Semiconductor Device Including Trench Gate Structure and Manufacturing Method

An embodiment of a semiconductor device includes a trench gate structure extending from a first surface into a silicon carbide semiconductor body along a vertical direction. A body region of a first conductivity type adjoins a sidewall of the trench gate structure and includes a first body sub-regio...

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Bibliographische Detailangaben
Hauptverfasser: Ploss, Reinhard, Aichinger, Thomas, Rupp, Roland, Schulze, Hans-Joachim
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An embodiment of a semiconductor device includes a trench gate structure extending from a first surface into a silicon carbide semiconductor body along a vertical direction. A body region of a first conductivity type adjoins a sidewall of the trench gate structure and includes a first body sub-region adjoining the sidewall and a second body sub-region adjoining the sidewall. At least one profile of dopants of the first conductivity type along the vertical direction includes a first doping peak in the first body sub-region and a second doping peak in the second body sub-region. A doping concentration of the first doping peak is larger than a doping concentration of the second doping peak.