Make contact with test ,Open up/short test,Resistance capacitance test test,diode, triode,mosfet test,No power on hybrid test,Boundary scan chain test,Power on blended mode test&time period; Spot power and ground planes adjacent to each other to make a very low-impedance power distribution community. High-density components may lead to complications with warmth management. https://neill913klm7.blogs100.com/profile