Laser Direct Imaging Benefits from Solid State Technology
نویسندگان
چکیده
Laser Direct Imaging (LDI) in the production of printed circuit boards (PCBs) offers a number of advantages over traditional contact printing methods. This paper reviews the basics of LDI technology and explores how solid state laser technology has positively impacted system throughput and cost-of-ownership characteristics. 1 LDI Basics In LDI, a laser is used to image a pattern directly on to a photoresist-coated panel, completely eliminating the production and use of a traditional phototool. In the most common LDI implementation, the front end CAM system is used to modulate a focused laser beam that is raster scanned across the panel (Fig. 1).
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