Patent ID: 6429468
Filing Date: 2002-08-06
Classification: H01L

Abstract:
The structure of coupled &dgr;-IaP channel In0.34Al0.66As0.85Sb0.15/InP heterostructure field-effect transistor (HFET), comprising:Non-doping InP buffer layer grown on semi-insolating Inp substrate; &dgr;2-n30  Inp doping layer grown on the Nondoping InP buffer layer; Non-doping InP space layer formed on the &dgr;2-n+ Inp doping layer; &dgr;-n+ Inp doping layer grown on the Non-doping InP space layer; Non-doping InP layer grown on the &dgr;-n+ Inp doping layer; Non-doping InAlAsSb Schottky layer grown on Non-doping InP layer; Non-doping InGaAs obstructive layer grown on the Non-doping InAlAsSb Schottky layer; and the n30 -Inp covering layer finally formed on the Non-doping InGaAs obstructive layer.