Why do all the ground leads short outs beteween each other after Packing Virtex-4 via BGA?

After We have assembled the Virtex-4 FPGA BGA package on our custom design PCB, we check for short circuits between all power grounding and they shows short cut between each other. Please tell us about any process for debugging this issue.

November 16, 2023

Check you CAD database.
Test you custom PCB before BGA packing.
Check every pin on the board.
Consider if Virtex-4 is too old to run with your circuit.

Lees verder: BGA PCB-assemblage

#PCB-ontwerp

Olivier Smit

Oliver is een ervaren elektronica-ingenieur met kennis van PCB-ontwerp, analoge circuits, ingebedde systemen, en prototyping. Zijn diepgaande kennis omvat schematisch vastleggen, firmware-codering, simulatie, indeling, testen, en probleemoplossing. Oliver blinkt uit in het omzetten van projecten van concept naar massaproductie met behulp van zijn elektrische ontwerptalenten en mechanische vaardigheden.

Olivier Smit

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Why do all the ground leads short outs beteween each other after Packing Virtex-4 via BGA?

Olivier Smit

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How can I solder an SMD component with a pad on the bottom?

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