| 摘要 |
The present invention relates to a double-sided laser marking device. In an existing technology, both sides of a substrate are marked with a laser by rotating the substrate. However, the present invention provides a technology capable of marking the lower surface of the substrate with the laser as the laser beam reaches the lower surface of the substrate by controlling an angle of a laser beam and including two or more direction change mirrors in order for the laser beam to reach the lower surface of the substrate. [Reference numerals] (10) Laser head;(20) Scan head |
