18475577. SWITCHING ELEMENT (TOYOTA JIDOSHA KABUSHIKI KAISHA)
SWITCHING ELEMENT
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
SWITCHING ELEMENT
This abstract first appeared for US patent application 18475577 titled 'SWITCHING ELEMENT
Original Abstract Submitted
A switching element includes a gate electrode and a source electrode disposed in each of trenches provided in a semiconductor substrate. A longitudinal direction of the trench is defined as a first direction, and the trenches are spaced from each other in a second direction intersecting the first direction. Each of the trenches extends in the first direction while being displaced in the second direction so as to satisfy that an inter-trench region between the adjacent trenches has narrow portions and wide portions alternately arranged in the first direction and alternately arranged in the second direction via the trenches. A source region is distributed across the narrow portion and the wide portion, and is in contact with the source electrode in the wide portion.