FIG 3 is a flowchart illustrating a method of manufacturing a PCB according to various embodiments of the present invention, and FIGS 4A through 4D are diagrams illustrating {HEAD ~ a method} of manufacturing {TAIL ~ a PCB} according to various embodiments of the present invention 
FIG 3 is a flowchart illustrating a method of manufacturing a PCB according to various embodiments of the present invention , and FIGS 4A through 4D are diagrams illustrating { HEAD ~ a method } of manufacturing { TAIL ~ a PCB } according to various embodiments of the present invention
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH