High Density Interconnect (HDI) PCBs are neat types of circuit boards that has lots of tiny links. They made for devices need to be small yet powerful. Smartphones or tablets use HDI PCBs so all the tech fits in tight space. At UC, we creates these HDI PCBs to help make electronics smaller, lighter and faster. The design on these boards allow way more connections in small area than regular PCBs. And this tech is key for many gadgets we use every day.