| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayered printed wiring board which has a low-cost partially non-multilayered structure without requiring special materials, processing, working or skilled techniques, and a producing method therefor. SOLUTION: Concerning a multilayered printed wiring board, a dam member 14 for preventing a resin flow at the time of lamination is provided around the part where the number of layers is decreased. Thus, since the resin flow at the time of lamination can be effectively blocked without using special materials or processing, cost-down and yield improvement can be attained. The producing method for this multilayered printed wiring board has a process for forming a dam 14 for preventing resin flow by screen printing or the like corresponding to a notched part 13 for detaching a removal scheduled part. |
