Understanding PCB Manufacturing: Silk-Screening

Understanding PCB Manufacturing: Silk-Screening: 

"Currently three methods are available for applying the “Ident” to the PCB. 

1. Manual screen-printing can be utilized when line widths are greater than 7 mil (0.007”) and the registration tolerance is 5 mil. 
2. LPI (Liquid Photo Imaging) provides more accuracy and legibility than manual screening and is employed when line widths are greater than 4mil. 
3. DLP (Direct Legend Printing) is the most accurate and legible of the 3 processes but also has the highest cost for consumables."

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