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Altera_Forum's avatar
Altera_Forum
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15 years ago

Cyclone III package question about EQFP144

I noticed that the EQFP144 package has an exposed pad on the bottom. I did not account for this in my board layout. How big of a problem is this?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

What I meant to ask is what purpose this ground pad serves. Can I expect

return currents from the core power or I/O power? Sunk currents from I/O?

Just trying to figure out how well grounded it needs to be. The core power is pretty high current.