Enhanced productivity and board-level traceability available for screen print
27 July 2005Manufacturing / Production Technology, Hardware & Services
In order to prevent set-up errors, maximise productivity and gather data for continuous improvement, Dek has introduced set-up verification and traceability for screen printing. The new functionality also includes optional features to enable manufacturers to achieve board-level traceability at the screen printing stage.
The new tool features software and hardware designed to automatically identify the stencil, paste and other set-up variables as the machine is being prepared. Verification then compares the actual values with those specified in the product file, and can be programmed to halt the machine before printing starts or to generate a warning in the event of an error. This software supports 1D and 2D bar codes, and all data is recorded for later analysis in formats compatible with popular packages such as Microsoft Excel.
The optional Traceability module and conveyor-mounted bar code reader identify each board entering the machine, linking its ID with set-up verification data stored on the machine's hard drive. The data derived from this board-level traceability for high accuracy mass imaging increasingly drives processes and compliance criteria in modern manufacturing, including established quality standards for automotive and medical markets, as well as customer Certificate of Conformity specifications. Traceability also enables manufacturers to minimise product recalls and returns, providing vital information in order to eliminate printing defects and isolate individual boards or assemblies where required.
In addition to recording set-up variables, further data including ambient temperature and humidity, operator identity and line identity is also gathered. Data is accessible via a network connection or can be copied onto removable media. It can then be used as input to statistical process control tools to drive quality monitoring and continuous improvement.
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