A method of manufacturing a
brake pedal coil
printed circuit board for vehicles is provided which is capable of allowing a
wireless sensor to quickly sense whether physical energy from a driver is applied to a foot
brake pedal to turn on rear
brake lights. To solve the above problems, the method of manufacturing a brake pedal coil
printed circuit board for vehicles includes preparing a first
epoxy layer (100) having first
copper foil (110) laminated on both surfaces thereof (S100), laminating each of second
epoxy layers (200a and 200b) on the first
copper foil (110), and laminating second
copper foil (210) on each of the second
epoxy layers (200a and 200b) (S200), forming a through hole (A) passing through upper and lower surfaces, performing electroless
copper plating on an inside surface of the through hole (A) and the second
copper foil (210), and forming an electrolytic copper-plated layer (220) on each of the electroless copper-plated layer (215) of the through hole (A) and the electroless copper-plated layer (215) formed on the second
copper foil (210) (S300), forming circuits having a predetermined pattern on the electrolytic copper-plated layer (220) and the electroless copper-plated layer (215) and forming a gap between the circuits to have the same size as the circuits (S400), applying a PSR ink (250) onto the electrolytic copper-plated layer (220) (S500), applying a
marking ink (260) onto the PSR ink (250) (S600), forming a
nickel (Ni)-plated layer (230) around the through hole (A) and the hole land (S700), and forming an Au-plated layer (240) on the Ni-plated layer (230) (S800).