使用CO2激光器或YAG激光器的系统可以用字母数字和/或条形码永久标记PCB和组件。激光标记可用于物品标识和可追溯性。使用CO2激光进行标记通常是在飞行中进行的，而要标记的项目则在输送机上运输。YAG激光标记通常仅限于金属标记，用于标记固定物品。激光标记机为用户提供了非常高的产品吞吐量、可靠性和较低的运营成本。

SYSTEMS USING CO2 LASERS OR YAG LASERS ARE AVAILABLE TO INDELIBLY MARK PCBS AND COMPONENTS WITH ALPHA-NUMERIC AND/OR BAR CODE. LASER MARKS CAN BE USED FOR ITEM IDENTIFICATION AND TRACEABILITY. MARKING WITH CO2 LASER IS NORMALLY DONE ON-THE-FLY WHILE ITEMS TO BE MARKED ARE TRANSPORTED ON A CONVEYOR. YAG LASER MARKING USUALLY CONFINED TO METAL MARKING WILL MARK STATIONARY ITEMS. LASER MARKERS OFFER USERS VERY HIGH PRODUCT THROUGHPUT, RELIABILITY AND LOW OPERATING COSTS.