HDI PCB

ODM Multilayer FR4 Tg170 PCB Circuit Board For Wearable Devices

Tg170 Multilayer Board(3+4+3) HDI PCB Wearable Devices ♦ What is HDI PCB? HDI (High Density Interconnect) PCB is a high-density circuit board constructed by micro blind buried via technology, and uses a build-up process to achieve three-dimensional interconnection of inner and outer layer circuits. The core of its manufacturing lies in the use of laser drilling and electrochemical hole filling processes to form micron-level conductive paths between layers, so that each layer