| 摘要 |
In an MOS-controlled power semiconductor device with switch-off facility having a thyristor-like structure, the switch-off capability is improved by inserting emitter ballast resistors between the first main electrode (H1) and the associated emitter region (8). For this purpose, the emitter region (8) is of annular or strip-like construction and encloses a more weakly doped central region (9) which is exclusively contacted by the first main-electrode metallization (2).
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