| 摘要 |
<p>A primary printed wiring board comprises: secondary printed wiring boards arranged in plural lines; main plated leads formed between the plural lines of secondary printed wiring boards; and auxiliary plated leads which connect patterns forming the secondary printed wiring boards to the main plated leads. In the primary printed wiring board, each main plated lead is zig-zagged comprising forwards lines and backward lines which are laid respectively on both sides of a cutting line with respect to the pattern, and the auxiliary plated leads are connected to the backward lines. With the primary printed wiring board thus designed, the auxiliary plated leads can be isolated from one another without being processed by blanking. That is, by cutting the board along a predetermined cutting line or lines, the auxiliary plated leads can be separated from the main plated leads and isolated from one another. Hence, it has the following effects. <IMAGE></p> |
