Two-dimensional (2-D) MESFETs with 0.4 mu m channel widths have been f
abricated on ion-implanted n-GaAs material. The 2-D MESFET uses sidewa
ll Schottky contacts on either side of an Si-doped channel to laterall
y modulate the current. The peak drain current is 370mA/mm and the pea
k transconductance is 295mS/mm at room temperature. The narrow channel
effect and channel length modulation have been reduced in this device
.