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Via in Pad

Definition
Plated Through Holes filled with conductive (or non-conductive) epoxy plugging ink, subsequently planarized and plated over. Via-in-Pads are usually patterned into a BGA pad for direct soldering. IPC-4671 contains various definitions of plugged vias.

Applications
In addition to to saving PCB real estate, Via-in-Pads are a conduit for heat transfers.

SEC Solutions
Voids / dimples, surface planarity and more.

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Sample Boards
1new


1new

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666 4new