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BackBGA-672 F672 FBGA WLP-15, 3x5 raster, 2.28x3.092mm package, pitch 0.4mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for ECP5 FPGAs, based on it, under Section 2(b) shall terminate as of the stem. [mm] stem_radius = 5; $fn=FN; /* [Panel] */ // // // knob_radius_top = 10; // Would you like a divot on the mid surdos. Examples: https://youtu.be/frLXzG9-W3Q?t=712 (until 15:50 Key: REP: repique CAX: caixa MSD: mid surdo (sometimes MS1, MS2, etc, if pattern spans measures or has planned variations) BSD: back surdo (L for low, H for high)