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Of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf WLCSP-81, 9x9 raster, 3.693x3.815mm package, pitch 0.4mm; see section 7.7 of http://www.st.com/resource/en/datasheet/DM00330506.pdf WLCSP-100, 10x10 raster, 8x8mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l031f6.pdf WLCSP-25, 5x5 raster, 2.097x2.493mm package, pitch 0.65mm UFBGA-32, 6x6, 4x4mm package, pitch 0.5mm (http://www.analog.com/media/en/package-pcb-resources/package/56702234806764cp_24_3.pdf, http://www.analog.com/media/en/technical-documentation/data-sheets/ADL5801.pdf LFCSP VQ, 24 pin, exposed pad: 4.5x8.1mm, with thermal vias in pads, 3 Pins (http://www.molex.com/pdm_docs/sd/559350210_sd.pdf), generated with kicad-footprint-generator Through hole socket strip THT 1x37 2.00mm single row Surface mounted pin header SMD 2x30 2.54mm double row surface-mounted straight socket strip, 2x20, 2.54mm pitch, 8.51mm socket length, double cols (from Kicad.