Nanosecond UV laser engraving PCB circuit board QR code will not fade or fall off

Ultraviolet laser can mark various characters, symbols and patterns on the surface of circuit board PCB/FPCB, and the character size can range from millimeters to micrometers. In addition to effective anti-counterfeiting, it can also realize the control and traceability of product quality. Whether it is fine processing or processing efficiency, it fully meets the current needs of PCB/FPCB marking processing.

On Monday morning, I received a customer from Jiangsu who needed to purchase a 355nm UV laser for PCB/FPCB marking processing. The customer said that he originally used a certain brand of laser on the market, but soon discovered that the light intensity was indicated during the use of the ultraviolet laser, and the workpiece was burned. He asked us what solution could be provided.

In fact, the design of each brand laser is different. If it is an RFH EXCELLENT series laser,