New Large Size HDI PCB are generally manufactured using the stack-up method, and the more times the layers are stacked, the higher the technical grade of the board. Large Size HDI PCB is made in china.These are conducive to the use of advanced assembly technologies, and their electrical performance and signal accuracy are higher than those of traditional PCBs. In addition, Large Size HDI PCB have better performance in improving radio frequency interference, electromagnetic interference, electrostatic discharge, heat conduction, etc. Hongxinda Cooperation offer cheap Large Size HDI PCB, inquiry is welcome.