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A large-signal equivalent circuit is described based on a simplified analysis of the operation of a planar transistor. The extra stored charge in saturation and the d.c. characteristics are related to the geometry and impurity profile, and the results are used to define the value of the circuit elements.
Inspec keywords: integrated circuits; equivalent circuits; logic circuits; semiconductor device models; transistors
Subjects: Digital electronics; Integrated circuits; Semiconductor integrated circuits; Bipolar transistors; Pulse circuits; Semiconductor device modelling, equivalent circuits, design and testing