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Copper, 3mm soldermask opening Circular Fiducial, 0.75mm bare copper, 3mm soldermask opening (Level A Circular Fiducial, 0.75mm bare copper, 1.5mm soldermask opening Circular Fiducial, 0.75mm bare copper, 1.5mm soldermask opening (Level C Circular Fiducial, 0.75mm bare copper, 1.5mm soldermask opening (recommended 5-pin SAW filter package based on http://www.latticesemi.com/view_document?document_id=213 BGA 0.8mm 9mm 121 BGA-132 11x17 12x18mm 1.0pitch Altera BGA-144 M144 MBGA Altera BGA-153 M153 MBGA Altera BGA-153 M153 MBGA Altera VBGA V81 BGA-81 Altera BGA-100 M100 MBGA 121-ball, 0.8mm BGA (based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, based on this one, Number of facets of rounding cylinder ct = -0.1; // circle.

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