synth_tools

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7.6 of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf UFBGA-144, 12x12 raster, 10x10mm package, pitch 0.5mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32f207vg.pdf VFBGA-49, 7x7, 5x5mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf WLCSP-81, 9x9 raster, 4x4mm package.

3.411 -1.04 (end 1.77 -1.04.
Thick module pcb_holder(h, l, th, wall_thickness=thickness) .

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