RF Micro Devices, Inc. has announced an agreement to sell its Gallium Arsenide (GaAs) semiconductor manufacturing facility in Newton Aycliffe, in the U.K. to Phoenix-based Compound Photonics. The transaction and product transition are expected to provide RFMD $20 million in annual cost savings, or $5 million per quarter. RFMD expects to realize the full benefit of savings beginning in the December quarter.