QFP

 (Quad Flat Pockage) for the four-side-pin flat package, one of the surface mount package, pin leads from the four sides was a seagull wing (L) type. The technology of the CPU chip, the distance between pins is very small, very small pins, the general large-scale or large scale integrated circuits using this package, the pins are generally above 100.

Not only for the microprocessor, gate array and other digital logic LSI circuits, but also for the VTR signal processing, audio signal processing, analog LSI circuits.