Multilayer printed circuit board BGA design

*Made in Taiwan*8 Layers Rigid PCB(Impedance Control, BGA) Spec 8 Layers Rigid PCB:FR4 Key Features Rigid PCB Layer-8 Layers Board Thickness-1.6 +/- 0.16mm Material-FR4 Surface Finish-Immersion Gold Au:1.2u"(Min), Ni:120u"(Min) Copper Thickness-B:1/3&1/3, H~H oz F:0.85/0.85, H~H oz Remark-BGA Impedance Controlled 50OHM, Differential Pair 90&100OHM *Made in Taiwan*