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21x11 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32l412t8.pdf ST WLCSP-49, ST die ID 495, 4.4x4.38mm, 100 Ball, 10x10 Layout, 0.55mm Pitch, https://www.dialog-semiconductor.com/sites/default/files/da1469x_datasheet_3v1.pdf#page=740 VFBGA-100, 10x10, 7x7mm package, pitch 0.4mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the setscrew hole; see knob_base(). Cylinder(h = stem_transition_height, r1 = stem_radius, $fn = smooth // outer pointy indicator // cube.

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