Patent ID: 9743528
Date: 2017-08-22
CPC Classifications: H05K,Y10T

Claim:
1. A method for manufacturing a wiring board, comprising: preparing a large-sized wiring board having an effective region and a dummy region such that the large-sized wiring board has a penetrating hole on a border of the effective region and the dummy region and an inner-hole conductive layer covering an inner surface of the penetrating hole; moving a rotary tool having a tip blade along a rotation axis of the rotary tool at a peripheral portion of the penetrating hole such that the rotary tool drills a hole into the large-sized wiring board at the peripheral portion of the penetrating hole and segments the inner-hole conductive layer into a portion in the effective region and a portion in the dummy region; and moving a rotary tool having a side blade in a direction perpendicular to a rotation axis of the rotary tool having the side blade such that the dummy region is cut off from the effective region after the rotary tool having the tip blade makes the hole in the large-sized wiring board at the peripheral portion of the penetrating hole and a wiring board comprising the effective region of the large-sized wiring board is formed, wherein the rotary tool having the tip blade has a shaft and a drill blade at a tip of the shaft, and the rotary tool having the side blade has a shaft and a cutting blade on a side surface of the shaft.