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Filtronic plc of Shipley manufacture of a broad range of customised RF, microwave and millimetre wave components and subsystems for telecommunications.
1977 June company formed
Maker of devices for military hardware.
1985 Filtronic Components received a Queen's Award for Technology
1992 Stock market flotation of Filtronic Comtek
1998 Acquired LK-Products from Nokia, a maker of filters and antennae for mobile phones, and Litton Solid State; share issue to raise the money to pay for these and other acquisitions
1999 Acquired a semiconductor factory at Newton Aycliffe from Fujitsu to make gallium arsenide semi-conductor devices
2001 After a period of losses, arrangements were made for the Newton Aycliffe plant to manufacture components for other companies