Method for manufacturing flexible printed circuit board (FPCB) and apparatus for manufacturing FPCB

A method of manufacturing a flexible printed circuit board (FPCB), for forming a pattern on a base film in a roll-to-roll method, the method comprising:

• a step of preparing a base film;
• a step of preparing a printing roll having a cylinder shape and a surface that has a printing roll pattern that is inclined at an angle with respect to a longitudinal direction of the printing roll;
• and
• a step of forming a pattern that is inclined with respect to a moving direction of the base film by the printing roll pattern as the base film passes the printing roll,
• wherein the printing roll pattern is configured to have a form of a coil continuously extending from one end of the printing roll to the other end of the printing roll,
• wherein the step of preparing a base film comprises a step of preparing the base film on which a conductive material and a photosensitive material are applied, the step of preparing a printing roll comprises a step of preparing the printing roll that has a hollow unit provided with a light source formed inside the printing roll and that has a shielding pattern that selectively shields light emitted from the light source, and a step of preparing a jig interposed between the printing roll and the base film for light transmission, the jig being divided into a light transmission area that transmits light and a shielding area that shields light between the printing roll and the base film, and
• wherein the jig has a cross section of a semi-circular shape, the light transmission area of the jig is formed at a center of the jig on the cross section of the jig in a moving direction of the base film, and the shielding area of the jig is provided at areas other than the light transmission area.