supported by the State Key Development Programfor Basic Research of China(No.G2002CB311901);the Equipment Investigation Programin Advance(No.61501050401C);the Dean Fund of the Institute of Microelectronics,Chinese Academy of Sciences,(No.O6SB124004)~~
200nm gate-length power InAlAs/InGaAs MHEMTs with T-shaped gate are characterized for DC, RF, and power performance. The MHEMTs show excellent DC output characteristics with an extrinsic transconductance of 510mS/ mm ...