chipwhisper CW312T template for KiCad with Dreg port (and easyeda file to import)
PCB specs
Thickness: 1.6 mm (0.062"). Required by the CW312 card-edge connector (Samtec MECF), and it's the default thickness anyway, so no extra cost.
Edge fingers: ENIG + "gold fingers" (solder mask removed over the pads) is enough for a target plugged in/out a few dozen times. Note JLCPCB only does "gold fingers" with ENIG selected, this is NOT real electroplated hard gold. Use real hard gold (e.g. PCBWay) only if you need hundreds/thousands of insertions.
Bevel/chamfer (30°): JLCPCB won't bevel boards smaller than 50 x 50 mm, and can't bevel V-cut panelized fingers. Fine to skip on small targets, the MECF socket has its own lead-in.
No comments yet. Be the first to ask about this board.