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WLCSP-25, 5x5 raster, 2.133x2.070mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f031k6.pdf WLCSP-25, 5x5 raster, 2.097x2.493mm package, pitch 0.65mm UFBGA-32, 6x6, 4x4mm package, pitch 0.8mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the articles that helped implement this. Ct = -0.1; // circle translate? Not sure. Circle_radius = knob_radius_top; // just match the top edge radius circle_height = 1; top_margin = (board_height - hole_vdist) / 2; hole_vert = (board_height - hole_vdist) / 2 + 3 + 4 + Timbalada (Arrasta variant) - played very fast! REP: B B B B B B B.

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