Patent ID: 9293600
Filing Date: 2016-03-22
CPC Classification: H01L

Claim Text:
1. A semiconductor element comprising: a semiconductor layer g a first portion, a second portion arranged with the first portion in a first direction, a third portion provided between the first portion and the second portion, and a fourth portion, the semiconductor layer including an oxide semiconductor; a first conductive unit electrically connected to the first portion; a second conductive unit separated from the first conductive unit and electrically connected to the second portion; a gate electrode separated from the first conductive unit, the second conductive unit, and the third portion, the gate electrode opposing the third portion; and a gate insulating film provided between the third portion and the gate electrode, a concentration of nitrogen of the first portion being higher than a concentration of nitrogen of the third portion, a concentration of nitrogen of the second portion being higher than the concentration of nitrogen of the third portion, the first portion being on top of the fourth portion, and the concentration of nitrogen of the first portion being higher than a concentration of nitrogen of the fourth portion.