| abstract |
PROBLEM TO BE SOLVED: To provide a printed circuit board which is excellent in dimensional stability and heat resistance, can be bent arbitrarily and can be stored at high density in a housing of an electronic device. A printed circuit board having a bent portion and a printed circuit board including at least one continuous insulating resin layer including a fiber base material, which is 180 degrees when bent at an arbitrary portion of the bent portion. A printed circuit board that can be folded and has a radius of curvature of 1 mm or less when folded. [Selection] Figure 1 |