Solid-state circuits are built entirely from solid materials and in which the electrons, or other charge carriers, are confined entirely within the solid material.

Instrument For Industry solid-state RF microwave amplifier products include Solid-state broadband amplifiers, Solid-state wideband amplifiers, Solid-state power amplifiers, Solid-state amplifier modules and Solid-state amplifier Systems. These products incorporate GaN (gallium nitride) and LMOS devices in the advanced solid-state amplifier designs.