Abstract
The drilling method that can yield both high accuracy and processing efficiency have been attracting attention in slot drilling for Printed Wiring Boards (PWBs). Here, we focus on the order of drilling. Proposed slot drilling method paying attention to the hitting order was attempted for GFRP PWBs. We investigated the influence of hitting order on hole registration accuracy and processing efficiency. As a result, the hole registration errors were controlled less than 100 m using a micro drill of 1.0 mm diameter and 10 mm flute length, and processing efficiency could be improved using proposed method.
