Labels Milestones
BackPitch, https://www.micron.com/-/media/client/global/documents/products/data-sheet/dram/ddr3/4gb_ddr3l.pdf#page=26 ST uTFBGA-36, 0.25mm pad, 3.6x3.6mm, 36 Ball, 6x6 Layout, 0.4mm Pitch, https://pdfserv.maximintegrated.com/package_dwgs/21-100489.PDF WLCSP-25, 5x5 raster, 2.097x2.493mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f401vc.pdf WLCSP-49, 7x7 raster, 3.294x3.258mm package, pitch 0.4mm; see section 7.4 of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf UFBGA-169, 13x13 raster, 7x7mm package, pitch 0.65mm WLP-4, 2x2 raster, 0.73x0.73mm package, pitch 0.4mm; see section 6.6 of http://www.st.com/resource/en/datasheet/DM00273119.pdf X1-WLB0909, 0.89x0.89mm, 4 Ball, 2x2 Layout, 0.35mm Pitch, http://www.latticesemi.com/view_document?document_id=213 Analog Devices (Linear Tech), 133-pin LGA uModule, 15.0x15.0x4.32mm, https://www.analog.com/media/en/technical-documentation/data-sheets/4637fc.pdf NXP.
- SO-8 PowerPAK PQFN Q5A PowerFLAT LFPAK.
- 3 times outer diameter, generated.
- Accord with Subsection b.