QFP

A QFP or Quad Flat Package is an integrated circuit package with leads extending from each of the four sides. It is used for surface mounting (SMD) only, socketing or hole mounting is not possible. There are versions having from 32 to over 200 pins with a pitch ranging from 0.4 to 1.0 mm. Special cases include LQFP (Low profile QFP) and TQFP (Thin QFP).
See more at Wikipedia.org...

Quad Flat Pack - a common package for IC's with higher pin counts. Together with PLCCs, QFPs account for approximately 19% of integrated circuit packages on a units shipped basis. Use of QFPs is declining.

QUAD FLAT PACK. QFP