High performance fully passivated InAlAs/InGaAs/InP HFET

Autor: Jurgen Dickmann, H. Nickel, H. Daembkes, A. Geyer, R. Lösch, H. Haspeklo
Rok vydání: 1992
Předmět:
Zdroj: Electronics Letters. 28:647
ISSN: 0013-5194
DOI: 10.1049/el:19920409
Popis: The fabrication of fully Si3N4passivated lattice matched InAlAs/InGaAs/InP HFETs is reported. The DC IV characteristics of 0.25μm gate length multigate finger devices show no kink or loop effects indicating excellent material quality. The drain to source breakdown voltage is in excess of VDB > 5V. From the DC device characterisation a maximum saturation current of 490 mAmm and a maximum transconductance of 500mSmm have been measured. A maximum current gain cutoff frequency of fT = 100 GHZ and a maximum unilateral gain cutoff frequency as high as fmax = 280 GHz have been achieved.
Databáze: OpenAIRE