Insulated gate field effect semiconductor device

The present invention is intended to form the adjacent trenches by bending them to make a widened portion and a narrowed portion on the substrate of the semiconductor inside the trenches shaped in stripes and to arrange the adjacent widened portions and the narrowed portions alternately to lay the b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: KUBO HIROTOSHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention is intended to form the adjacent trenches by bending them to make a widened portion and a narrowed portion on the substrate of the semiconductor inside the trenches shaped in stripes and to arrange the adjacent widened portions and the narrowed portions alternately to lay the body contact region in the widened portion. By this arrangement, the stability of the potential is improved and thus leakage current is decreased. Further, the on-state resistance can be decreased and an advantage in rule is achieved while improving the channel width per unit area.