There are various types of semiconductor and IC packages, such as Quad Flat Package (QFP) and Small Outline Package (SOP). Regarding the "Quad Flat Package (QFP)", this article will explain the information below. Quad Flat Package (QFP) Definition Types of Quad Flat Package (QFP) Quad Flat Package (QFP) Definition QFP stands for "Quad Flat Package". Quad Flat Package (QFP) is a gull wing (L-shaped) package with leads coming out of four sides of the package. There are various pin pitches such as 1.0mm, 0.8mm, 0.65mm, 0.5mm, 0.4mm, and 0.3mm. Note that as the pin pitch becomes narrower, the lead pins ...