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Content Provider | IEEE Xplore Digital Library |
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Author | de Graaff, H.C. Kloosterman, W.J. Geelen, J.A.M. Koolen, M.C.A.M. |
Copyright Year | 1989 |
Description | Author affiliation: Philips Res. Lab., Eindhoven, Netherlands (de Graaff, H.C.; Kloosterman, W.J.; Geelen, J.A.M.; Koolen, M.C.A.M.) |
Abstract | The improved performance of the compact bipolar transistor model MEXTRAM is demonstrated by comparison with Gummel-Poon (GP) model calculations and measured DC and high-frequency data. The MEXTRAM model contains extended modeling of the collector epilayer and the inactive region of the base-collector epilayer and the parasitic pnp. It has five internal nodes, whereas the GP model has three. The advantage is a more accurate prediction of the DC behavior and the f/sub t/ fall-off at high currents. The AC small-signal behavior at frequencies >or=f/sub t/ is dominated by the inactive part of the device. If unphysical fit parameters are accepted, the GP model can obtain in the forward mode up to the top of the f/sub t/ nearly as good a fit as MEXTRAM does; the predictive capability, especially for down-scaled devices, however, will remain inferior. This is a very important point for circuit optimization MEXTRAM has been used successfully in this area, e.g. for ECL gates.< |
Starting Page | 246 |
Ending Page | 249 |
File Size | 264143 |
Page Count | 4 |
File Format | |
DOI | 10.1109/BIPOL.1989.69501 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1989-09-18 |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Bipolar transistors Voltage Semiconductor process modeling Equivalent circuits Physics Proximity effect Laboratories Frequency measurement Equations Predictive models |
Content Type | Text |
Resource Type | Article |
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