A large drop in the resistance of a lightly doped layer when many minority carriers are injected into it. PIN diodes and IGBTs use it to combine high breakdown voltage with low on-state voltage.
Field: PN junctions and diodes
Under forward bias, conductivity modulation lowers the i-layer resistance, and under reverse bias it is highly resistive, so PIN diodes also serve as RF switches and variable attenuators.
Which is a characteristic of a PIN diode, which has a light…This conductivity modulation lets a thick drift layer provide high blocking voltage while keeping on-voltage low.
What is the phenomenon in which forward current through a P…It is voltage-driven, simplifying gate drive, and when on, holes injected from the p+ layer sharply reduce drift-layer resistance (conductivity modulation), keeping on-voltage low even at 600 V to 6.5 kV ratings.
Which correctly describes an IGBT?Tail current Forward bias IGBT On-resistance SiC (silicon carbide) Avalanche breakdown Built-in potential Depletion layer Diffusion capacitance Ideality factor