Documentation

Latest revision as of 15:25, 29 May 2008

When you create your PCB´s, the following design rules should be considered to prevent additional cost when PCB manufacturing:

The minimum track width as well as the track spacing should be 0.15 mm. (smaller is possible, but costs more). The minimum track width after consultation is 0.15 mm (try to avoid such narrow tracks...use only in case of emergency).
[Drillhole]s should not be smaller than 0.3 mm. (smaller sizes are possible after consultation). All drillhole diameters starting from 0.3 mm are possible. The sizes are selectable in 0.1 mm steps. Through holes (Vias) will be drilled 0.15 mm bigger as listed in the drill list, to cover the tolerances after the metallization7galvanization. Drill holes which are not metallized will be drilled 0.1 mm bigger.
Please check that the residual ring is at least 0.2 mm on all sides. This equals a through hole diameter of 0.7 mm while the drill hole is 0.3 mm.
The distance between the tracks and the PCB edge (outline)should be at least 0.5 mm.
Texts in copper should be at least 2 mm high (font).
In the insertion legend print, the line width of the fonts should be at least 0.2 mm. The height of fonts should be at least 3 mm.
The outline of the PCB must be drawn on an extra layer (default: layer 23). Use lines of width 0.3mm for example. The middle of the line defines the exact edge of the PCB. Lines of width 0 (zero) are omitted with several output formats!

TARGET 3001! recommends the following PCB manufacturers:

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