![]() ![]() I think 0.005" (0.13mm) may be a ballpark number for silkscreen layers.Īpertures are solid images, not outlines. Arc and line width may be varied arbitrarily, however, there is probably a minimum acceptable line width that is vendor-dependent. Basically the aperture can be thought of as an opening in a screen where ink will be applied. Rectangle and circle apertures are default, pre-defined apertures. An aperture is an arbitrary shape which may be "flashed" onto the relevant layer. The gerber format basically allows you to draw arcs or lines and to flash apertures. Any silkscreen artwork must be converted into the gerber format in order to be reproduced on a PCB. PCB fabrication houses work from gerber files. To the best of my knowledge, no, you cannot submit bitmaps to a PCB fabricator. Since there are probably not hard and fast rules to this, I will give you my marginally informed opinion.
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