General Information for High density pcb (HDI PCB)
HDI pcb is the abbreviation for High Density Interconnect pcb or High Density pcb.An HDI PCB is defined as a printed circuit board with a higher wiring density per unit area than a conventional PCB.
HDI includes the use of fine features or signal traces and spaces of 0.003” (75 µm) or less and laser-drilled blind or buried microvia technology. Microvias allow the use of micro-interconnects from one layer to another within a PCB utilizing a smaller pad diameter creating additional routing density or reducing form factor.
High Density PCB is used extensively in applications and industries including:
● Cell phone ● GPS
● Telecom ● ASemiconductor
● Automotive ● Military
● Medical ● Instrumentation