Blind Via L1-L2, L3-L4, Immersion Gold 4Layer Multilayer PCB

Rogers4003C 0.8mm Finished Board With Immersion Gold Finish

Black Solder Mask 0.3mm Thick Double-sided 18um Copper PCB

FR4 And Rogers Hybrid 4Layer Board With Immersion Gold Finish

Plated Gold Finger 4Layer Multilayer PCB Board

Multilayer 6Layer Immersion Gold Circuit Board

Rogers+FR4 Hybrid Immersion Gold 4Layer Board

Flat Roof 2.4mm Immersion Gold Double-sided Board

Impedance Control Technology 6Layer Immersion Gold Board

4Layer Multilayer PCBs With Plugging The BGA Chip With Resin Underneath Via