The SPICE Source for: Simulating Hybrid Circuits
of Single-Electron Transistors and Fied Effect Transistors
This file contains links to the source code for the simulations presented in
the article
Simulating Hybrid Circuits of Single-Electron Transistors
and Field-Effect Transistors
Günther Lientschnig, Irek Weymann, and Peter Hadley
Applied Sciences and DIMES, Delft University of Technology
Lorentzweg 1, 2628 CJ Delft, The Netherlands
Japanese Journal of Applied Physics 42 pp. 6467-6472 (2003)
doi: 10.1143/JJAP.42.6467.
In this article, a model for a single-electron transistor (SET) was developed
within the circuit simulation package SPICE. Circuits including single-electron
transistors, field-effect transistors (FET’s), and operational amplifiers
were then simulated.
The SPICE model for a SET
The schematic circuit diagram of the SET SPICE model used for the simulations
in the article is shown below. The source code of the SPICE subsircuit definition
can also be donloaded.
The white voltage sources representing the bias and gate voltages
are external to the SET SPICE model and the gray sources are internal to the
model. E1 is a voltage source that defines the voltage of the island of the
SET (node 5) and G1 is a current source that specifies the source - drain
current from node 1 to node 2.
In the SET SPICE model, the most probable charge state
is calculated first, and then the master equation for the eleven charge states
around this state is solved to calculate the values for E1 and G1.
Using this model, the current-voltage charateristics for a SET and the stationary
and transient behavior of circuits containing SET's can be calculated with SPICE.
All simulations presented in the article are listed below. The graphs can be
enlarged by cliking on them, and the SPICE source code can be downloaded. For
more information on the circuits, please refer to the article.
I-V Characteristics of a SET
I-V Characteristic and Transient Behavior of a SET Inverter
and a Ring Oscillator
Hybrid Circuits Consisting of SET's and FET's
