Kabushiki kaisha toshiba (20250072084). SEMICONDUCTOR DEVICE
SEMICONDUCTOR DEVICE
Organization Name
Inventor(s)
Takuo Kikuchi of Kamakura (JP)
SEMICONDUCTOR DEVICE
This abstract first appeared for US patent application 20250072084 titled 'SEMICONDUCTOR DEVICE
Original Abstract Submitted
a semiconductor device includes first to fourth electrodes, first to third semiconductor regions, and first and second insulating parts. the first insulating part is located between the second semiconductor region and the third electrode. the fourth electrode is arranged with the first and second semiconductor regions. the second insulating part is located between the first semiconductor region and the fourth electrode and between the second semiconductor region and the fourth electrode. the second insulating part includes first and second insulating regions. the first insulating region surrounds the fourth electrode and contacts the fourth electrode. the second insulating region surrounds the first insulating region and contacts the first insulating region. a dielectric constant of the second insulating region is less than a dielectric constant of the first insulating region.