the work The leader who lifts the heavy weight is the favorite. When reporting work, please rem
First, it is equal length. When designing a differential line, pay attention to making the lengths of the two signal line
After the customer's plug-in test, it is found that the via hole (via hole) is not connected. The test can be carried