The FPD3000SOT89 is a packaged depletion mode AlGaAs/InGaAs pseudomorphic High Electron Mobility Transistor (pHEMT). It utilizes a 0.25 m x 3000 m Schottky barrier Gate, defined by high-resolution stepperbased photolithography. The double recessed Gate structure minimizes parasitics to optimize performance, with an epitaxial structure designed for improved linearity over a range of bias conditions and i/p power levels.