Adaption circuit board for QFN20 & LFCSP20 (0.65 mm pitch) Epoxy fibre-glass FR4 1.50 mm Double-sided 35 μm Cu Plated through holes (PTH) Surface chem. Ni/Au Solder stop mask Hole spacing 2.54 mm Fits on sockets with a distance of 15.24 mm Shield pad and cooling field