Definition

Quad Flat Pack (QFP) is a surface-mount IC package with gull-wing leads extending from all four sides. Lead pitch ranges from 0.4mm to 1.0mm. For PCB design, use IPC-7351 footprints and verify pad geometry matches your pitch. At 0.5mm pitch, dog-bone fanout works on the outer layers. At 0.4mm pitch, you may need via-in-pad or inner layer routing to escape all pins. The visible gull-wing leads allow inspection and rework, making QFPs easier to debug than QFNs or BGAs. Choose QFP over QFN when reworkability matters more than board space.