miniature electronic components interconnect on the surface of the circuit board

miniature electronic components interconnect circuit board surfacemounted smd surface mount technology pcb printed soldering reflow throughhole leadfree bga ball grid array micro connectors solder paste pick place machine oven component placement assembly process electrical connections highdensity compact miniaturization lead spacing design joint mechanical stress thermal reliability conductivity signal integrity impedance capacitance resistance inductance esd protection miniaturized integration finish mask manufacturing rohs compliance