| 摘要 |
PROBLEM TO BE SOLVED: To provide a marking sheet not generating dust, gas or the like at the time of laser marking and capable of enhancing a product yield, a method for manufacturing the same, a laser marking method for the marking sheet and an apparatus therefor. SOLUTION: The marking sheet 1 equipped with a transmission layer and a non-transmission layer is irradiated with laser beam capable of transmitting through the transmission layer but not through the non-transmission layer. |
