Extraction of the base and emitter resistances in bipolar transistors using an accurate base resistance model |
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| Authors: | Ingvarson F. Linder M. Jeppson K.O. |
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| Affiliation: | Dept. of Microelectron., Chalmers Univ. of Technol., Goteborg, Sweden; |
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| Abstract: | A straightforward method for extracting the base and emitter resistances is presented. The method has the following properties: 1) only a standard forward Gummel measurement on one transistor is required; 2) current-crowding and conductivity-modulation in the base are accounted for through the use of an accurate base resistance model; and 3) the resistance parameters are extracted using a nonlinear optimization step. Furthermore, a technique for extraction of the high-injection parameters of a modified collector current model is also presented. |
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