Laser Marking in Electronics Industry
Even in the Smallest Areas
Electrical products usually bear various labels and markings, they are required for good usability and contain type- and security information, serial numbers and traceability codes. Solid state and CO2lasers will produce durable laser markings on commonly used materials even on the smallest areas. For instance, a perfectly legible 2D matrix code will fit within an area of less than 1 mm x 1 mm.
Laser marking of polymers relies on carbonization or foaming processes caused by laser beam absorption. For backlit parts the laser selectively removes specific lacquer layers from multilayer-coated transparent bodies.
For metal housings annealing is used in most cases. Annealing produces durable laser markings with perfect surface quality without adding any undesirable substance.
Laser Marking of Components for Electrical Installation
- Dark and light markings on differently colored parts.
Laser Marking of Circuit Boards
- Data-matrix codes by color exchange.