G U M M E L - P O O N B I P O L A R M O D E L(aglient)

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a article about how to calculate small signal parameter from gummel poon model　　
简介:Introduction
Operating Modes of the Bipolar Transistor
The Equivalent Schematic and the Formulas of the SPICE Gummel-Poon Model
A Listing of the Gummel-Poon Parameters
A Quick Tutorial on the Gummel-Poon Parameter Extractions
Proposed Extraction Strategy
CV Modeling
Extraction of CJE, VJE, MJE, as well as CJC, VJC, MJC
Parasitic Resistor Mmodeling
Extraction of RE
Extraction of RC
Extraction of RBM
Nonlinear DC Modeling
Extraction of VAR and VAF
Extraction of IS and NF
Extraction of BF , ISE and NE
Extraction of IKF
Reverse Parameters NR, BR, ISC, NC and IKR
AC Small Signal Modeling, Parameter Extraction
Extraction of RB, IRB and RBM
Extraction of TF, ITF, and XTF
Extraction of VTF
Extraction of PTF
Extraction of TR
Modeling of XCJC
Temperature Effects
Model Limitations
Appendices
Linear Curve Fitting: Regression Analysis
About the Modeling Dilemma
Verifying the Quality of Extraction Routines
Direct Visual Parameter Extraction of BF , ISE and NE
Calculation of h21 of the Gummel-Poon Model
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This manual is intended to explain the basics of modeling a bipolar transistor using the
Gummel-Poon model as it is implemented in the simulation program SPICE of the University
of California Berkeley (UCB) /see publication list/.
It is part of the Gummel-Poon Bipolar Model Parameter Extraction Toolkit.
This toolkit includes the IC-CAP model file
GP_CLASSIC_NPN.mdl the MASTER model file
which is described in this manual
and featuring the data management features of IC-CAP 5.x, i.e. separating measurements from
extractions:
NPN_MEAS_MASTER.mdl a master file for measurement
GP_EXTRACT_NPN.mdl a master file for modeling
as well as manyother IC-CAP model files covering topics like:
model parameter extraction using the tuner feature
direct visual parameter extractions
alternate modeling methods for DC- CV- and RF-parameters.
bipolar transistor modeling including the parasitic transistor.
Note:
After you have become familiar with the modeling procedure itself, i.e. file
GP_CLASSIC_NPN.mdl, you are encouraged to split the modeling into 2 parts: separate
measurements and separate extraction strategy. In this case, all measurements are performed
using the file NPN_MEAS_MASTER.mdl. Then, the data are exported into IC-CAP mdm
files (ASCII files) and imported into the master extraction file GP_EXTRACT_NPN.mdl for
extraction. This method allows to improve continuously the extraction strategy file,
independent of the measurement data!