Title :
Direct extraction of linear HBT-model parameters using nine analytical expression blocks
Author :
Ouslimani, Achour ; Gaubert, Jean ; Hafdallah, Habiba ; Birafane, Ahmed ; Pouvil, Pierre ; Leier, H.
Author_Institution :
Ecole Nationale Superieure de l´´Electronique et de ses Applications, Cergy Pontoise, France
fDate :
1/1/2002 12:00:00 AM
Abstract :
A method to determine the heterojunction bipolar transistor (HBT) equivalent-circuit elements without numerical optimizations is presented. It is based on the extraction of nine analytical expressions, which are referred to here as "blocks." The model elements are extracted using certain blocks for some of them and three nonlinear equations derived from a combination of four expression blocks for some others. The base and collector resistances can be determined at each bias point. The method is validated treating the on-wafer HBTs
Keywords :
equivalent circuits; heterojunction bipolar transistors; microwave bipolar transistors; semiconductor device models; analytical expressions; base resistance; bias point; collector resistance; direct extraction; equivalent-circuit elements; heterojunction bipolar transistor; linear HBT model parameters; parameter extraction; Capacitance; Circuit testing; Equivalent circuits; Gallium arsenide; Heterojunction bipolar transistors; Impedance; Nonlinear equations; Optimization methods; Parameter extraction; Polynomials;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
