Description:
Micro vias are blind vias in HDI circuit boards. They usually have hole diameters <=150µm, pads <=350µm and drilled holes (mostly by laser) with an aspect ratio of almost 1:1.
Description:
Micro vias are blind vias in HDI circuit boards. They usually have hole diameters <=150µm, pads <=350µm and drilled holes (mostly by laser) with an aspect ratio of almost 1:1.