METHOD OF MANUFACTURING PRINTED CIRCUIT BOARD FOR INVERTER OF WASHING MACHINE

摘要

An object of the present invention is to provide a method of manufacturing a printed circuit board for an inverter of a washing machine, which can reduce power consumption, have excellent durability, and can achieve quietness due to noise reduction. To achieve the above object, a method of manufacturing a printed circuit board for an inverter of a washing machine inverter according to the present invention includes: a first step (S100) of preparing an epoxy layer (100) having a copper foil (110) stacked on both sides; a second step (S200) of forming a through hole (A) penetrating upper and lower surfaces and a component hole (B); a third step (S300) of forming a copper plating layer (300) on an electroless copper plating layer (200) after forming the electroless copper plating layer (200) on an inner surface of the through hole (A), an inner surface of the component hole (B) and the copper foil (110); a fourth step (S400) of forming a hole land of the through hole (A), a hole land of the component hole (B), a circuit and a pad by performing a circuit forming process on the copper foil (110), the electroless copper plating layer (200) and an electrolytic copper plating layer 300; a fifth step (S500) of printing the inner surface and the hole land of the through hole (A), the inner surface and the hole land of the component hole (B) and an area other than the pad with a solder resist ink (400); and a sixth step of applying an organic solderability preservative (OSP) coating (500) to the inner surface and the hole land of the through hole (A), the inner surface and the hole land of the component hole (B) and the pad.