Patent ID: 11955544
Assignee: ROHM CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A semiconductor device comprising:
a semiconductor layer that has a transistor structure including a source region of a first conductivity type, a drain region of the first conductivity type, a body region of a second conductivity type between the source region and the drain region, and a gate electrode facing the body region; and
a voltage-regulator diode disposed at the semiconductor layer, the voltage-regulator diode having a first portion of the second conductivity type connected to the source region through a first conductive path and a second portion of the first conductivity type electrically connected to the gate electrode by a metal member through a second conductive path electrically separated from the first conductive path,
wherein the transistor structure and the voltage-regulator diode are unified into a single-chip configuration,
the first conductive path includes a source metal connected to the source region and the body region,
the metal member includes a gate finger surrounding the source metal, and
the voltage-regulator diode is made of an impurity region disposed in the semiconductor layer.