| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that is able to restrict peeling of a copper foil of a printed board.SOLUTION: A printed board comprises: a substrate 2; a copper foil 4 formed on the substrate; and a resist 5 formed on the substrate and covering part of the copper foil 4. The copper foil 4 includes a first area covered by the resist 5 and a second area in which a shield plate 6 surrounding a predetermined area of the substrate 2 is installed. In the area where the outer edge part of the copper foil 4 and the outer edger part of the resist 5 intersect in a plan view, the angle formed between the outer edge part of the copper foil 4 in the first area and the outer edge part of the resist 5 covering the copper foil 4 is an obtuse angle.SELECTED DRAWING: Figure 3 |
