应用文章
Barcode labels, whether they are in 2D, 3D or matrix formats, are commonly used on printed circuit boards for identification so that manufacturers can easily find out the board status during automated components assembly, processing, testing, final assembly and packaging through their database tracking system.
The Keysight i3070 Series 5 inline in-circuit tester is equipped with a Zone 1 Infeed stage (buffer zone) to allow barcode scanning before the ICT phase. When the board under test (BUT) flows from upstream system into the Infeed stage, the sensor of the Zone 1 stopper senses the BUT and triggers the PC to read the barcode. If it is accepted, the BUT will flow to the Zone 2 test stage to proceed with testing. If the BUT passes the test, it will be transferred to the next downstream system. If the barcode reading fails, the BUT will be transferred into the reject sorter.
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