U. Schaper et P. Zwicknagl, PHYSICAL SCALING RULES FOR ALGAAS GAAS POWER HBTS BASED ON A SMALL-SIGNAL EQUIVALENT-CIRCUIT/, IEEE transactions on microwave theory and techniques, 46(7), 1998, pp. 1006-1009
Physical scaling rules for AlGaAs/GaAs heterojunction bipolar transist
ors (WT's) containing 2-16 emitter fingers are demonstrated. The param
eter extraction is based on a small-signal equivalent circuit. The sca
ling parameters compare favorably with the measured data from the proc
ess control monitor.