| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit board having a wiring member which allows for conduction of a large current, reinforcement of the circuit board, and configuration of a wiring circuit having a high degree of freedom in the design of a straight line, a curve, and the like.SOLUTION: A circuit board includes a base plate 1, a wiring pattern 2 formed on the principal surface of the base plate 1, and a wiring member 3 connected electrically with the wiring pattern 2 and having a size, in the thickness direction orthogonal to the principal surface, larger than that of the wiring pattern 2. The wiring member 3 includes a current conduction part 3A that is polygonal in the plan view. One set of sides constituting the polygonal current conduction part 3A are in parallel with each other. One set of sides and another set of sides of the current conduction part 3A other than one set of sides form an acute angle or an obtuse angle. |
