QFN / DFN / MLF Package Interface Solutions
Challenges and Solutions for Contacting Quad Flat No-Lead / Dual Flat No-Lead / Micro Lead Frame
DFN / QFN / MLFs are leadframe or organic substrate based packages that are usually encapsuled in a rectangular plastic body with contact pads on two or four sides. For better thermal performance, most DFN /QFN / MLFs have exposed pads, typically on the bottom of the device. DFN /QFN / MLFs are industry standard sized and the pads are typically spaced at pitches ranging from 0.35 mm to 0.65 mm.