Field effect-controllable semiconductor component
AssigneeInfineon Technologies AG
InventorsFranz Hirler, Frank Pfirsch, Wolfgang Werner
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AssigneeInfineon Technologies AG
InventorsFranz Hirler, Frank Pfirsch, Wolfgang Werner
Estimating the term…
A field effect-controllable semiconductor component, such as a new IGBT using planar technology, includes a shielding zone disposed about a base zone, resulting in elevation of a minority charge carrier density at a cathode side of the IGBT, leading to a reduction of forward voltage. The effect of a drift field produced due to a concentration gradient between the shielding zone and the base zone is that the inner zone no longer acts as a sink for the minority charge carriers. In order to ensure that the breakdown voltage of the IGBT is not reduced by the incorporation of the shielding zone, a non-connected, floating region of high conductivity is disposed in the region of the inner zone. A lower edge of the non-connected, floating region is deeper in the inner zone than a lower edge of the shielding zone. The non-connected, floating region has a conduction type opposite that of the shielding zone and the inner zone.
A field effect-controllable semiconductor component, comprising:
Dependencies are inferred from the claim text.