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In the past few decades, PCB size has become smaller and smaller, and PCB engineers have more reasons to use HDI PCB than ever before.
With the rapid increase of the aging population year by year, people's emphasis on health is also increasing.
In recent years, resin plug holes have become very popular in the PCB industry and have a wide range of applications. Especially some products with high layers and thick boards have a higher use rate of resin plug holes. So what is a resin plug hole? What are the benefits?