Editing Bipolar junction transistor (section)

=== Industry models <span class="anchor" id="Mextram"></span><span class="anchor" id="HICUM"></span><span class="anchor" id="HiCuM"></span><span class="anchor" id="Modella"></span><span class="anchor" id="VBIC"></span> ===
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The Gummel–Poon SPICE model is often used, but it suffers from several limitations. For instance, reverse breakdown of the base–emitter diode is not captured by the SGP (SPICE Gummel–Poon) model, neither are thermal effects (self-heating) or quasi-saturation.<ref>{{cite web |title=VBIC Description and Derivation Details<!--title from here: https://designers-guide.org/vbic/references.html--> |url=https://designers-guide.org/vbic/documents/VbicText.pdf |website=Designer's Guide}}</ref> These have been addressed in various more advanced models which either focus on specific cases of application (Mextram, HICUM, Modella) or are designed for universal usage (VBIC).<ref>{{Cite web |url=http://www.silvaco.com/content/kbase/smartspice_device_models.pdf |title=SmartSpice Analog Circuit Simulator|publisher=Silvaco |access-date=January 15, 2015 |archive-date=March 5, 2016 |archive-url=https://web.archive.org/web/20160305020435/http://www.silvaco.com/content/kbase/smartspice_device_models.pdf }}</ref><ref name="Gildenblat2010" >{{cite book |editor=Gennady Gildenblat |title=Compact Modeling: Principles, Techniques and Applications |date=2010 |publisher=Springer Science & Business Media |isbn=978-90-481-8614-3 |at=Part&nbsp;II: Compact Models of Bipolar Junction Transistors, pp. 167–267 cover Mextram and HiCuM in-depth }}</ref><ref name="Schröter2010">{{cite book |first=Michael |last=Schröter |title=Compact Hierarchical Bipolar Transistor Modeling with Hicum |date=2010 |publisher=World Scientific |isbn=978-981-4273-21-3 }}</ref><ref>{{Cite web |url=http://joerg-berkner.de/Fachartikel/pdf/2002_ICCAP_UM_Berkner_Compact_Models_4_BJTs.pdf |title=Compact Models for Bipolar Transistors, Berkner |access-date=January 16, 2015 |archive-url=https://web.archive.org/web/20150116091931/http://joerg-berkner.de/Fachartikel/pdf/2002_ICCAP_UM_Berkner_Compact_Models_4_BJTs.pdf |archive-date=January 16, 2015 }}</ref>