The PCB imaging process has evolved quite a bit over the last six or seven decades, from screening to liquid photoresist to dry film and then to aqueous dry film. Now laser direct imaging has created a world of possibilities that were unthinkable with film.
Of all of the process steps in a fabrication cycle, imaging may be the most critical. There are many variables to deal with in imaging, making best practices of solid data collection and analysis a must.
In the October issue of PCB007 Magazine, our experts discuss ways for the readers to fine-tune their imaging process by understanding how etching, plating, and imaging all work together.
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