FAM QFN

Film Assisted Molded QFN is one the series production technologies that; Silicon Radar has been using for antennas in package solutions. Antennas are manufactured on an RF material and placed next to the MMIC in the lead frame. Then RF pads are directly wire bonded to the antennas. To overcome the RF losses in the molding material as in a standard QFN package, RF wire bonds are kept short and a window is opened over the antennas using a film assisted molding technology.

Advantages:

Reliable

Short RF bond wires possible

Suitable for QFN footprint

Suitable for series production and series testing

Disadvantages:

Requirement for fine antenna and MMIC placement

Requirement for careful wire bonding

Slower in series production making it more expensive in very high quantities