Laser Marking of ECC 200 2D Matrix Codes on Printed Circuit Boards
Manufacturers of electronics, home audio systems in the automotive keyless entry systems, are increasingly looking for a reliable and convenient way to identify and track products through manufacturing cycle, sales distribution and after-sales guarantee authentication. Autonomous, automated tracking system requires a permanent, legible code machine to apply a single printed circuit uniquely identify every item. The code must be durable enough for production processes, including wave soldering and cleaning the board does not deserve to affect the performance of the circuit, and the information must be stored in small space on the property boards.
The-aware 2D PCB matrix code provides a means to store alphanumeric strings in very small part of CAP. 激光 marking technology provides a method for applying 2D matrix continues for most board substrates. High resolution and high precision 激光 beam control marking systems provides the means to create well-defined, codes of high reliability regardless of the size of the code. 激光 marking also provides the user of a computer-controlled marking process for easy implementation into automated monitoring products systems.
ECC CodesTwo Matrix 200 2D symbologies encode size information in the form of a chessboard of power to arrest cells. Specific advantages of Data Matrix codes over conventional 1D barcodes are: encode digital information, in contrast to the encoding of analog to traditional bar codes. Can accommodate low contrast print directly on parts without a label, offers a very high information density – the highest among the other common 2D codes, which means that a lot of information in a very small. They are scalable, which means that you can print and read at different levels of magnification – only limited by the resolution imaging and printing available.
The high density of information that are inherent Card Matrix codes, they also offer fully integrated technical correction that can restore the message encoded in a DataMatrix symbol, even if the label is damaged or missing up to 20% symbol. They are read by cameras, unlike a 激光 scanner for reading bar codes, which means they can be read at any orientation.ECC Data Matrix symbology 200 is the most popular 2-D with a wide use in sectors such as automotive electronics, semiconductors, medical devices, and other manufacturing applications, the unit-level traceability.
Data Matrix are generally not replace traditional linear bar codes, but are used as traditional bar codes were too big, not enough storage, or were unreadable.Data StructureThe 2D Matrix Code are displayed as a matrix board, with individual squares (cells) 在 (白色的) or off (black) state. The code consists of four different elements. The "Finder L" model consists of a row of cells on the left and bottom of the code reader is directly available to the 2D code. The clock has run a series of on / off cells along the coast and the code than the number of row / column for the reader.
The region data is the model of the blood cells in the model B & W L-tracks and watch the contents of the alphanumeric code in them. The quiet of all code must be free of any function that may be visible to the reader. The lying area must be at least two rows / columns width for codes composed of square cells. the rest area must be at least four rows / columns range product codes of circular cells (DOTS). ECC 200 Data Matrix codes 3116 numeric, alphanumeric characters or 2335 bytes of binary information 1555 to a column of 144 144 Line Array.
More realistic symbol size of printed circuit boards may still contain a significant amount information.激光 SystemThe 激光 marking is the marking 激光, beam shaping optics, and the direction of a 激光 amplifier are gebruikt.De generates a bright light, collimated beam of light at specific wavelength. For FR4 and solder mask applications, most users opt for the air-cooled CO2 æ¿€å…‰åŒ 0.640 10 nm wavelength

留下回å¤