Advanced Modeling of Silicon-Germanium Heterojunction Bipolar Transistors - Softcover

Pawlak, Andreas

Softcover

ISBN 10: 395908028X ISBN 13: 9783959080286

Verlag: TUDpress, 2015

Inhaltsangabe

Silicon-Germanium Heterojunction Bipolar Transistors (SiGe HBTs) are perfectly suited for high-speed electronics. Since the fabrication costs per design cycle are rapidly increasing with progressing frequency and complexity of the systems, accurate compact models are essential in order to enable robust circuit design. This thesis focuses on selected important physical effects in advanced SiGe HBTs, which have been either insufficiently modeled or completely missing in conventional compact models. New compact model equations for the transfer current were derived and successfully applied to a large set of different technologies. Hereby, the ”Generalized Integral Charge Control Relation‘‘ was used as a foundation. A physics-based model utilizing small-signal parameters obtained from measurements is derived for modeling the current dependent collector charge. A brief chapter about substrate effects in bipolar transistors comprises the derivation of a compact model for the bias-dependent substrate resistance as well as a proper partitioning of the substrate capacitance. New extraction methods for compact model parameters are introduced and the application of existing methods to advanced processes is discussed. The derived model equations were applied to a very advanced SiGe HBT process developed by IHP. Highly accurate models for DCand small-signal as well as for large-signal characteristics are presented. The derived model equations were applied to a selected very advanced SiGe HBT process developed by IHP. Highly accurate models for DC and small-signal as well as for large-signal characteristics are presented.

Details zur Ausgabe

• Verlag: TUDpress
• Erscheinungsdatum: 2015
• Sprache: Englisch
• ISBN 10: 395908028X
• ISBN 13: 9783959080286
• Einband: Taschenbuch
• Auflage: 1
• Anzahl der Seiten: 232
• Kontakt zum Hersteller: preigu GmbH & Co. KG; mail@preigu.de; ; Lengericher Landstr. 19; Osnabrück; Niedersachsen; 49078; Deutschland