GaAs power FET's have been fabricated with the gate recess narrower than the gate. The fabrication process for this new channel structure is described and microwave performance is presented. The best device had greater than 1 W output power per millimeter gate width at 10 GHz.
M. SuzukiKatsumi MuraseK. AsaiK. Kurumada
Y. AonoA. HigashisakaTadayuki OgawaFumio Hasegawa
S. AsaiFabrício MuraiH. Kodera