Monday, 16 February 2015

etching - PCB test patterns to assess etch quality


Does anyone know of a good test sheet for assessing the quality of home etching?


Rather than create something and reinvent the wheel, I'm looking for a PDF/PS file featuring tracks of different thicknesses at different orientations.


Ideally, it might even be something useful (eg. some fine pitch SMD adapters).



Answer




I once made this test pattern that shows different trace and keepout widths as well as several package sizes including their pitch (in mm):


Preview of PDF file


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