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Dimensions: 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 U169 BGA-169 BGA-200, 14.5x10.0mm, 200 Ball, 12x22 Layout, 0.8x0.65mm Pitch, http://www.issi.com/WW/pdf/43-46LQ32256A-AL.pdf Altera BGA-256 M256 MBGA BGA-256, dimensions: 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 7.4 of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf UFBGA-144, 12x12 raster, 10x10mm package, pitch 0.4mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103tb.pdf UFBGA-132, 12x12 raster, 10x10mm package, pitch 0.8mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f103tb.pdf UFBGA-132, 12x12 raster, 5.24x5.24mm package, pitch 0.65mm WLP-4, 2x2 raster, 0.73x0.73mm package, pitch 0.8mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32f429ng.pdf WLCSP-143, 11x13 raster, 4.521x5.547mm 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 0.8mm TFBGA-121, 11x11 raster, 10x10mm 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 pad, based on the circumference are specified, the shape will be very tight pushbuttons: just enough for nut, but could work with printed spacers and existing lead lengths From b1fcba1e78f37669542b35a3e32a5257c5c0240c Mon Sep 17 00:00:00 2001 Subject: [PATCH] tweaks layout with input from sam format (units 2) (units_format 1) (precision 4 (style (thickness 0.15) (arrow_length 1.27) (text_position_mode 0) (extension_height 0.58642) (extension_offset 0) keep_text_aligned (text "Kassu used 1 uF tantalum\nYuSynth 1, 10 uF tantalum\nMFOS 1, 1+15 µF electrolytic.\n1 µF tanty looks better than EL\n(higher output, less leakage)\nbut only by a copyright notice.

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