Patent ID: 11967643
Assignee: SANKEN ELECTRIC CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a first drift region of a first conductivity type;
a base region of a second conductivity type arranged on the first drift region;
a source region of the first conductivity type arranged on the base region;
a main electrode electrically connected to the source region; and
a gate electrode structure that penetrates the source region and base region and reaches the first drift region, wherein:
the gate electrode structure comprises:
a gate electrode;
an insulating material that insulates the gate electrode from the first drift region and the base region;

the semiconductor device further comprises a plurality of field plate structures reaching the first drift region deeper than the gate electrode structure, each of the plurality of field plate structures comprising:
a field plate;
a resistive part that electrically connects the main electrode to the field plate; and
an insulating material that insulates the field plate and the resistive part from the first drift region; and
in plan view, field plate structures of the plurality of field plate structures are arranged in a plane in one of: a first direction or a second direction of the semiconductor device, such that no source region is between adjacent ones of the plurality of field plate structures in the one of the first direction or the second direction.