DocID026535 Rev 1

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AN4544

General IGBT overview

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Figure 2. Equivalent (a) and simplified equivalent circuits (b)

1.1

IGBT technology evolution

The trench field-stop technology includes several benefits if compared to the planar PT

(punch through). Implanted back-emitter and field-stop for a better control of the dynamic

behavior together with the introduction of the trench structure offer an improved

performance like lower conduction and switching loss, much higher robustness and a

Figure 3. IGBT technology evolution