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Https://www.xilinx.com/support/documentation/package_specs/ft256.pdf, design rules: https://www.xilinx.com/support/documentation/user_guides/ug1099-bga-device-design-rules.pdf Altera UBGA U324 BGA-324 BGA-624, 25x25 grid, 21x21mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l031f6.pdf WLCSP-25, 5x5 raster, 2.423x2.325mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32l476me.pdf WLCSP-81, 9x9 raster, 3.639x3.971mm package, pitch 0.4mm; https://www.latticesemi.com/view_document?document_id=213 UCBGA-81, 9x9 raster, 3.693x3.815mm package, pitch 0.4mm; https://www.latticesemi.com/view_document?document_id=213 UCBGA-49, 7x7 raster, 3.417x3.151mm package, pitch 0.8mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f051t8.pdf WLCSP-36, 6x6 raster, 2.61x2.88mm package, pitch 0.4mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f405og.pdf WLCSP-100, 10x10 raster, 4.201x4.663mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32f207vg.pdf WLCSP-66, 8x9 raster, 3.767x4.229mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l151cc.pdf WLCSP-64, 8x8 raster, 5x5mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l072kz.pdf WLCSP-49, 7x7 raster, 3.417x3.151mm package, pitch 0.35mm; see section 7.8 of http://www.st.com/resource/en/datasheet/DM00387108.pdf Texas Instruments, DSBGA, area grid, YBJ0008 pad definition, 0.95x1.488mm, 6 Ball, 2x3 Layout, 0.35mm Pitch, https://www.ti.com/lit/ml/mxbg383/mxbg383.pdf, https://www.ti.com/lit/ds/symlink/tps62800.pdf Texas Instruments, DSBGA, area grid, YZR pad definition Appendix A BGA 238 0.5 CPG238 Spartan-7 BGA, 26x26 grid, 27x27mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=306, NSMD pad definition (http://www.ti.com/lit/ds/symlink/ts5a3159a.pdf Texas Instruments CSD18531Q5A http://www.ti.com/lit/ds/symlink/csd18531q5a.pdf WSON, 6 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-dfn/05081703_C_DC6.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 54722-0404, 40 Pins per row (https://cdn.harwin.com/pdfs/M20-890.pdf), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55935-0330, 3 Pins (https://www.molex.com/pdm_docs/sd/009652028_sd.pdf), generated with kicad-footprint-generator JST GH series connector, 14110613002xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13002XXX_100228421DRW035C.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py 4-Lead Plastic Stretched Small Outline Package (MS) [MSOP] (see Microchip Packaging Specification 00000049BS.pdf.

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