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Altera_Forum
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14 years ago

256 FBGA Footprint

I cannot seem to find the land pattern recommendations for the EP3C5F256C8N 17X17 256 FBGA. Anyone know where they are? Rich
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Altera_Forum
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14 years ago

The altera device package information data sheet doesn't specify land patterns. Industry standard land patterns should be applied. For 1 mm grid FBGA, 0.45 - 0.55 mm pad diameter (NSMD, not solder mask defined = soldermask > pad) is specified, 0.45 mm mostly used.